Honda trouble code p1399 - The P1399 code can be caused by a variety of issues, including faulty spark plugs, ignition coils, fuel injectors, or even a clogged fuel filter. Additionally, low fuel …

 
2002 Honda accord v6 multiple misfire all clinders ,,,,code p1399, its running rough all 6 coil packs r working, ok, - Answered by a verified Mechanic for Honda We use cookies to give you the best possible experience on our website.. Keefe funeral home ri

How to Fix. Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for …There are a few steps you can take to diagnose the P0300 code in your Honda Accord without taking it to a mechanic: 1. Check for loose or damaged spark plugs: Inspect the spark plugs and their wires for any signs of wear, damage, or loose connections. Replace any faulty spark plugs or wires. 2.If only one of your cylinders was misfiring, you probably would be getting a more specific code than P1399. Also check the distributor rotor along with the cap and coils and wires (as mrgreenz suggests); the EGR valve to make sure it doesn't leak; your fuel pressure which can cause random misfires if the pressure is too low; and injectors if they …HONDA MOTOR CO. LTD.DL-NOTES 2022(22/25) (US438127AA08) - All master data, key figures and real-time diagram. The Honda Motor Co. Ltd.-Bond has a maturity date of 3/10/2025 and off...2004 P1399 (multiple cylinder misfire) code with diagnostics. I have a 2004 with 288K miles on it and this is the first time my van has set a code since I got it at 40K miles in 2007. Though I have already determined the cause of the code I thought I would share my symptoms along with how I diagnosed it. Some background.March 7, 2021 by Jason. P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Accord’s cylinders is misfiring (maybe just one, more on that …I have a 2002 honda civic with two codes showing up and check engine I have a 98 honda accord lx. it shows trouble codes p1456 and p1739 Accord p1456 justanswer p0300 crv p0305 p0301 p1399 p0302 P1456 Honda Accord 2002 - Codes P0300, P0301, P0302, P0305, P1456Thanks to virtual reality, Honda is relying less on a car design practice that’s (literally) shaped auto making since the '30s. Honda is pulling away from a design practice that’s ...Honda accord 2.3 2.4 3.0 code p0301 p0302 p0303 p0304 solved fixedHonda misfire check engine light flashing tsa light on fix part 1 Fix code p0135 honda accord 2001👏👏👍P1399 p0301 p0300 p0302 odyssey codes p1456 p0305 help 2004 1999.P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Civic's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out.54 posts · Joined 2014. #1 · Jul 26, 2016. My friends pilot was idling rough and throwing P1399 and several misfire codes. We found that it was a coil. Replaced the coil and now it runs like new but it still gives P1399. We tried another set of coils and brand new plugs I had saved just to see and still same code.Jan 14, 2007 · Honda Civic Gen Tech and Builds / Show Offs. ... Trouble code: P1399? Thread starter kandyapple_si; Start date Jan 14, 2007; kandyapple_si New Member. 5+ Year Member. May 4, 2015 · However, more often than not, when codes like P0300 and P1399 show up it is a fuel delivery issue. You may want to check the fuel pressure next. If you do not have the tools to check this, and don’t want to invest in a fuel pressure gauge and fittings, have a shop test it for you. May 5, 2015 at 4:25 pm #663121. Brook. HONDA MOTOR CO. LTD.DL-NOTES 2022(22/25) (US438127AA08) - All master data, key figures and real-time diagram. The Honda Motor Co. Ltd.-Bond has a maturity date of 3/10/2025 and off...When is the code detected? The control module monitors the crankshaft speed and has detected a misfire condition. Possible symptoms - Engine Light ON (or Service Engine Soon Warning Light) - Lack/loss of power - Hard start - Engine hesitation. P1399 Honda Description When a misfire occurs, engine speed will fluctuate. If the engine speed ...5 days ago · Step 5: Clear the Trouble Code and Test Drive. After completing the necessary repairs or maintenance steps, it’s important to clear the trouble code from the PCM. Use your OBD-II scanner or code reader to erase the code and reset the check engine light. Once cleared, take your 2002 Honda Accord for a test drive to ensure the misfire issue has ... Jun 9, 2022 · The P1399 code is a diagnostic trouble code (DTC) that indicates a misfire in one or more cylinders of an engine. It can occur in both gasoline and diesel engines, and it is commonly found on Honda vehicles. When the powertrain control module (PCM) detects a misfire, it will set the P1399 code and turn on the check engine light. I have a 2000 Honda Accord. Trouble codes P0303 and P1399 were pulled after the malfunction light came on on the dash yesterday. I am told they represent cylinder 3 misfire and ignition issue. The car … read morei am getting the following CEL codes. P0300, P0301, P0304, P0305, and P1399. i am pulling the plugs and checking them, also checking the coils. i'm going to replace the O2 sensors, clean or replace the EGR valve, check the fuel pressure, change the fuel filter, and seafoam the engine. if this doesn't work, then i'm going in for a valve …P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Civic's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out.2.0L. 4 CYL. AWD. AUTOMATIC. 