SES Light Keeps Coming On!
#1
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I recently bought a 1998 Z28. the first week I had it, I was getting on it a bit, and the ses light came on. I took it to a local mechanic because I needed to get brakes done and a few other things and they pulled the codes. They said I needed number one and number two O2 sensors, so I had them replaced. Well I left there and the light came on again. I have been back for them to pull the codes and turn it off for me. They showed me and it said the the #1 and #2 sensors are reading low voltage. Anyway, they said drive with it on for a couple more days with the new O2 sensors and then come back. Well I was driving yesterday and it went off for about 15 minutes, and then popped back on!! So I was wondering if anyone else out there has had the same problem and what the remedy is? The mechanics said it could be a faulty wire... Any input would be appreciated, Thanks!
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Update: 5/9/09:
Light seems has went out on its own for two days, then came back on when I hit 4000 RPM in 3rd gear. Then went out a day and a half later, only to come back on when I hit 90mph in 4th gear. It has now gone back out after driving a little bit. I have not been able to have the codes pulled, but I believe it would read the same codes regarding low voltage to the number one and number two sensors.... This is odd
__________________________________________________ __________________________________________________ ____________________________
Update: 5/9/09:
Light seems has went out on its own for two days, then came back on when I hit 4000 RPM in 3rd gear. Then went out a day and a half later, only to come back on when I hit 90mph in 4th gear. It has now gone back out after driving a little bit. I have not been able to have the codes pulled, but I believe it would read the same codes regarding low voltage to the number one and number two sensors.... This is odd
Last edited by RocksZ; 05-09-2009 at 09:16 PM. Reason: UPDATE
#4
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they didnt fix the problem. nore did they patch it. u have a voltage problem like they said. try to follow the O2 SENSOR wires. they might be pinched somewhere causing a short somewhere. try to find a schmatic of the wire that feeds both of the o2 sensors. its almost impossible for 2-o2 sensors to take a ****. ur vehicle does prob drive well. with the light off. when the light comes on ur fuel/air ration goes to ****. meaning prob something in the 10mpg area LOL
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