had a pfc for several years.

i know how to raise boost with the duty cycles.

i noticed lately that my boost is stuck in the stock 10-8-10 pattern even at max% duty cycle pri and sec.

what can i check/test?

thanks.

 

Mods?

 

standard bolt ons.

dp, mp, exhaust, intake, intercooler.

stock twins.

the 10-8-10 pattern works and it holds boost all the way to redline.

it just dosent want to go any higher no matter what i do with the duty cycles.

this is my second rx7 and i had a pfc in both to control boost on stock twins and i had them holding at 12psi.

it worked before on this rx7 for many years so i must be missing something simple to look at.

 

What are your exact settings in the PFC for boost control right now? Primary and secondary boost and duty values. Which option of the two do you have selected? Do you have a datalogit that you can use for logging? If you do, go out and and do a second gear (or 3rd if it's safe) and log Advance during that time. Then post the log and the map.