eervice engine light
Thread Starter
Team Owner
Joined: Sep 2001
Posts: 62,127
Likes: 1,727
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
eervice engine light
I have been driving all weekend on the highways and about halfway through my trips the "service engine soon" light has come on. This is during normal operation, highway speed, oil-205-210 and coolant -195F. My trips are about 90mi long and it only comes on on these long trips, not when i just go to the store or something. what could this be?
Racer
Joined: Jun 2001
Posts: 335
Likes: 0
From: MANTEO NC USA
Re: eervice engine light (bogus)
do you have a code tester. i know in my 86 my light comes on long trips it normally is a code 32 which deals with the egr. what you need do is get a code scanner and when the light comes on pull over and check it right then and see what comes up.
Advanced
Joined: Mar 2001
Posts: 59
Likes: 0
From: SILVER SPRING, MD USA
Re: eervice engine light (vader86)
I saw a post last week that mentioned this problem. In a nutshell, check the gas cap. A member had check the "codes" and had found nothing and another forum member advised to make sure the gas cap was tight. I have had a similar situation. I can go for weeks w/o seeing the SES and then about 20 minutes into the morning commute it will pop on. However, when I come out in the evening the light is not on when I start up. I have had the codes checked and everything else seems fine. Try the archives and see if you can find the post. :flag
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Safety Car
Joined: Jul 2001
Posts: 3,524
Likes: 1
From: Pinellas Florida Misfit
Cruise-In III Veteran
Re: eervice engine light (EU4RIC)
My 86 throws the code 32 on an occasional long trip with like said above is EGR related. You can use a paper clip to jump the a and b terminals on the diagnostic connect under the dash. Do this with the key in run posistion, but the car not started. Watch the SES light, it will flash a code 12- 3 times, then will start with any stored codes in your computer. Codes are read by long flashes followed by shorter ones.
Thread Starter
Team Owner
Joined: Sep 2001
Posts: 62,127
Likes: 1,727
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: eervice engine light (two-tone86)
how do you fix it if it is a code 32? change a sensor, i'll tighten the gas cap too.