Check Engine Light
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Intermediate
Joined: Jan 2014
Posts: 36
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From: Jacksonville Florida
Check Engine Light
My check engine light came on while goosing throttle to get on interstate. Car ran rough and light did not blink. Stayed on. After getting home and restarting engine, light went out. 1985 C4 w/at.
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You need to find out what the code is, you can do this by stopping by most any auto parts store and they will check it for free or do a search here and see what pins to jump on the ALDL plug to read the code.
http://www.neilkline.com/Tech%20Tips/obdcodes.htm
post 4 has a link to codes
http://forums.corvetteforum.com/c4-g...-a-1985-a.html
http://www.neilkline.com/Tech%20Tips/obdcodes.htm
post 4 has a link to codes
http://forums.corvetteforum.com/c4-g...-a-1985-a.html
Last edited by FASTAZU; Jan 14, 2014 at 08:24 PM.
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Joined: Apr 2002
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From: Anaheim CA
Here's a link to a Forum post on error codes for all C4 years:
http://forums.corvetteforum.com/1576116036-post35.html
http://forums.corvetteforum.com/1576116036-post35.html
Thread Starter
Intermediate
Joined: Jan 2014
Posts: 36
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From: Jacksonville Florida
ERR Codes.
Thanks for the info. Much appreciated. I jumped A & B on ALDL and got the following err codes. 13, 33, 34, 43, 44. Could this be an oxygen sensor issue here?
First Corvette and don't want to throw a lot of $s replacing different sensors if not needed. 1985 AT w/54000 mi.
First Corvette and don't want to throw a lot of $s replacing different sensors if not needed. 1985 AT w/54000 mi.
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Joined: Apr 2002
Posts: 10,036
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From: Anaheim CA
Usually if you get a bunch of error codes it's because of bad grounds.
There is one main ground on the engine that everything ECM related goes to. On my car it's above the oil filter on the side of the block. I know in earlier years it was on the back of the driver's side head. I'm not sure if that was '84 only or '84 and '85.
There is one main ground on the engine that everything ECM related goes to. On my car it's above the oil filter on the side of the block. I know in earlier years it was on the back of the driver's side head. I'm not sure if that was '84 only or '84 and '85.
