Lean at idle

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Nov 27, 2011 | 03:52 PM

ctmcamaro396

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Lean at idle

I have a 01 camaro with a 403 CID engine and at idle it is lean it wil max out my wide band lean and the engine will only idle at 500 rpm even thought it asking for 850 rpm I have efi live but not sure were to look to repair the problem also it stumbles right off of idle not sure about that either any help would be great

Nov 27, 2011 | 04:00 PM

edcmat-l1

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Sounds like it's in open loop (and the tune is out of whack). If you have EFIlive, read the tune out and post it. Post a data log too if you can.

Nov 27, 2011 | 07:51 PM

ctmcamaro396

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What part of the tune woul you need also how can I find out what terms like throttle cracker and things like that

Nov 27, 2011 | 08:55 PM

edcmat-l1

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Quote:

Originally Posted by ctmcamaro396

What part of the tune woul you need also how can I find out what terms like throttle cracker and things like that

Read out the tune, and attach it here. You can't break up the file. If you don't want to post it for whatever reason, you can email it to me. My email address is in my sig.

As for fiding out what all the terms mean, I would suggest reading the forum as much as you can. Use the search function and just search the terms, and see what comes up. There's too many of them to just start posting definitions of them all.

Throttle cracker is an IAC table that is enabled when the TPS is off zero, and it's purpose is to open the IAC valve, and then slowly close it based on time, and gently return the engine to idle.

Nov 28, 2011 | 05:27 AM

ctmcamaro396

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Were would thar info be I just got this efi live setup and am not that familiar with it I don't mean to be a pain just not sure what tables you need

Nov 28, 2011 | 06:08 AM

edcmat-l1

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Quote:

Originally Posted by ctmcamaro396

Were would thar info be I just got this efi live setup and am not that familiar with it I don't mean to be a pain just not sure what tables you need

I need the whole tune, not a specific table. Other than a screen shot, you cannot upload tables one at a time. The tune file is a file with .tun extension. Upload it here, or email it to me.

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