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Old Aug 28, 2003 | 05:45 PM
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JP's C4's Avatar
JP's C4
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Default rpm's

I guess this is already discussed many times but now it's me. I've just cleaned my trottlebody, had the MAF sensor removed and cleaned the connector. But when i start now, the rpm's go way up to 2000 rpm and then slow down to 900 and come up again to 1200 and stays there.

I know there is a routine to reset the stationairy rpm's but how? I have the Haynes and the shop manual, it should be written somewhere.

I have a '86 Convertible, no cat's, but a standard L98 engine. The rpm's where significant lower before the cleaning thing! Thanks in advance! :cry


[Modified by JP's C4, 11:49 PM 8/28/2003]
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Old Aug 29, 2003 | 07:24 AM
  #2  
Q1KSLVR's Avatar
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Default Re: rpm's (JP's C4)

The ECM made up for the clogged throttle plate. It learned where to set the IAC so it wouldn't stall.

Now that you cleaned it, the ECM will have to re-learn the new settings. Give it time, it'll learn.
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Old Aug 30, 2003 | 05:39 AM
  #3  
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Default Re: rpm's (Q1KSLVR)

Thnx! To cut that short i've disconected the battery and then adjusted the stop which was changed by the previous owner, now it runs like.... :crazy:
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Old Aug 31, 2003 | 10:50 PM
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From: Lebanon KY
Default Re: rpm's (JP's C4)

I know there is a routine to reset the stationairy rpm's but how? I have the Haynes and the shop manual, it should be written somewhere.
mine 86 was doing something similar to this after rebuilding it and putting it back in. i reset my iac and i believe it has fixed the problem. read this: http://forums.corvetteforum.com/zerothread?id=500854
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Old Sep 1, 2003 | 01:41 PM
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Default Re: rpm's (JP's C4)

There is a method to reset base idle on my site, link in my sig. below.
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