Knock Retard in Open Loop
06-23-2005, 07:48 AM
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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?
06-23-2005, 02:59 PM
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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
06-24-2005, 07:09 AM
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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.
06-24-2005, 11:52 AM
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Originally Posted by 02sierraz71_5.3
I would tune your ve table and maf first then go from there
06-25-2005, 02:46 PM
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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
