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P0301 Diagnostic Trouble Code Discussion for October 2010

Cylinder 1 Misfire Detected


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Trouble Ticket Help Requests for DTC P0301
Help Request Posted
2004 Mazda B4000 4.0L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 4F4YR46E54
P0301: Cylinder 1 Misfire Detected. Hi fellow Mazda techs. MIL flashing when vehicle came in. Hooked up IDS and found those codes. Data logger shows O2 precat fluctuating OK, O2S12 .91V steady and O2S22 .75V steady. LTFT bank 1 -15% and LTFT bank 2 25%. And then all of a sudden all lines on IDS ...
October 01, 2010
1998 Subaru Forester 2.5L MIL Lamp on VIN: JF1SF635XW
P0301: Cylinder 1 Misfire Detected. I have this car in that seems to idle and run just fine. Some of these codes typically are pretty straight forward. I have so many codes that conflict one another I dont know if I can trust the scan data. Anyone ever seen anything like this? In addition to the...
October 01, 2010
2005 Mazda MPV ES 3.0L Hesitation, Cuts out, Misfire, Poor Fuel Economy, MIL Lamp on VIN: JM3LW28J15
P0301: Cylinder 1 Misfire Detected. ... with a misfire his MPV has aquired earlier that day. The first thing i did was scanned for codes and retrieved P0306 (Misfire Cyl 6). Checked freeze frame and saw LTFT was rich on bank affected. Nothing else seemed to jump out at me. Checked mode 6 and it ...
October 06, 2010
1997 Subaru Impreza Outback 2.2L Hesitation, Cuts out, Stall, Misfire, MIL Lamp on, Miss= hvy-off idle. VIN: JF1GF4856V
P0301: Cylinder 1 Misfire Detected. Aftr initl mouse chew repairs made in Oregon, left shop w/cel on bu no runablty probl. Fueled up in centrl Wash, drove approx 75+/- miles (1/4 tank), then cel started flashing & had very notable misfire. She continued driving another [...] to get home &...
October 06, 2010
1999 Volkswagen Beetle GL 2.0L Poor Idle Quality, Hesitation, Misfire VIN: 3VWCC21C4X
P0301: Misfire cyl 1. Car came in barely running, with multiple misfire codes. Has codes for all cyl misfiring. Champion spark plugs that were replaced 50 miles ago fouled out. Ign coil also tested bad.we replaced plugs with ngk platinums, and ign coil. Cleared codes, but after run...
October 06, 2010
1997 Subaru Impreza Outback 2.2L Hesitation, Cuts out, Stall, Misfire, MIL Lamp on, Miss= hvy-off idle. VIN: JF1GF4856V
P0301: Cylinder 1 Misfire Detected. Aftr initl mouse chew repairs made in Oregon, left shop w/cel on bu no runablty probl. Fueled up in centrl Wash, drove approx 75+/- miles (1/4 tank), then cel started flashing & had very notable misfire. She continued driving another [...] to get home &...
October 07, 2010
1998 Ford Expedition Eddie Bauer 4.6L Hesitation, Misfire VIN: IFMRU1761W
P0301: missfire. i have this suv thats killin me..miss fires on 1234 cyls and all o2 go lean at same time..one minet its good them misses like crazy..no vac leak , comp good dpfe new plugs wires new.. please help thanks ken
October 09, 2010
2003 Audi A6 Quattro Avant 3.0L Misfire VIN: WAUVT64B13
P0301: misfire cyl 1. I am turning to all you audi guru's for help. There is an auto that was brought over to me from a different auto shop. The previous problem was that one of the exhaust Camshaft Lob from the passenger side head was lost and one lifters. The mechanics in the oth...
October 10, 2010
2005 Ford F-150 King Ranch 5.4L Poor Idle Quality, Misfire VIN: 1FTPW14585
P0301: 1 Missfire. ... am hoping that someone can see what I'm missing. Truck came in two weeks ago with a misfire. P0301. Service writer sold a tuneup with a coil. In taking out spark plugs we succeeded in breaking off our extractor in #8 hole. Removed engine and cylinder head ...
October 14, 2010
2002 Ford Focus SE 2.0L Cuts out, Stall, MIL Lamp on VIN: 1FAPP3632W
P0301: Cylinder 1 Missfire. ... much background on this vehicle. We service this customers GM vehicles on occassion. Vehicle came in apprx 164 miles ago for MIL on and a report of a stall. Vehicle started no issues,test drove till engine was at temp for 15 mn addtionaly. Was not able t...
October 16, 2010
2003 Audi A6 Quattro 4.2L Poor Idle Quality, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: WAUML64B03
P0301: Cylinder 1 misfire. Vehicle towed in no start, found battery had 51cca. Installed new battery, upon start up engine had noise, appears to come from inside the intake. After the chain tensioners and valve cover gaskets, no codes but cam crank correlation and misfire p0300-p0303 pu...
October 21, 2010
2002 Dodge Caravan SE 3.3L Misfire, MIL Lamp on VIN: 1B4GP25302
P0301: Cylinder 1 Misfire Detected. Vehicle came in with a head gasket leak. We sent heads to machine shop where they milled and vacuum tested the heads. We replaced the gaskets, and due to the misfires in cylinders 1 and 5, we have replaced all spark plugs, ignition wires, and coil. Where do we...
October 21, 2010
2002 Land Rover Freelander S 2.5L Misfire, MIL Lamp on VIN: SALNM22252
P0301: Cylinder 1 misfire. Losing injector pulse from #1 and 3 cylinders after about 20 secs. Of vehicle running. Replaced vis motors on intake. Performed compression check on all cylinders at 160 lbs.ive swapped injectors and coils, replaced all spark plugs, problem comes back to #1 an...
October 26, 2010
2002 Land Rover Freelander S 2.5L Misfire, MIL Lamp on VIN: SALNM22252
P0301: Cylinder 1 misfire. Losing injector pulse from #1 and 3 cylinders after about 20 secs. Of vehicle running. Replaced vis motors on intake. Performed compression check on all cylinders at 160 lbs.ive swapped injectors and coils, replaced all spark plugs, problem comes back to #1 an...
October 27, 2010
2002 Toyota Tacoma S-Runner 3.4L Misfire VIN: 5TEWN72N52
P0301: Cylinder 1 Misfire Detected. I am posting this request for one of the gentlemen that work with me and do not know everything but will attempt to be as accurate as possible Vehicle came in with 129K on the clock and plugs were original, we replaced with NGK 3967,BKR5EKB-11 plugs and a fuel...
October 27, 2010