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Misfire and knock count
Posted: Fri Apr 19, 2019 8:38 pm
by Lowfg2
I just installed ktuner base map on my stock 2009 si. After a test drive it’s reading misfires in all cylinders as well as a high knock count. Any ideas as to what the problem is? Thank you
Re: Misfire and knock count
Posted: Fri Apr 19, 2019 9:00 pm
by KTuner
As mentioned in the description for the tune, you likely have an intake that's throwing fueling off. Talk to a tuner.
Re: Misfire and knock count
Posted: Fri Apr 19, 2019 9:13 pm
by Lowfg2
KTuner wrote:As mentioned in the description for the tune, you likely have an intake that's throwing fueling off. Talk to a tuner.
Would it be safe to run for now
Re: Misfire and knock count
Posted: Fri Apr 19, 2019 9:40 pm
by KTuner
With factory or properly designed intake for MAF, sure. With the majority of the intakes out there, probably not without switching to the speed density option and consulting a tuner.
Re: Misfire and knock count
Posted: Fri Apr 19, 2019 11:29 pm
by Lowfg2
KTuner wrote:With factory or properly designed intake for MAF, sure. With the majority of the intakes out there, probably not without switching to the speed density option and consulting a tuner.
Assumed it is factory intake as it’s still covered by the intake box but I will check. So for the time being is it ok to run on the speed density tune or must I get it tuned immediately?
Re: Misfire and knock count
Posted: Sun Apr 21, 2019 4:07 pm
by KTuner
I'd recommend getting it tuned right away.