josh1107

just picked up my 98 z28, so sweet, anyways, i had a inspection done on it and the service engine soon light didnt come on during the check. (key on, but engine not running), then did it again, same thing, one more try, ok it came on. check the owners manual and said it should come on every time. ive tried it a couple more times and havent been able to get it to come back on. i dont think it affects the car, but if it doesnt come on the im supposed to fail the inspection(aka no registration) please advise...

thanks
josh
ps-wasnt sure if this was the right forum, so let me know if it should go somewhere else

camaroextra

iTrader: (10)

is it stock? after i put my lid on it will come one for about 5 minutes a week then go away. 99% chance that its nothing

josh1107

as far as i can tell, stock. it doesnt come on when the car is running, its just supposed to when the key is in aux position(kinda like a self check)

thanks
josh

Ouchburns

Its very odd that your light would come on after installing a lid.

camaroextra

iTrader: (10)

yeah i know but im not too worried about it. i put the lid on 5 days after i bought it so its probably coincidental

Ouchburns

I would say so, what year is your car though?

camaroextra

iTrader: (10)

mine? 2002 38k currently (bought it with 31k)

2001NBMZ28

It should illuminate when you turn the key to RUN - not sure about ACC, never tried it. If it's not coming on at all an easy way to see if the bulb is working is to pull the AIR PUMP fuse - won't hurt anything and the SES should come on after a couple cold starts, and go back off after some more starts after replacing the fuse.

Edit: In ACC none of mine illuminate.

josh1107

sorry, not acc, but run im having this problem

CRAGER

Go to your local autoparts store and have it scanned. If they do not tell you what the code means look it up here:

https://ls1tech.com/forums/pcm-diagnostics-tuning/209783-need-lookup-ses-code-look-here.html


Peace,
Craig.

josh1107

no, what i am saying is the check engine light IS suppose to come on when the key is in run(car not running). mine did once, but hasnt since. so i know it isnt the bulb.

CRAGER

I understand you now. Just because the light came on "once" doesn't mean that you know for sure that it's not burnt out.

I'd say either change the bulb, or have somebody with a TECHII scan it.


Peace,
Craig.

josh1107

what would a tech11 scan yeild?

CRAGER

It can detect anything wrong with the car, it can even roll down your windows. Some speed shops have them, ask around to see if you can go in there and have them scan it.

Whenever you resolve this, post back up in here and let us know what had happened. It will help others out.


Peace,
Craig.

Kurt D

iTrader: (2)

Actually mine doesn't always come on either. When it's cooled down, it always seems to come on. Usually if the car is warm (restarted after only sitting a minute or two) my SES light won't come on in "run". This goes for my `02 M6 and my old `99 A4. I think it 100% normal. Neither car had any problems when scaned.

Kurt D

iTrader: (2)

On the issue with the SES light and lid:

On my `99 I damaged the air temp sensor when installing an SLP lid. It gave me the random SES lights until I got it to the dealership for warranty work (no scanner at the time).

josh1107

thanks for the info kurt, but if it's normal how do i explain that to the stupid emissions guy? he was ready to fail me, but luckily it came on the next try.

Kurt D

iTrader: (2)

I don't know there. I thought they just looked for codes on the ODBII scans. Try a different station?

CRAGER

OK, we have 2 lights we're talking about here now.

Which was it? The SES light, or CHECK ENGINE light? Big difference here.


Peace,
Craig.

josh1107

ses light