C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Service ASR.........Need Help please

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Old Aug 21, 2001 | 10:47 AM
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Default Service ASR.........Need Help please

Ok, first thing this morning, right as I pull out of the garage, the service engine soon & service asr lights came on.
I drove around the block and noted that the security light was also flashing and the MPH gauge stayed on "0"
After a few minutes of idoling, the lights went off and I headed to work.
Of course about half way to work, the lights came back on, and right around 3K RPMS the car acts like its not getting any gas. As soon as I let off it drives fine. I babied it the rest of the way to work never getting over 3k rpms and made it luckily
What do these symptons sound like to you all?
James :conehead
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Old Aug 21, 2001 | 11:30 AM
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Default Re: Service ASR.........Need Help please (PotatoeHead)

I read somewhere else a few minutes ago that something like this could be related to the starter. Does that seem right to anyone? :confused:
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Old Aug 21, 2001 | 12:51 PM
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Default Re: Service ASR.........Need Help please (PotatoeHead)

What year car do you have?

David Fulcher
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Old Aug 21, 2001 | 01:42 PM
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Default Re: Service ASR.........Need Help please (David-F)

Sorry about that, it's a `93
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Old Aug 21, 2001 | 02:10 PM
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Default Re: Service ASR.........Need Help please (PotatoeHead)

Maybe your speed sensor is going out.. :confused: That is really odd. Did your mph come back after the lights went away??
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Old Aug 21, 2001 | 02:27 PM
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Default Re: Service ASR.........Need Help please (PotatoeHead)

Check the system voltage - this kind of thing has happened to me in other cars when the battery and/or alternator were on their way out.
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Old Aug 21, 2001 | 02:36 PM
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Default Re: Service ASR.........Need Help please (Glock'94)

Yep, once the lights went away the MPH showed my speed again.
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Old Aug 21, 2001 | 02:38 PM
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Default Re: Service ASR.........Need Help please (TravisD)

I think I'll check out the battery and alternator when I get home tonight
James :jester
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Old Aug 21, 2001 | 02:44 PM
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Default Re: Service ASR.........Need Help please (PotatoeHead)

Good idea.. what were your volt readings when this was happening?
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Old Aug 21, 2001 | 02:53 PM
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Default Re: Service ASR.........Need Help please (Glock'94)

14.2
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Old Aug 21, 2001 | 05:31 PM
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Default Re: Service ASR.........Need Help please (PotatoeHead)

Get a paper clip and jump the A to G terminals of the ALDL and turn the key on with out starting the engine and watch the speedo codes will come up there 1.1 CCM, 4.1 ECM, 9.1 ABS,ASR and let us know what you find.

David Fulcher
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Old Aug 21, 2001 | 05:40 PM
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Default Re: Service ASR.........Need Help please (David-F)

You lost me, A to G of the ALDL?

I'm not the most car savy person out here lol :confused:

Get a paper clip and jump the A to G terminals of the ALDL and turn the key on with out starting the engine and watch the speedo codes will come up there 1.1 CCM, 4.1 ECM, 9.1 ABS,ASR and let us know what you find.

David Fulcher
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Old Aug 21, 2001 | 05:48 PM
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Default Re: Service ASR.........Need Help please (PotatoeHead)

Ok, I was looking at http://members.tripod.com/theviperpit/vette/ecm.html
and now I know what you're talking about, however the above page says to short A & B together. Which one is it really? I don't wanna fry something by mistake :chevy
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Old Aug 21, 2001 | 06:56 PM
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Default Re: Service ASR.........Need Help please (PotatoeHead)

A to B will just flash the "Check Engine" light to give you ECM codes but A to G will activate the CCM on board diagnostic and give you all the codes and once you have learned how to use it you will be able to clear codes also pluse other things.

David Fulcher

P.S. I carry a A,B and A,H and a A,G key with me all the time you just never know when it may come in handy.
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Old Aug 21, 2001 | 07:07 PM
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Default Re: Service ASR.........Need Help please (David-F)

Dave, your a mad-man :lol:

I leave my paper clip in the console! :p:
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Old Aug 22, 2001 | 01:57 AM
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Default Re: Service ASR.........Need Help please (PotatoeHead)

Say PotatoeHead,

I am going through the same thing with my 92 corvette. The ASR light came on and my ride has the same symptoms as yours. Could you please shoot me a email when you have fixed the beast. I have been trying to repair it on my own and haven't had any luck. About to put it in the shop, but I will waite to hear from you.

Thanks
Greg
LT1CFORCE92@msn.com
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Old Aug 22, 2001 | 04:46 AM
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Default Re: Service ASR.........Need Help please (LT1CFORCE92)

I have a 93, and this is a TSB about the Throttle position sensor being a problem. I would disconnect the throttle position sensor, or the battery and clear the code, if you have one. Mine does this every once in a while, and at 117,000 miles, it stillis not an abs/asr problem, just a glitch in mine. Hope this helps, Steve
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Old Aug 22, 2001 | 09:11 PM
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Default Re: Service ASR.........Need Help please (David-F)

Finally got a chance to check the codes and heres what I got
1.
C41
1.
H41
1.
_ _ _
4.
ERR
9.
H72
9.
_ _ _
1.0
and then it stops
Anyone have a freaking clue what this means????
:confused:
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Old Aug 22, 2001 | 10:22 PM
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Default Re: Service ASR.........Need Help please (PotatoeHead)

Has anyone seen a place on the web where these codes are listed?
I've found a couple but their all for C5's...Does that matter?
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Old Aug 22, 2001 | 11:45 PM
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Default Re: Service ASR.........Happened to me once briefly

My Service ASR light came on briefly right after I started it, and stayed on for a little while. I shut the engine off with the car moving, and started it again with the car moving and it stayed off.


The ASR works like a charm and does its thing properly.\
-Dave.

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