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P0300 Diagnostic Trouble Code Discussion for February 2016

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
1999 Lexus LS400 4.0L Misfire, MIL Lamp on VIN: JT8BH28F8X
P0300: Multiple Cylinder Misfire Detected. Customers complaint is engine is sluggish and check engine light is on, found codes PO300, PO301,PO305,Po307, P1126 magnatic clutch fault, P1349 VVT system fault bank 1 Found good spark on left bank, cleared codes and engine runs fine until driven for a few mi...
February 02, 2016
2006 Nissan Frontier SE 4.0L No Start, Cuts out, Stall, MIL Lamp on VIN: 1N6AD06W46
P0300: Multiple Misfire Detected. ... ago with intermittent stalling and no start. Would not act up in shop so I replace known problem ecm relay, crankshaft sensor and spark plugs. Customer said truck has been fine for 9 months and then did same thing, she was driving and it lost power and the...
February 02, 2016
2007 Mercedes-Benz C280 4Matic 3.0L No Start, Misfire, MIL Lamp on VIN: WDBRF92HX7
P0300: Misfire. to all Mercedes Benz gurus out there. got this c280 driving me nuts. it's got the classic extended crank with no start. replaced the crank shaft sensor and nothing. checked fuel pressure and was at 60 psi. the customer was in a hurry so i told him to take it t...
February 03, 2016
2006 Volkswagen Passat 2.0T 2.0L Misfire VIN: WVWAK73C76
P0300: Multiple cylinder misfire. Greetings everyone, This vw is hard to start when cold, will wind over until you release key from the crank position, then fires up as I am releasing the fob. After it starts it runs fine for a short time, then starts missing under load.When it is misfiring t...
February 03, 2016
2012 GMC Sierra 3500 HD SLE 6.0L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1GT423CG8C
P0300: engine misfire detected. ... greatly appreciated on this one. Customer brought truck to us after they had replaced the engine themselves and now it runs poorly. customer stated that after the USED engine was installed all was good other then lean codes p0171 and p0174 setting. after s...
February 05, 2016
2011 Chevrolet Silverado 1500 LS 4.8L engine light VIN: 3GCPCPEA8B
P0300: multiple cyl misfire. ... misfiring. We replaced plugs, wires and 1 coil(cyl 4). We used delco plugs and wires and ordered a coil from GM. The truck now drives perfectly, but continues to set a P0300. While watching misfire counters cyl 4 continues to show consistent misfires even ...
February 06, 2016
2012 GMC Sierra 3500 HD SLE 6.0L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1GT423CG8C
P0300: engine misfire detected. ... greatly appreciated on this one. Customer brought truck to us after they had replaced the engine themselves and now it runs poorly. customer stated that after the USED engine was installed all was good other then lean codes p0171 and p0174 setting. after s...
February 08, 2016
2012 GMC Sierra 2500 HD SLE 6.0L Poor Idle Quality, Hesitation, Surge, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GT220CG6C
P0300: random missfire. This truck runs fine cold. No issues in open loop operation. After warm up with closed loop and extended idle, P0137 occurs and shortly after idle quality suffers. ST Fuel trims hit -20 to -24% and LT trims are pinned at -27%. Bank 1 sensor 1 sits around 440-4...
February 10, 2016
2012 GMC Sierra 2500 HD SLE 6.0L Poor Idle Quality, Hesitation, Surge, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GT220CG6C
P0300: random missfire. This truck runs fine cold. No issues in open loop operation. After warm up with closed loop and extended idle, P0137 occurs and shortly after idle quality suffers. ST Fuel trims hit -20 to -24% and LT trims are pinned at -27%. Bank 1 sensor 1 sits around 440-4...
February 11, 2016
2005 Land Rover LR3 SE 4.4L Poor Idle Quality, Misfire, MIL Lamp on, Multipal malfunction VIN: SALAE25445
P0300: Random misfire. Any tips or been there done that help please.
February 12, 2016
2003 Chevrolet Silverado 1500 4.8L Misfire VIN: 2GCEC19V53
P0300: Multiple Cylinder Misfire Detected. Vehicle has p0300 counting on cylinder #5 at idle. Did the Quick basics. swapped plug wire and coil around with no result still #5. swapped injector. performed compression test does build to 148-150. also removed valve cover and looked at valve spring nothing ...
February 16, 2016
2001 Chevrolet Blazer LS 4.3L Misfire, MIL Lamp on VIN: 1GNCT18W01
P0300: Multiple Cylinder Misfire Detected. ... Truck drove in with misfire code P0300. very random misfire on accel, mostly on cylinders 1,4,6 on idle. We have thoroughly looked through it ex. ignition, fuel, electrical, cooling, smoke tested, checked for vacuum leaks etc. We have a donor vecihle, in w...
February 19, 2016
2005 GMC Canyon Z71 SL 2.8L No Start, Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1GTCS19825
P0300: Engine Misfire Detected. Hi Everybody I have my Employees truck here he was driving to work today truck started running rough and made it to work and shut truck off.When he went to leave truck would not start. We towed it in and it has fuel pressure and spark on all 4 coils.Did compre...
February 20, 2016
2000 Toyota Avalon XL 3.0L Misfire, MIL Lamp on VIN: 4T1BF28B2Y
P0300: Multiple Cylinder Misfire Detected. ... in my shop. Note I install VVT solenoid on #2 cylinder or left bank. After driving 4 miles after clearing computer trouble codes it set code P1354. Also I was wondering if the #2 not lining up perfect being 1/2 cog off wou...
February 22, 2016
2001 Chevrolet Blazer LS 4.3L Misfire, MIL Lamp on VIN: 1GNCT18W01
P0300: Multiple Cylinder Misfire Detected. ... Truck drove in with misfire code P0300. very random misfire on accel, mostly on cylinders 1,4,6 on idle. We have thoroughly looked through it ex. ignition, fuel, electrical, cooling, smoke tested, checked for vacuum leaks etc. We have a donor vecihle, in w...
February 23, 2016
2001 Toyota Sequoia Limited 4.7L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: 5TDBT48A71
P0300: Multiple Cylinder Misfire Detected. At idle the left bank is not hitting at all. Cyls. 1,3,5,and 7 are missing. If you come off idle just a bit, the misfires go away. Also, if you add carb spray to the intake, the misfires go away. We have 20" of vacuum at the intake. Can hear all injectors ...
February 24, 2016
1998 Cadillac Seville SLS 4.6L EGR Decel test VIN: 1G6KS54Y2W
P0300: Engine Misfire Detected. Hello Fellow Techs, We received this low mileage Caddy with a failed Indiana OBD 2 test. Only code on form was P0171 (Bank 1 lean), We scanned codes and found 6 codes, engine light on and all monitors run. We started with fuel pressure 40 psi at idle and smok...
February 25, 2016
2000 Honda Accord EX 3.0L Cuts out, Stall VIN: 1HGCG2251Y
P0300: Multiple Misfire Detected. Vehicle will be hard to start intermittently, We scanned the vehicle to check data. The vehicle will start, but you have to hold the accelerator pedal down lightly to keep it running once it starts. It runs rough and the MIL comes on, sometimes it flashes. We ...
February 26, 2016