Stumbles at WOT

K-Series Programmable ECU installation questions / support issues
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E-Pro
Posts: 1
Joined: Mon Oct 11, 2010 7:29 pm

Stumbles at WOT

Post by E-Pro »

A friend's car has problems where it seems to run into a wall when going WOT. I've attached a quick data log and the A/F ratios look really strange. The 02 sensor and the TPS also seem to be reading 0 a lot, might that be the source of the problem?
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Floppie
Posts: 71
Joined: Thu Mar 18, 2010 11:11 pm
Location: Philadelphia, PA
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Post by Floppie »

If the TPS is reading 0, the ECU thinks you have your foot off the gas and goes into fuel cutoff mode. Either the TPS is shot or the wiring's screwed up - fixing that will probably resolve the problem.
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kb58
Posts: 81
Joined: Sat Nov 28, 2009 2:53 pm

Re: Stumbles at WOT

Post by kb58 »

E-Pro wrote:The 02 sensor and the TPS also seem to be reading 0 a lot, might that be the source of the problem?
Well, if you were the ECU, running the engine hard, and then the throttle plate position read zero, what would you do? You'd kill all fuel except just enough to make it idle.
Mid-engine K24 turbo Locost, http://www.midlana.com
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