P CODES (POWERTRAIN) P0300 - P0399

2003 Cavalier With A 2.2 Ecotec Engine, Misses At Idle And Under Acceleration, Smooth At Higher Rpm, Changed Out Icm And Wires And Plugs...

I Have The Car Listed Above, Non-turbo That Will Lose Engine Power Randomly. It Will Start Right Up, And It Could Run Smoothly For A Short...

Engine Has 140,000 Miles After Piston Rings Replaced And Both Heads Done. Spark Plugs And Wires Changed With New Gm Brand 6,000 Miles Ago....

I Have A 2000 Accord Ex V6 With 175,000 Miles. I Was Nearly Empty In Gas When I Put Half A Tank In It. Drove 2 Miles Home Everything Was...

Car Runs Fine When First Start It Up In The Morning. Once The Engine Temperature Gets To Normal It Starts To Miss. Throwing A P0300 Code. It...

Pulling My Hair Out! This Van Had A Bunch Of Codes, I Have Got Rid Of Of Them Except P0300 Keeps Coming Back Every Couple Days 50- 150 Miles...

Car Listed Above Is A Fx35. Customer Changed Spark Plugs, Then Noticed Not Running Well; Stated May Have Mixed Up Coil Connections. I...

Testing The Primary And The Secondary Windings On Coil On Plugs. Ford Focus 2.3 Litre. The Specs In The Manual Says Primary Should Be 0.4 To...

2002 Ford Taurus Sel 24-valve Dohc. Have Been Having Problems With A Misfire On Cyclinder 1. Changed Plugs, Wires, Fuel Filter And...

I Have Been Working On This Diagnosis For Over 1 Yr, -eliminating As I Go Plugs Replaced (ngk Iridium), Coils Replaced Denso Import Direct...