1984 C4 Need HELP CHECK ENGINE LIGHT
Thread Starter
Instructor
Joined: May 2004
Posts: 114
Likes: 0
From: Dublin Ca
1984 C4 Need HELP CHECK ENGINE LIGHT
All I have a bit of a problem with a 1984 corvette. We just picked the car up for my little sister and when we went to go get it smoged the check engine light doesn't come on when you turn the key on. Not sure what is going on. Not sure what to check first or if there is any known issues on the 84's.
Thanks
Thanks
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
Originally Posted by All2kool
It was probably purposely disconnected. Most states will not pass your car with a SES light on - even if the car passes. I'd get the car smogged first, then address the light issue.
Drifting
Joined: Oct 2006
Posts: 1,694
Likes: 0
From: Beaverton Oregon
Originally Posted by toptechx6
I'd agree with this at least in part but think a smarter choice would be to get the light working so you can extract codes, they may help diagnose the root failure. If you have a scan tool then you could bypass fixing the light since it would not be needed to read failure codes but it will need to work before it will pass inspection any way as mentioned above.
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Thread Starter
Instructor
Joined: May 2004
Posts: 114
Likes: 0
From: Dublin Ca
The bulb is good
Well the bulb is good but it doesn't light up. It passes out the pipe so I just need to get the light to come on. Is their a common problem with the wireing hariness or plugs I can check? Were is the harness located.
Thanks
Thanks
Melting Slicks
Joined: Mar 1999
Posts: 2,830
Likes: 20
From: Las Vegas Nevada
The wire to the SES light comes directly from the ECU. I will have to check my wiring diagrams but If memory serves me correct (and sometimes it doesn't) **believe** it is either tan or tan/brown.
If no one else chimes in I can check this evening.
If no one else chimes in I can check this evening.
Pro
Joined: Aug 2004
Posts: 623
Likes: 1
Originally Posted by VtVette
The wire to the SES light comes directly from the ECU. I will have to check my wiring diagrams but If memory serves me correct (and sometimes it doesn't) **believe** it is either tan or tan/brown.
If no one else chimes in I can check this evening.
If no one else chimes in I can check this evening.
Last edited by lefoy84; Nov 5, 2006 at 02:15 PM.
