2003 Chevrolet Avalanche "p0300" Questions

code0171 system too lean on 2004 chevy avalanche check engine light came on codes came up 0171/p0300? any solution P0300 Means randome miss fires detected; Cause is you may need a tune up.Or you just ...

Why do I still have a Rough Idle and P0300 Rough idle with no MIL / replaced plugs and wires rough idle got worse and now the MIL is on with P0300 scanner reads cylinders 3 and 4 missing I have ...

can not figure out how i have random miss fires i just replaced wires and plugs. i have a p0300 code I had this problem two weeks ago. Your old plugs are Iridium. The new plugs you installed are not. ...

error codes p0171,p0174,p0300 how to fix or what to look for maybe no fuel spray by the injector... check the fuel pressure, fuel filter and try to check any consistent supply going to the injector.

code p0300 and p0449 I'm assuming you have compression on those two cylinders and you have visually checked to see if the cylinders have spark and injector pulse.The code 449 is for a problem with

...START VEHICLE, DOES THIS CODE P1400 COLD START EMISSION REDUCTION SET. AFTER THIS SETS, THEN CODE P0300 ENGINE MISFIRE SETS ALSO. HAS ALL LATEST SOFTWARE CALIBRATIONS IN ECM, BCM, TCM, RCDLR. IF ...

...as was diagnosed. After doing so it still has a misfire and the new code i received was a P0300 which opened up a pandora's box of what else could be wrong. Faulty fuel injectors, spark

I have a 2002 Pontiac Firebird V6, I have the check engine code P0300, and I've replaced the spark plugs and wires and still have it, what's next? https://www.obd-codes.com/p0300 P0300 OBD II Trouble ...

I have a 2007 Toyota Sienna, p0304 and p0300, before addressing, now p0301 and p0300. I have a 2007 Toyota Sienna 6 cylinder engine, two weeks ago the check engine light came on. It threw a p0304 and ...

All of a sudden started running rough ,showing code p0300 on 2005 buick lesabre custom 3.8l "Basically this P0300 code means that the the car's computer has detected that not all of the engine's ...