Burnt a program now hunts for idle

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Aug 25, 2015 | 10:44 AM

Billygoatkid

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From: Steinbach

Burnt a program now hunts for idle

Hi,
So I used a modified abtp bin and noticed after it warmed up the idle was hunting to point where car just stalls. I them loaded a stock abtp bin and it does the same thing. Is it possible after I reset and disconnect the battery that the ecu needs to learn once in closed loop? I disconnect the battery after loading in a new bin. Thx

Aug 25, 2015 | 05:25 PM

DanielRicany

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Try setting the timing to 20.04 degrees at all areas of 400, 800, and 1000 RPMs in the tune. Set initial to 6 degrees in the tune, and make sure your distributor is at 6 degrees base timing.

Aug 25, 2015 | 05:39 PM

Billygoatkid

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From: Steinbach

Ok thx I'll try that. Yes my base timing is set at 6'.

Aug 31, 2015 | 10:35 AM

Billygoatkid

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From: Steinbach

Quote:

Originally Posted by Billygoatkid

Ok thx I'll try that. Yes my base timing is set at 6'.

So it was my O2 sensor which the wire had melted against the exhaust.
That issue fixed yay

Nov 18, 2015 | 01:03 PM

THE 383 admiral

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Quote:

Originally Posted by DanielRicany

Try setting the timing to 20.04 degrees at all areas of 400, 800, and 1000 RPMs in the tune. Set initial to 6 degrees in the tune, and make sure your distributor is at 6 degrees base timing.

perfect advice. 20 Deg 800 & below. 1000 should start at 32 up to 36 then taper back down to 20 Deg at WOT.
Also update your target Idle RPM. GM Loved to stagger this idle per temp. Match your RPM lets say from 32 deg C Through 116 deg C @ 650 OR 700 your Preference.

Last edited by THE 383 admiral; Nov 18, 2015 at 04:36 PM.

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