264,000 MILES. Getting a rough idle problem after the car has warmed up and is idling. Engine sputters and almost quits. Getting trouble code p1399 (random misfire) sometimes and once I got trouble codes for cylinders one to four misfiring. Tried changing plugs but it did not help.I have a 98 Honda CRV that had P0104 and P0103 and P1399 codes. I replaced the plugs and wires with no change. I performed a compression test on all four cylinders and results seemed fine. Compression Test Results: Cylinder 4 – 160 (Dry)/200 (Wet) Cylinder 3 – 150 (Dry)/185 (Wet) Cylinder 2 – 145 (Dry)/190 (Wet) Cylinder 1 – 150 …Several components can cause a misfire in a cylinder, but the spark and fuel are at the core of the problem. Misfires can be caused by faulty spark plug wires, for example, which cause no sparks or intermittent sparks to a cylinder. Fuel delivery issues caused by a malfunctioning fuel injector can result in the … See more2002 Honda accord v6 multiple misfire all clinders ,,,,code p1399, its running rough all 6 coil packs r working, ok, - Answered by a verified Mechanic for Honda We use cookies to give you the best possible experience on our website.Jun 9, 2022 · The P1399 code is a diagnostic trouble code (DTC) that indicates a misfire in one or more cylinders of an engine. It can occur in both gasoline and diesel engines, and it is commonly found on Honda vehicles. When the powertrain control module (PCM) detects a misfire, it will set the P1399 code and turn on the check engine light. Codes P1399, P0505, P0325. I just replaced the engine in a 2002 Accord with a Vtech 4cyl. It runs fine at idle. When it's cold it fluctuates RPMS when you hold it steady around 2000 rpms. It will fluctuate between 1000 and 2000. It threw code P0505 first so I took off the IACV and replaced it.BundysGarage. 75.2K subscribers. Subscribed. 719. 116K views 6 years ago. Honda Acura P1399 Solved Random Cylinder Misfire Detected. This is an in-depth look …Honda civic code p1399 what is it and how can i fix this problem. Posted by emiljohn_898 on Nov 06, 2009. Want Answer 0. Clicking ... Trouble Code p0420 and p1399. code po420 refers to cat converter system bank1 - efficiency below threshold===causes -- cat converter---wiring---HO2S 2There are a few steps you can take to diagnose the P0300 code in your Honda Accord without taking it to a mechanic: 1. Check for loose or damaged spark plugs: Inspect the spark plugs and their wires for any signs of wear, damage, or loose connections. Replace any faulty spark plugs or wires. 2.To diagnose the P1399 Acura code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.P0117 Honda Code - Engine Coolant Temperature Sensor 1 Circuit Low Voltage - Code Popularity: 47,421 Views - Repair Importance Level: 3/3 ... If the ECT Sensor 1 output voltage is a set value, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC). P0117 Honda Code - Engine Coolant Temperature …Recommended Services. On Honda vehicles the OBD code p1399 indicates that there is a random misfire occurring in the engine. In most cases a valve adjustment will correct this issue, however a blocked passage in the EGR (Exhaust Gas Recirculation) system can also generate this same code. Valve adjustments should be performed on …Q: Code P1399. I have 2000 honda civic EX ... check engine light p1399 ... Hi There, As you know, this codes relates to a misfire, but is more commonly known to be caused by valves out of adjustment or in some cases clogged EGR valve passages. When the valves are out of adjustment, this causes timing issues with the opening and closing of the ...CDsDontBurn. P1399 is an alternate random misfire code. Since you have a 4cyl, check for spark, spark plug condition, spark plug wires, condition of the dizzy, and possibly, the timing of the car (advanced / retarded). Maybe, you might want to check the conditions of the two fuel injectors as well.If you want to fly private between California and New York nonstop, you'll need a midsize jet or larger and at least two pilots. However, Honda Aircraft Comp... If you want to fly ...HMC: Get the latest Honda Motor stock price and detailed information including HMC news, historical charts and realtime prices. Indices Commodities Currencies