tallcoolone
New member
Every time I turn up AFPR(from 50 psi) to decrease Knock( under boost);(block Learn(140s) and integrator(110s)), knock retard goes 10 plus; new O2 sensor, chip, afpr, working fuel pump, new vacuum lines,no codes...Help?
What is going on?
- Thread starter tallcoolone
- Start date
tallcoolone
New member
Re: What is going on?
Integrator and Block Learn skyrocket 150 to 170s.
Integrator and Block Learn skyrocket 150 to 170s.
dgoodhue
BuSTeD 4.3
tallcoolone
New member
Re: What is going on?
I am willing to learn; based on what I metioned, how would you set AFPR or anything else for that matter?
I am willing to learn; based on what I metioned, how would you set AFPR or anything else for that matter?
turbodig
Active member
Re: What is going on?
Integrator isn't active under boost.
Integrator of 110 is rich, not lean.
BLM at 140 is maxing out lean, most likely.
Sounds to me like you have a chip that isn't properly programmed for the mods that you have, or that you have a fuel system issue. Turning up fuel pressure with a bad fuel pump will make the problem worse, not better.
Excessively rich mixtures will cause knock as well. Contrary to widely-spread myth, there's such a thing as too much fuel.
Without a wide-band o2, you don't have any real indication of whether you're rich or lean at WOT.
Integrator isn't active under boost.
Integrator of 110 is rich, not lean.
BLM at 140 is maxing out lean, most likely.
Sounds to me like you have a chip that isn't properly programmed for the mods that you have, or that you have a fuel system issue. Turning up fuel pressure with a bad fuel pump will make the problem worse, not better.
Excessively rich mixtures will cause knock as well. Contrary to widely-spread myth, there's such a thing as too much fuel.
Without a wide-band o2, you don't have any real indication of whether you're rich or lean at WOT.