While driving my car under light throttle will shift fine from 2nd to 3rd. Under Mid throttle is has a long delayed shift quick blink of 3rd on the dash and straight to 4th under WOT shifts fine 2nd to 3rd then to 4th. Just not understanding why I seems to skip over 3rd at mid throttle. Any Ideas anyone else experience this

 

Stock tune?

AUTO mode?

Rich

 

I belive base x tune and yes auto normal mode. Its an 09 RA with a x swap

 

It's likely due to the ECU's SST-related tables, then. They may have been edited in such a way as to affect throttle-related upshift decisions... probably with "more clutch pressure" in mind.

When it comes to those tables, it's all an interconnected web of fun getting SST tuning right.

Rich

 

Thank you for a little insight. I bought it used took the time to research all the parts on the car fixed a few. Upgraded a few. Can only guess it has an x base tune only because it runs without any CEL's or major problems car shifts great in sport auto and in manual mode just that weird second gear in auto normal. I planning on some exhaust a boost pill. Not sure if it has been changed or not best way to know for sure is just to change it myself. Think I will add a grimmspeed 3 port EBC. Add a 18psi actuator. Then get a real dyno tune so I know what is on the ECU myself. Should I or is there a need to upgrade the fuel system with whats to be done.




Plans for later on is a trans rebuild with a deep pan upgrade and clutches!!!! then some brakes and suspension. Then more POWER.