StocksLabor: 1.0. To diagnose the P1399 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.P1399 trouble code on a 2004 Honda Odyssey. Vehicle has 293,000 miles. TPS sensor, thermostat, coolant temp sensor, idle air control sensor, and mass air flow sensor have all been replaced, Cat system … read more1399 - blocked EGR passage or valve clearance out of range. I was shocked how the all of a sudden I got these code and that too not 1 but 4 . I ...P1399 is a Honda specific diagnostic trouble code. It means that more than one of your HR-V's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out.Codes P1399, P0505, P0325. I just replaced the engine in a 2002 Accord with a Vtech 4cyl. It runs fine at idle. When it's cold it fluctuates RPMS when you hold it steady around 2000 rpms. It will fluctuate between 1000 and 2000. It threw code P0505 first so I took off the IACV and replaced it.Dec 20, 2019 · Code P1399 , OBD2 H22a4. I am making this post to hopefully help somebody in the future. Diagnostic codes: P1399, P0300 ,P0301 ,P0302, P0303, P0304. Most information will tell you that more than likely it is the EGR Port passages that need to be cleaned out, which most of the time is correct and in this case it was definitely needed. Good luck! P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Pilot's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out.The P1399 code is exclusive to Honda vehicles, making it a manufacturer-specific anomaly. When your vehicle’s engine control module (ECM) identifies this code, it’s communicating that a random cylinder misfire has been spotted. The crankshaft position (CKP) sensor plays an instrumental role here.Fixed my neighbors rough idling and check engine light issue. Turns out the EGR passages were clogged and the EGR valve has a hacked gasket in it. The cylind...2002 Honda accord v6 multiple misfire all clinders ,,,,code p1399, its running rough all 6 coil packs r working, ok, - Answered by a verified Mechanic for Honda We use cookies to give you the best possible experience on our website.Code P1399 in a Honda Accord is related to a misfire issue. The problem may be caused by several factors, such as faulty spark plugs, ignition coils, or fuel … The trouble code is coming up po302 and p1399 The first code is easy misfire #2 cylinder the second code is non specific for the honda listing, The OBD II scanner says ignition control, manufacture pending, does this mean honda is waiting to update their code list? Common causes of code P1337 could include one or more of the following-. Damaged, burnt, shorted, disconnected, or corroded wiring and/or connectors in the crankshaft position sensor’s wiring harness. Incorrect adjustment of the crankshaft position sensor, but note that this only applies to sensors that are adjustable.Honda accord 2.3 2.4 3.0 code p0301 p0302 p0303 p0304 solved fixedHonda misfire check engine light flashing tsa light on fix part 1 Fix code p0135 honda accord 2001👏👏👍P1399 p0301 p0300 p0302 odyssey codes p1456 p0305 help 2004 1999.P1399 trouble code on a 2004 Honda Odyssey. Vehicle has 293,000 miles. TPS sensor, thermostat, coolant temp sensor, idle air control sensor, and mass air flow sensor have all been replaced, Cat system is clean, EGR system has been cleaned, and valve clearance has been reset.Nov 7, 2017 · Honda Acura P1399 Solved Random Cylinder Misfire Detected. This is an in-depth look at the honda Acura J Series V6 engine with a P1399 code as well as P0300 ... Welcome to The Honda Forums! Welcome to the Honda Forums where you can ask questions or find answers on anything related to your Honda car. Please join our friendly community by clicking the button below - it only takes a few seconds and is totally free. You'll be able to ask questions about your car or chat with the community and help …Jan 14, 2007 · Honda Civic Gen Tech and Builds / Show Offs. ... Trouble code: P1399? Thread starter kandyapple_si; Start date Jan 14, 2007; kandyapple_si New Member. 5+ Year Member. There are a few steps you can take to diagnose the P0300 code in your Honda Accord without taking it to a mechanic: 1. Check for loose or damaged spark plugs: Inspect the spark plugs and their wires for any signs of wear, damage, or loose connections. Replace any faulty spark plugs or wires. 2.Good luck! P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Pilot's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out.Nov 14, 2016 · What Does Code P1399 Mean? OBD II fault code P1399 is a manufacturer specific code, and on some applications, this code is defined as “Glow Plug Circuit High Side, High Input”, and is set when the PCM (Powertrain Control Module) detects an abnormal input voltage in the “high side” of the glow plug control circuit on diesel engines. P1399 trouble code on a 2004 Honda Odyssey. Vehicle has 293,000 miles. TPS sensor, thermostat, coolant temp sensor, idle air control sensor, and mass air flow sensor have all been replaced, Cat system … read moreP1399 - Honda Accord 2002 EX V6. 