My service engine light only comes on when I'm traveling on the freeway keeping a constant speed around 70. When I shut it off then start it up later the light doesn't come on until freeway driving again. It also doesn't come on while doing stop and go type driving. I know I can look the code up, but the problem is the car 5 hours away and only make it up about once a month to drive/work on it. If possible I'd like to buy the parts so I can get it fixed next time I head up there. Oh, it's a stock V6, 5 speed if that helps.

tm

To pull the codes you remove the black plastic thing around the lighter. That is where the ALDL connector is. Here is the link for getting them and understanding them. https://www.fiero.nl/cgi-bin/main.cgi?ECMCodes

Review the link that cadaver listed. My money is on error code 32.

I noticed the same thing on myn. My car is a 85 SE with a V6 and 4 speed manual. I found it doesnt come on at a specific time or speed but it mostly comes on after about 10min of 75mph. I havent had a chance to check out the code yet either.

------------------
'85 SE 4 Speed
----------------------
No Cat
Holley Scoup
Holley Throttle Body

99.9% sure its your EGR

------------------
Rich
97 Eclipse 17lbs. of boost on the Rad, Bad t-25
92 325i-- intake, exhaust, and suspension
White 86 SE V6-- WCF 2" drop springs, coil-overs, KYb's

I had the same type of condition,changed egr not fixed. Changed the EGR Solenoid everything fixed.

if you take off the EGR, id also remove the tube and make sure that that isnt clogged with carbon

------------------
Rich
97 Eclipse 17lbs. of boost on the Rad, Bad t-25
92 325i-- intake, exhaust, and suspension
White 86 SE V6-- WCF 2" drop springs, coil-overs, KYb's

I'd vote code 32 also. Anything is gonna be a guess, but 32 usually occurs about these speeds. Good luck!

Phil

------------------
87 FIERO GT 2.8 5spd
0-60 in 6.8 seconds!

Thanks for the help. Now I atleast have some kind of idea what could be wrong.