P CODES (POWERTRAIN) P0300 - P0399 P0300

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...

Engine Mechanical Problem 2003 Chevy Avalanche V8 Two Wheel Drive Automatic I Am Getting A Po300 Missfire Code, And Have No Fire To...

1999 Mercedes Benz 320e 6 Cyl Automatic Got Po300 (random Misfire). To Keep A Long Story Short I Replaced The Maf But With No Availe....

The Truck Starts Fine And Runs Well. If I Drive It 20 Plus Miles And Let It Cool Of Just A Little (time To Shop At Lowes 20 Min) It Starts...

I Replaced My Spark Plugs In My 2001 Ranger Its A 4.0 V6 And It Went Threw Emmissions And Passed Now The Code P0300 Came Up And It Idles...

Hi Ihave Satrun Ls1 My Engine Light Is On And The Show Code P0300 My Fan Is Contantly Working Rmp Sounds High To Much Somke From Exhaust...