0 votes . 1.3k views. asked Jun 13, ... We can find any information on the service manual for that code. Related questions +1 vote. 2 ...The first symptom to expect from a P1399 code is the check engine light illuminating on your dashboard to indicate an issue exists. As far as physical symptoms, you can expect to have trouble ...Code P1399 , OBD2 H22a4. I am making this post to hopefully help somebody in the future. Diagnostic codes: P1399, P0300 ,P0301 ,P0302, P0303, P0304. Most information will tell you that more than likely it is the EGR Port passages that need to be cleaned out, which most of the time is correct and in this case it was definitely needed.Mar 7, 2021 · P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Accord's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out. Honda CR-V Owners Club Forums 1399 - blocked EGR passage or valve clearance out of range. I was shocked how the all of a sudden I got these code and that too not 1 but 4 . I ...May 12, 2020 ... QUICK AND EASY APPLIANCE DIY REPAIR VIDEOS – SAVE BIG $$$ BY FIXING IT YOURSELF✓ ✨ If the video was helpful, remember to give it a Thumbs ...P0305 is a fairly common trouble code with the Honda Accord.It’s and OBD2 code and stands for:. P0305: Misfire Detected → Cylinder 5. P0305 is certainly a cause for concern, and should be considered a threat to the drivability your Accord. The nice thing about P0305 is that it’s a cylinder specific trouble code, which makes …Mar 7, 2021 · P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Accord's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out. Honda Civic Gen Tech and Builds / Show Offs. ... Trouble code: P1399? Thread starter kandyapple_si; Start date Jan 14, 2007; kandyapple_si New Member. 5+ Year Member.Dec 12, 2017 ... ... Honda Prelude with H22 engine. Symptoms were rough start, power surging, misfire letting off throttle and the infamous code P1399. This ...My code reader only gave me code P1399. I looked on the forum and found several post for this issue. Most of them also listed codes for the ignition coils. Some also mentioned the EGR valve. I took the EGR valve off and cleaned it. I went to Advance Auto and picked up a coil for $45.There are a few steps you can take to diagnose the P0300 code in your Honda Accord without taking it to a mechanic: 1. Check for loose or damaged spark plugs: Inspect the spark plugs and their wires for any signs of wear, damage, or loose connections. Replace any faulty spark plugs or wires. 2.OBD-II Trouble Codes Help Site. Skip to content. ... OBD Codes Forum. Other. OBD-II P1000-P1999 Powertrain Codes [Archive] p1399 honda prelude. 3 posts • Page 1 of ...Misfire P1399 & P301 won't go away. When I bought my 2001 CR-V SE 4WD in late August 2021 I changed the spark plugs and found oil on them as well as a leaking valve cover gasket that I knew would need replacing. However, it was at the time I returned to college so I put off the repair and got busy with school.What Is a Honda P1399 Random Cylinder Misfire Detected Engine Code? HVAC Mechanic. 37.1K subscribers. Subscribed. 88. 9.7K views 1 year ago. Overview of the causes and fixes of a...What Is a Honda P1399 Random Cylinder Misfire Detected Engine Code? HVAC Mechanic. 37.1K subscribers. Subscribed. 88. 9.7K views 1 year ago. Overview of the causes and fixes of a...Van is stalling, sluggish and now has check engine light. Van comes back over and now has P0300-306 and P1399 codes. I looked back over all connectors and hoses we had off. Everything seemed ok. No vacuum leak noted. We disconnected the battery and it seemed to run better after being hooked back up. Honda Trouble Code P1399 Molecular Infection Biology Jörg Hinrich Hacker 2002-10-03 This comprehensive volume focuses on molecular methods and principles of prokaryotic and eukaryotic pathogens. The authors present the molecular and cellular aspects by focusing on the interactions between pathogenic microorganisms and their hosts. suprchrgedsi. 