well my service engine soon light has come on a couple of times while cruising on the highway for an extended period of time and then either just goes off or goes off when i turn the car off and doesnt come back on until i get on the highway again. any ideas would help.
thanks

 

Hey dude. OK I think I had a simimlar problem with my 94 LT1. Couple of questions. Does the Fan come on while your driving? if it does And the CES light comes on. You have BLOWN a Fuse. Check the fues box under the hood and make sure your fuses are good to your FAN. DO NOT REMOVE THE INJECTORS Fuses. I had to learn the hard way. TOOK a while for my Computer to Catch up my timing. Try that and get back to me
LT1CST@aol.com
names CHris
ttt

 

I suggest you go to your local Autozone and let them see if they can pull the code--its free and will put you in the right direction-Dwayne

 

My SES light only seems to come on when the O2 sensors are bad.

 

im guessing a bad egr valve

 

Since your car is OBDI, Autozone won't be able to scan your car. The SES light could be a lot of things, I'd just find someone with scanning software or pay a shop to pull the code.

 

ok thanks for the help guys i will look into the fuse and autozone. the 02's are pretty new so i dont think that is it and i dont know how to check that but i will get back to yall
thanks
shaun

 

I worked at AutoZone for a while last year and they won,t be able to scan a 94 OBD1. You have to have a scanner to pull codes. I bought myself an Actron ScanTool and Software, now I can do it myself.

 

anything other than a response of "get it scanned" is a guess at best. Get it scanned or you may never find it.

That being said, when my EGR was disconnected the SES would go off and on like that, however thats just a function of the code itself. There will be other codes that do something similar