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P0300 Diagnostic Trouble Code Discussion for August 2017

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2011 Land Rover Range Rover Sport Supercharged 5.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: SALSH2E47B
P0300: misfire multiple cylinders. This Rover idles very rough and the engine makes allot of noise. The super charger coupler is bad and that makes noise but with the belt off there is still timing chain type noises. I scoped the camshaft and crankshaft sensors and found the bank 1 intake out o...
August 03, 2017
2012 Chevrolet Equinox LS 2.4L Surge, Misfire VIN: 2GNALBEK0C
P0300: testing and results. It has a miss fire at a hot idle in gear. Very intermittent. customer says this has been going on for a long time before and after the original repairs. After an extended expressway drive or extended hot idle it will develop a random misfire only at idle. It ...
August 08, 2017
2009 Volkswagen Jetta SEL 2.0L Misfire VIN: 3VWTJ71K19
P0300: ramdom misfire. ok I have a VW jetta CCTA engine. The car was towed in due to timing chain tensioner failure. The tensioner let go and customer bent all the intake valves. We took the head off, sent it to the machine shop and they replace all intake valve ( they said exhaust...
August 08, 2017
2010 Volkswagen CC Luxury 2.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: WVWHP7AN7A
P0300: Random misfire. Ive got a 2000 VW 2.0 TSI that had gas in cylinder #2 replaced injector and then #3 full of fuel. Replaced the other 3 injectors and no more washing . Now have miss on cylinder #1 I scoped primary signal on #1 and #2 I seem to have ok patterns I haven't used s...
August 08, 2017
2001 GMC Sierra 1500 SL 4.8L Misfire, MIL Lamp on VIN: 1GTEK14V91
P0300: Multiple Cylinder Misfire Detected. once a while friend complains about misfire at idle runs rough then straighten out . truck has all kinds of power on take off and thruway run . scan while idle and has random misfire but not always . thanks
August 10, 2017
2005 Mazda 6 i 2.3L Hesitation, Stall, MIL Lamp on VIN: 1YVFP80C55
P0300: Random Misfire Detected. Hit the gas to pull out in traffic and its stutters and sometimes stalls. feather it and it goes. ltft -20 at idle stft -4. slightest touch of throttle ltft jumps down to about 2 stft 0. Cleaned the throttle plate, same results. Replaced MAF with known good ma...
August 10, 2017
2016 Honda Civic Touring 1.5L Hesitation, Surge, Misfire VIN: 2HGFC1F97G
P0300: Random missfire. ... about went in to limp mode. Has missfire under load code p0300 updated pcm with new software road tested was good but when driving on highway it missfire and slows down has new spark plugs fuel trim and all data reading normal
August 14, 2017
2006 Ford Explorer Eddie Bauer 4.6L Misfire VIN: 1FMEU748X6
P0300: engine misfire on start-up. Roadtest has us feeling a cycling, rumble strip/missfire type of shudder on light throttle starting about 60 km/h. Replaced plugs wires for missfire but still same symptom. Even applying brake switch lightly while shuddering occuring it still continues. I am u...
August 15, 2017
2004 Mercedes-Benz SL500 5.0L Misfire VIN: WDBSK75F94
P0300: random misfire detected. ... it was intermittently having misfires on cyl. 5 and 7. replaced all ignition related parts. After replacing parts the car ran good down the freeway until I decelled off the freeway and check engine light came on with the p0305 and P0307. Consiquently it sh...
August 16, 2017
2004 Dodge Dakota SLT 4.7L Misfire, MIL Lamp on VIN: 1D7HG48N94
P0300: Multiple Misfire Detected. Thank you to anyone who reads this post. Customer states that he drove to work and it was fine. When he went to go to lunch he stared the truck and it was running poorly. The truck has a consistent misfire on cylinders 1,2,3,4, and intermittent misfire on cyli...
August 17, 2017
2005 Mazda 6 i 2.3L Hesitation, Stall, MIL Lamp on VIN: 1YVFP80C55
P0300: Random Misfire Detected. Hit the gas to pull out in traffic and its stutters and sometimes stalls. feather it and it goes. ltft -20 at idle stft -4. slightest touch of throttle ltft jumps down to about 2 stft 0. Cleaned the throttle plate, same results. Replaced MAF with known good ma...
August 17, 2017
2004 Mercedes-Benz SL500 5.0L Misfire VIN: WDBSK75F94
P0300: random misfire detected. ... it was intermittently having misfires on cyl. 5 and 7. replaced all ignition related parts. After replacing parts the car ran good down the freeway until I decelled off the freeway and check engine light came on with the p0305 and P0307. Consiquently it sh...
August 17, 2017
2009 Volkswagen Beetle 2.5L Poor Idle Quality, Stall VIN: 3VWRW31C89
Got a 2009 VW Beetle.pull the dipstick out or oil cap off,eng/wants to stall.i did this test : 1. There are 2 crankcase breather valves (PCV system) used on this engine. One is located on and integral to the valve cover of the engine and the other is located w...
August 21, 2017
1998 Mercedes-Benz SLK230 Kompressor 2.3L Stall, won't idle VIN: WDBKK47F9W
P0300: Missfire Random Cylinders. Help Euro techs, I'm helping a friend at his shop with this Benz. Thanks in advance for reading and helping. Engine starts and will not continue running unless you go to WOT. At WOT engine is barely able to run, but will continue as long as you hold throttle w...
August 22, 2017
2002 Toyota Echo 1.5L Poor Idle Quality, Hesitation, Misfire VIN: JTDAT12352
P0300: Multiple Cylinder Misfire Detected. Car came in with codes and hesitation when first throttling. Found wrong sparkplugs in it and replaced. Misfire went away. Ran volume efficiency test and passed. Smoke tested and found small air leak (repaired) and leak around oil cap (replaced). System is obv...
August 22, 2017
2006 Hyundai Sonata GLS 3.3L Misfire VIN: 5NPEU46F26
P0300: Multiple Misfire Detected. ... one! Vehicle came into shop last week for MIL on and flashing. Scanned vehicle and found P0300 code and #1 cyl. misfire counter going between 25-50. #1 is under the intake plenum so we got plugs and a coil coming changed them while we had intake off. No c...
August 28, 2017
2009 Mitsubishi Lancer Ralliart 2.0L Hesitation, MIL Lamp on, Erratic shifting VIN: JA3AV66VX9
P0300: Random misfire active. ... this high performance version of the Lancer. Ralliart. It is a 2.0 Turbocharged engine. Auto Trans. It is overdue for IEPA emissions testing I can clear the codes, drive ever so easy and set all monitors to ready. I could take it to the test like that b...
August 28, 2017