P CODES (POWERTRAIN) P0400 - P0499

How Can I Repair A Code:secondary Air Injection Pump?What Tools Do I Need And Which Part Do I Only Buy?On My 1999 Saturn Sw 2. Thank You

When The Vehicle Is Idling, It Seems As If It Is Going To Stall Out. It Has Not Yet, But Has Come Close. I Have Checked The Gas Cap To...

These Codes Have Come Up On Car. The Car Will Not Shift Properly While Driving. What Do These Codes Mean And How Do I Fix The Problem?

I Have Already Replaced The Bank Two O2 Sensors And My Check Engine Light Has Been On For Weeks. I Used My Scan Tool In Live Data Mode To...

Service Engine Light Is On, The Code Is Po 455, Can I Still Drive It, Will Hurt Anything And Where Would I Start To Look For The Problem

Engine Performance Problem 1999 Chevy Suburban V8 Four Wheel Drive Automatic I Need To Know Which Sensor Is Bank 2, I Have 4 Sensors...

In The Morning It Starts Rough And Its Around 40 To 30 Degrees And Sometimes When Its Even 50+ Degrees Also The Idle Seems A Little Bit...

Hello, Check Engine Light Has Been Coming On And Turning Itself Off For The Last Few Months. It Is Steady, Not Blinking. I Was Told...

I Have A 1999 Mercury Sable Ls Vehicle. It Has 145,000 Kilometers. I Service It Regularly And It Is Not Due For A Tuneup, But Today The...

Would You Know What This Is That Is Not Working Or Needs Replaced?