Hi all,
I've been trying to find a cure for a boost problem(car holding back above certain boost level). Hopefully fix it before Dragonball
I don't really recognize my problem in any FAQ's or Searches I've done.
problem:
Whenever I press the accelerator, after the initial boost-kick, then whenever the boost rises above (>0.5) bar the car holds back.
If I then feather the throttle at a certain level I can maintain boost ~0.5 and the car pulls ok. And switches to parallel mode fine.
However I can't let it boost higher or it will hold back on me. (doesn't feel like misfire, and no fault codes ).
car specifications(J-spec TT):
- Electronic boost controller (greddy profec-b)
- fcon-s piggyback
last changes
- changed exhaust to catback (first cat remaining)
- CW SMIC
1. Could these recent changes messed up tuning? (SMIC and Catback) problem didn't start then.
2. Can I safely try disconnecting the FCON piggyback and just try with the stock ECU?
3. Does anyone know what's going on here?
HELP