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Boost control PWM issue

Posted: Thu Oct 09, 2014 1:48 am
by toanzh22a4
Hi

Was on the dyno getting tuned today and we noticed that when using the boost control option the PWM duty cycle was really high.

I'm using a Tial 38mm Wastegate external dump with a 7lb spring. When turning up the boost to 12psi, the PWM was around 71%.

Any reason for this? As we plan on moving it up to 18psi fairly soon.

P72 ecu with Hondata 3 port boost solenoid

Re: Boost control PWM issue

Posted: Thu Oct 09, 2014 6:30 am
by AREA876
Try setting the variable frequency to 32hz and set a lower boost cut and then test

Re: Boost control PWM issue

Posted: Thu Oct 09, 2014 6:24 pm
by toanzh22a4
thanks for the reply

Ill try it and see what happens