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P0301 Diagnostic Trouble Code Discussion for May 2013

Cylinder 1 Misfire Detected


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Trouble Ticket Help Requests for DTC P0301
Help Request Posted
2007 Suzuki Swift+ 1.6L Misfire, MIL Lamp on VIN: KL5TJ66637
P0301: misfire no 1 cyl. The origanal problem still exists when you come to a stop after cruising quite often it will misfire for 4to5 seconds and then smooth right out when it sets a code it always flags #1 cyl misfire.We have tried blocking the egr off also swaped injectors from #1 ...
May 01, 2013
2005 Scion tC (Car) 2.4L Poor Idle Quality, Misfire VIN: JTKDE17795
Hey guys, I feel like this one's staring me in the face and I just can't get it. It has a random miss at idle that affects all cylinders and the kicker is it goes away and PURRS when I add 20% injector volume on my scanner. Lean miss, right? No specific cylind...
May 06, 2013
2005 Scion tC (Car) 2.4L Poor Idle Quality, Misfire VIN: JTKDE17795
Hey guys, I feel like this one's staring me in the face and I just can't get it. It has a random miss at idle that affects all cylinders and the kicker is it goes away and PURRS when I add 20% injector volume on my scanner. Lean miss, right? No specific cylind...
May 07, 2013
1999 Volkswagen EuroVan MV 2.8L Hesitation, Misfire, MIL Lamp on VIN: WV2MH2704X
P0301: Cylinder 1 misfire. Thank all of you in advance for your time and input! One of our customers is in the car flipping business and brought us this van to go through. When we first got the van we found the engine started right up but missfired badly on cylinders 1 and 6. We repla...
May 07, 2013
2002 Chevrolet Silverado 1500 5.3L Poor Idle Quality, Cuts out, Misfire, MIL Lamp on VIN: 2GCEK19T22
P0301: misfire. miss at idle and under light load. miss is all bank one, moved coils, plugs, wires, cleaned injector rail, moved injectors, bank 1 and bank 2 o2 sensors, all of them to other side. no change. replaced fuel filter. b1s2 reads 800 and b2s2 reads around zero. rep...
May 09, 2013
2008 Subaru Impreza Outback Sport 2.5L Misfire VIN: JF1GH63628
P0301: misfire 1. bought vehical at auction, mil flashing above 4000 rpm (like when in o.d. to pass) runs smooth during missfire. short term 3.1% long term 0% no overheating of cat no other codes. reproduceable in the bay in park, It is not showing any signs of an actual miss. ...
May 10, 2013
2008 Subaru Impreza Outback Sport 2.5L Misfire VIN: JF1GH63628
P0301: misfire 1. bought vehical at auction, mil flashing above 4000 rpm (like when in o.d. to pass) runs smooth during missfire. short term 3.1% long term 0% no overheating of cat no other codes. reproduceable in the bay in park, It is not showing any signs of an actual miss. ...
May 11, 2013
2006 Audi A3 2.0L Misfire, MIL Lamp on VIN: WAUMF78P26
Hello Audi/VW Techs. This A3 has a pattern of running rough and misfiring for about 30 seconds when cold, then it runs perfect all day. High and low fuel pressure are within specs. Coils have been updated. The interesting thing is that when it runs rough my re...
May 14, 2013
2007 Volkswagen Beetle 2.5 2.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3VWRG31Y27
P0301: Cyl. 1 misfire. Hello Everyone, I have a vehicle that idles rough and misfires when cold. After it warms up for about 45 seconds it run fine. We replace spark plugs and mass air flow sensor and that didn't help. I was wondering if someone can lead us in the right direction. W...
May 14, 2013
2005 Audi A4 Quattro Cabriolet 3.0L Misfire, MIL Lamp on VIN: WAUET48H15
P0301: cyl 1 misfire. I have an audi a4 that came to me after audi diagnosed as a catalyst problem. fast forward bank 1 catalyst installed same problem. will not miss at idle.driving down highway cel flashes until u hit a steady speed then goes out. snap on verus expert mode says 1...
May 15, 2013
2008 Mini Cooper S 1.6L Poor Idle Quality, MIL Lamp on VIN: WMWMF73538
This car came in for check engine light and poor idle. Car idles poorly but runs great going down the road. I have smoked it several times and not found any vacuum leaks. Spark plugs look good and are correct. The fuel pressure readings on data stream seem goo...
May 15, 2013
2006 Audi A3 2.0L Misfire, MIL Lamp on VIN: WAUMF78P26
Hello Audi/VW Techs. This A3 has a pattern of running rough and misfiring for about 30 seconds when cold, then it runs perfect all day. High and low fuel pressure are within specs. Coils have been updated. The interesting thing is that when it runs rough my re...
May 16, 2013
2004 Kia Spectra 1.8L Stall, Misfire VIN: KNAFB12104
P0301: Cylinder 1 Misfire Detected. this lil car runs fine at idle and down road until u go pass a car then slow down it starts missfiring.or if u put it in gear under hard load it and then let off it missfires not while underload but at idle after the load is put on it like when u stop and go a...
May 17, 2013
2004 Audi A6 Quattro 3.0L Misfire VIN: WAULT64B34
P0301: missfire. This car will set the lean code after 2 trips. occas has slight missfire, more cold. runs well warm. The crank case vent valve has been replaced yet there is excessive vac in crankcase. If you remove the oil fill cap the engine runs poor and almost stalls. It ...
May 23, 2013
2002 Lexus IS300 3.0L Cuts out, Misfire, MIL Lamp on VIN: JTHBD19222
P0301: Cylinder 1 Misfire Detected. We did replace timing belt and after that it got misfire on cylinder #1 and #6. Replaced Ignition coil, wires, plugs, ECM, recheck timing and I did replace VVT sprocket, igniter. The misfire only happen at idle engine speed when it goes above 1000 rpm spark is...
May 23, 2013
2005 Audi A4 Quattro Cabriolet 3.0L Misfire, MIL Lamp on VIN: WAUET48H15
P0301: cyl 1 misfire. I have an audi a4 that came to me after audi diagnosed as a catalyst problem. fast forward bank 1 catalyst installed same problem. will not miss at idle.driving down highway cel flashes until u hit a steady speed then goes out. snap on verus expert mode says 1...
May 24, 2013
2002 Dodge Ram 1500 Truck ST 4.7L Surge, Misfire, MIL Lamp on VIN: 3D7HU18N42
P0301: Cylinder 1 Misfire Detected. This began approx 4 to 5 months ago, cust stated truck ran a little rough and cel would come on. I found the four codes for cyl 1,3,5,7, misfire codes however never felt a misfire or rough idle. After this happened 3 or 4 times I started to try and fix it, all...
May 28, 2013
2001 Volvo S40 1.9L Misfire VIN: YV1VS29531
P0301: Cyl 1 misfire. Cylinders 1&2 are dead. Removing the injector connector has NO effect. The scan tool however shows misfires on cylinders 1&4. the previous mechanic installed the timing belt, But the marks look good. Found a vacumn leak at the intake, replaced intake m...
May 31, 2013