P CODES (POWERTRAIN) P0400 - P0499 P0442 Questions

Have A 2001 Toyota Avalon, Recently 2 Codes Pop On, P0440 And P0442, Tried To Erase 1 Time, But Comes Back On Again In A Couple Days. P0440...

Have An 04 Sunfire, Check Engine Light Keeps Coming On With The Code P0442. We Have Changed The Gas Cap And The Vent Valve, There Is No...

My 1998 Chevy Lumina Got Multiple Error Code ( P0305, P0135, And P0442) After Repair A Horn From A Dealer. After Repair I Only Have Run...

I Recently Changed Two Clogged Injectors And It Got Rid Of My Multiple Misfire (p0300). I Also Changed The Catalytic Converter And The P0420...

I Have A Po442 Code, I Took My Car In And They Fixed A Proportion Valve. And It Still Keeps Coming On As A Code Po442... Any Help????

Hello There, So I Noticed Few Months Ago The Obd Drive Cycle Was Not Done It Said One Incomplete And I Noticed It Said Catalyst, But A Code...

Engine Performance Problem 1997 Chevy Truck 6 Cyl Automatic I Have Taken My Pickup (97 Chevy Pickup 1500) No One Can Seem To Find Out...

Po442 Where Do I Look To Fix This Problem?

My 2003 Dodge Caravan Has The Engine Light On. The Codes Are Po442, Po 455, Po 456. I Had The Fuel Filter Changed Yesterday And My Car...

Engine Performance Problem 1999 Chevy Tahoe V8 Four Wheel Drive Automatic While Driving My Tahoe Last Night The Check Engine Light...