53 posts · Joined 2003. #7 · Feb 16, 2006. REPLY TO ENGINE CODES PO301-P0304 P1399 MISFIRE RANDOJM MISFIRE. THESE CODE ARE FROM AN ACUTRON CHEAPY OBD2 SCANNER I TRIED THE CAP ROTOR AND INJECTOR BECAUSE IT SEEMED I HAD A DEAD CYLINDER EVERYONE WAS LIKE YOUR GONNA HAVE TO REBUILD YOUR HEAD WELLL IN MY LAST ATTEPMT AT FIXING IT I ...When is the code detected? The control module monitors the crankshaft speed and has detected a misfire condition. Possible symptoms - Engine Light ON (or Service Engine Soon Warning Light) - Lack/loss of power - Hard start - Engine hesitation. P1399 Honda Description When a misfire occurs, engine speed will fluctuate. If the engine speed ...Honda pilot p1399 n multiple misfire cylinders. Changed knock sensor, coils on all 4 misfiring cylinders, all spark plugs, egr, air idle control valve, catalytic converter, exhaust from cat back, still starts hard, idles low but rough, loses power n jerks around 2500rpm. No idea what to try now... just throwing money down drain with no results.CDsDontBurn. P1399 is an alternate random misfire code. Since you have a 4cyl, check for spark, spark plug condition, spark plug wires, condition of the dizzy, and possibly, the timing of the car (advanced / retarded). Maybe, you might want to check the conditions of the two fuel injectors as well.Description. When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position ( CKP) sensor signal to vary, the Engine Control Module ( ECM) can determine that a misfire is occurring, and the Diagnostic Trouble Code (DTC) will be set. P1399 Acura Code - Random Cylinder Misfire Detected.If you live with ADHD, you may find that falling asleep — and staying asleep — can be a challenge. Here’s why and how to cope. Sleep is a vital part of life, but if you live with a...P1399 - Honda Accord 2002 EX V6. 0 votes . 1.3k views. asked Jun 13, ... We can find any information on the service manual for that code. Related questions +1 vote. 2 ...Mar 7, 2021 · P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Civic's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out.

106,000 MILES. Engine pops and sputters when idling. Does perform cold start high idle. As engine warms performance worsens and idle drops. Intermittent stall. When hot vehicle wont accelerate. Has new spark plugs and wires. Have tried new ignition coil with no success. Timing belt and related parts have also been replaced due to excessive .... Gang talk examples

honda trouble code p1399

Nov 5, 2020 ... 6:15. Go to channel · Honda Odyssey 3.0 problems p0300 p0301 p0302 p0303 p0304 p0305 p0306. Tiago Auto Repair•35K views · 22:54. Go to channel .....P1399 trouble code on a 2004 Honda Odyssey. Vehicle has 293,000 miles. TPS sensor, thermostat, coolant temp sensor, idle air control sensor, and mass air flow sensor have all been replaced, Cat system … read moreMar 7, 2021 · P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Jazz's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out. po301 to po304 are miss fire codes, 301 cylinder 1, 302 cylinder 2 Etc, p1399 means that this must be a Honda manufactured vehicle. All are misfire codes, Could be plugs, wires, coils. ETC, Check and you will find the problem.Mar 26, 2019 · 2004 P1399 (multiple cylinder misfire) code with diagnostics. I have a 2004 with 288K miles on it and this is the first time my van has set a code since I got it at 40K miles in 2007. Though I have already determined the cause of the code I thought I would share my symptoms along with how I diagnosed it. Some background. Codes P1399, P0505, P0325. I just replaced the engine in a 2002 Accord with a Vtech 4cyl. It runs fine at idle. When it's cold it fluctuates RPMS when you hold it steady around 2000 rpms. It will fluctuate between 1000 and 2000. It threw code P0505 first so I took off the IACV and replaced it.Good luck! P1399 is a Acura specific diagnostic trouble code. It means that more than one of your TL's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out.causes of misfire all cylinders honda vtec 2000 v6 - no plug wires or distributer - coil over. new plugs, new egr valve new coils. obd2 codes - p1399-p0301-p0302-p0303-p0304-p0305-p0306 … read moreThe P1399 code is a diagnostic trouble code (DTC) that indicates a misfire in one or more cylinders of an engine. It can occur in both gasoline and diesel engines, and it is commonly found on Honda vehicles. When the powertrain control module (PCM) detects a misfire, it will set the P1399 code and turn on the check engine light.2003 Honda Odyssey code p1399 - Honda 2003 Odyssey question. Search Fixya. Browse Categories Answer Questions . 2003 Honda Odyssey; Honda Odyssey ... Have the diagnostic trouble codes retrieved from the car's computer--any code that starts with 17 as in "1740" or codes that start with zero like "0730" are transmission codes and …Step 5: Clear the Trouble Code and Test Drive. After completing the necessary repairs or maintenance steps, it’s important to clear the trouble code from the PCM. Use your OBD-II scanner or code reader to erase the code and reset the check engine light. Once cleared, take your 2002 Honda Accord for a test drive to ensure the misfire issue has ...Mar 7, 2021 · P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Pilot's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out. .

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