Saturn SL1 Emission

I Have An Obdii Code Of P0404 That Shows Regularly After Zeroing The Computer By Disconnecting The Battery. I Believe The Next Step Would Be...

1996 Saturn...didn't Pass Emissons Test...drove It A 3 Weeks And Tried Again. Sensors (3) Are Not Registering...what Do I Do Now? Cost?...

Whats The Best Way To Clean The Egr Valve On 1995 Saturn Twin Cam

I Failed The Smog Test Idling At 798rpm.... I Passed It At 2500 Rpm....i Changed My Oil Used Oil Additive And Fuel Additive...my Engine Was...

After Pulling The Codes Off My 94 Saturn Sl1 Sohc, It Came Up With Code 32 And 35, Which Are Erg System Fault And High Rev, Respectively....

An The Oil Was Dirty It Did Not Fail By Much Only A Little. Will Dirty Oil Cause A Car Not To Pass The Smog Test. I Change The Spark./wires...

Engine Performance Problem 1993 Saturn Sl1 4 Cyl Front Wheel Drive Manual I Have A Misfire Or Hesitation At Small Throttle Openings...