======================It's a 1996 STS which invariably gives me a Emmision Control System message which triggers the check engine light to come on. It happens on acceleration .....any clues? Car runs great but this gets annoying.
===============================Pulled the codes but nothing revealing - I cleared the codes and will check again after the message re-appears. When the Emmision Control System message appears it also says EXP 104.....any idea what this is? I don't find this code in the long list of other codes.
-------------------------Okay, found EXP 104 message in the OM but it just says service emission system. The codes I pulled were all history codes:
I'm assuming that I might have some vacuum lines that need replacing as they are likely all original ?? The car runs great so I'm not overly concerned ...it is just getting annoying everytime I accelerate and have to clear the message. I'll pull the latest code that is generated tomorrow now that these others are cleared.
==========================Will try that. Thanks.
So new price $467.50 .....auto wrecker price $65.00 .....guess I'll be trying the auto wrecker!