90 L98 idle adjustment
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Instructor
Joined: Jan 2013
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From: Friendly WV
90 L98 idle adjustment
My 90 vert idles too fast. I found an article about setting the idle on pre 90s but it said the 90-96 has a non-adjustable idle. Surely not. Any help out there?
Safety Car
Joined: Jan 2004
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The TPS is not.The ECM takes the voltage it first sees as the baseline TPS voltage.
If you are really worried you can do what some do and slot the holes in the TPS to get adjustment like on the earlier cars
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Instructor
Joined: Jan 2013
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From: Friendly WV
I know nothing about GM and how they've evolved over the years. It may take me a while to catch on. I plan to clean the TB first and see what that does.
Race Director
Joined: Apr 2002
Posts: 10,036
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From: Anaheim CA
Do a minimum idle adjustment, except in your case you don't adjust the TPS. It's not adjustable in later years.
http://www.batee.com/corvette/dcrg/r...scuss_sim5.htm
http://www.batee.com/corvette/dcrg/r...scuss_sim5.htm
Le Mans Master
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From: WV
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Thread Starter
Instructor
Joined: Jan 2013
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From: Friendly WV
I had one for my Ramcharger and it was the best tool I had for it. I'll look. Great idea. You've all been a great help.
Safety Car
Joined: Jan 2004
Posts: 3,556
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Make sure you get the 2 book red cover set that includes the separate Elec section
http://www.ebay.com/itm/ORIGINAL-199...91633e&vxp=mtr
Also available cheaper in a Cd format
Thread Starter
Instructor
Joined: Jan 2013
Posts: 150
Likes: 6
From: Friendly WV
Make sure you get the 2 book red cover set that includes the separate Elec section
http://www.ebay.com/itm/ORIGINAL-199...91633e&vxp=mtr
Also available cheaper in a Cd format
Le Mans Master
Joined: Aug 2007
Posts: 8,735
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From: WV
Thread Starter
Instructor
Joined: Jan 2013
Posts: 150
Likes: 6
From: Friendly WV
I haven't addressed it yet. Everything I've read says to drive the car under normal conditions for 15min after doing a system reset. I just got plates yesterday and went back to work off long brake today. My father-in-law passed last week too. Just a lot going on. As soon as I do it I'll post up. I replaced several vac hoses too, it didn't help. I might be one I didn't change though.
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 413
From: WV
I haven't addressed it yet. Everything I've read says to drive the car under normal conditions for 15min after doing a system reset. I just got plates yesterday and went back to work off long brake today. My father-in-law passed last week too. Just a lot going on. As soon as I do it I'll post up. I replaced several vac hoses too, it didn't help. I might be one I didn't change though.
Thread Starter
Instructor
Joined: Jan 2013
Posts: 150
Likes: 6
From: Friendly WV
I think so too. It's not surging at all, very even, just a bit fast. I still want to get all the variables tied down before I do a reset. This car has a new computer too. I think that enters in, I'm just not sure how yet. One thing at a time.