98 Coupe with PO172 & PO175

Mark 84ltblu · 07-21-2005, 01:45 PM

After a computer tune at the Cruise In in May I'm suddenly getting these errors after driving 100 miles or so. The appear to be left and right engine bank running rich. I find it strange that they are just appearing now. They show both as current and history when the DIC throws the check engine light.

Is there a way to lean this out short of buying a tuning program. My tuner is 500 miles from here and I'm confident I can run the program if I need to buy it. Anyone have any recommendations or which program to buy?

boosted_z06 · 07-21-2005, 11:34 PM

The PCM does not trip a rich error until the fuel average is greater then -13.0 rich so the engine could have been rich since the tune was done and just now exceeded that amount.

Contact tc@tunercat.com their tuner product is only $380 and would allow you to tune 2 model years unlimted and updates are free, non of that so called support extra costs other tuning products force on you.