1041774
THIS SOUNDS JUST LIKE WHAT I HAVE GOING ON WITH MY 97 GRAND CHE. i HAVE REPLACED THE TPS BUT AM STILL HAVING THIS CHUGGING PROBLEM. DID THE O2 SENSORS FIX YOUR PROBLEM? PLEASE LET ME KNOW!
[addsig]
1042011
Knock on wood I have replaced both upstream and down stream o2 sensors and have not had any problem since. The check engine light went off after a few cycles of the keyand have not seen it since the sensor replacement. I am not ready to say this has solved the problem as it went away...