P CODES (POWERTRAIN) P0400 - P0499

On Code Po420 Cat. Converter, Does That Mean You Need To Replace Your Converter? Or Could Something Eles Be Wrong, I Hate To Spend Money On...

Just Had All Four 02 Sensors Replaced. Now, Though The Car Isn't Stalling, It's Running A Little Rough At Idle And Has A Little...

Changed Egr, Vac Solenoid, Feedback Sensor, Intake Gasket, Cleaned Intake And Throttle Body, Egr Reecirc Brass Tube, Hoses. Still...

Hi, My Questions Are Thus. I Want To Replace My Spark Plugs, And Oil Pressure Sensor, Which I'm Not Sure Where To Find Its...

Check Engine Light Came On, Code Given Was P0456. The Gas Cap Seemed A Little Loose I Replaced It. How Long Does It Take For The Light To...

Car Runs Fine, But Intermittently Stalling Every Couple Days. I Replaced The Purge Solenoid Valve And Small U-shaped Hose. The Car Ran...

My Daughter's Car Scanned It And Said Po452 Nvld Pressure Switch Stuck Closed. I Checked The Gas Cap And Looked Good. I Looked At Some...

I'm Getting A P0420 Code And Trying To See If Replacing The Sensor Helps.

Transmission Goes Into Limp Mode (second Gear) After It Warms Up Approximately A Twenty Five Mile Drive. Up To That Point It Shifts Great....

I Scanned The Car For Codes Due To My Check Engine Light Coming On And It Gave Me These Codes P0430 Twice, P0171, P0174 And P0300. I...