P CODES (POWERTRAIN) P0400 - P0499 P0401

I Have A 2000 Vw Golf 1.4 L 16 V Engine Code Is Axp. There Is 60,000 Miles On The Car. I Currently Have A Fault Code P0401 Exhaust Gas...

1996 Mercury Cougar 4.6 V8 110000 Miles. What Problem Might I Have After P0401 Code Came Up?

Engine Performance Problem 2002 Ford Escape 6 Cyl Four Wheel Drive Automatic The Catalytic Converter Got Bad. It Was Taken Off After...

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...

I Have A Check Engine Light On Scanner Shows 401, Egr. Replaced It, Cleaned Out Tube, Changed Ecm, Had It On Diagnostics And They Said...

My Truck Has Been Giving Me Problems With This Code. It’s An Egr Valve. I Changed Out The Part It Says. I Cleaned Out The Throttle Body To...

I Get Intermittent P401 On My Grand Caravan (flex Fuel). It Comes On Then In A Day Or Two Disappears. Other Symptoms Are Erratic Idling...

I Bought This Van On Facebook And This Specific Code Has Been Giving Me A Headache. So Far I've Change The Egr Valve, Dpfe Sensor, And...

Vin 1fmdu32p2vua38455 Can Not Find Dpfe That Sends Code To Computer. All Suggestions Point To Replace Will Fix Problem. Does It Have One Or...

How Do I Replace The Egr Valve Located At The Back Of The Engine Near The Firewall? Does The Intake Maniflod Need To Be Pulled? The Manual...