Knock Retard in Open Loop
Thread Starter
Teching In
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From: Surrey England
Knock Retard in Open Loop At open loop I get knock retard if the O2 sensors continue reading (at 1,000+). If the O2 sensors stop reading (blank field) then I do not get knock retard.
Anybody any idea why?
Anybody any idea why?
Originally Posted by UKDriver
At open loop I get knock retard if the O2 sensors continue reading (at 1,000+). If the O2 sensors stop reading (blank field) then I do not get knock retard.
Anybody any idea why?
Anybody any idea why?
Have you tried pulling timing
Thread Starter
Teching In
Joined: Jan 2004
Posts: 31
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From: Surrey England
Originally Posted by 02sierraz71_5.3
1000+ on narrowband your probably over fueling, do you have a wideband 02?
Have you tried pulling timing
Have you tried pulling timing
Before pulling timing (or anything else) I'm trying to figure out why sometimes the O2 sensors are reading in open loop and at other times they are not. Is there some other factor that's causing the inconsistency?
The fuel trims are positive before it goes into open loop, so lean.
Thread Starter
Teching In
Joined: Jan 2004
Posts: 31
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From: Surrey England
Originally Posted by 02sierraz71_5.3
I would tune your ve table and maf first then go from there
Originally Posted by UKDriver
Thanks for the advice, I'll give it a go. Bit concerned about your strap line - your gonna blow it up
