P CODES (POWERTRAIN)

The Mil Is Not On. Car Gets Lousy Gas Mileage (20-mpg At Best) Which Implies The Pcm May Be Operating On An Open Loop Circuit. I Put A...

Car Is Reading Code P1424, Which I Think Is The Maf Is Bad. I'm Trying To Find Out For Sure.

This Code Tells Me The Transmission Range Sensor Is Not Working Properly. The Only Problem I Am Having Is That I Have Called Everywhere And...

The Car Starts And Runs But Is Rough. A Code P0301 Is Stored. Ignition Spark Is Strong, New Plugs Were Installed And Are Confirmed Firing....

What Are Possible Problems With The Car Showing Error Code P0401?

I Have An Engine That Will Run And Then Trips Up And Won't Hold Idle, Etc And I Get These Codes: P0172 P0175 P2237 P2240 P0136 ...

My Truck Recently Showed A Code P0507 Idle Control System/motor Rpm Higher Than Normal. I’m Aware That The Acv Is In The Throttle Body As...

The Vehicle Previously Had Been Idling At 746-800 Rpms But After The Case Of Egr Valve Blockage That Lasted For 3 Months Before It Was...

I Have A Vacuum Leak! The Exhaust System Shakes And Rattles, But I Don't Hear Anything On The Cat! I Have Checked Everywhere Hoses...

Misfire At Idle And Up To About 2,000rpms. The Only Code Is P0300. First Time It Misfired When Going Up A Long Hill.