Japorter

Few questions regarding decreasing power on my car, i understand it could be difficult to determine the main cause, but i would like to hear few opinions.

The car has recently been on few rolling road sections, when it originally mapped by JGM it made 341/349, about 8 months ago, it produced 329/331 on Prosport roller, now about last week it only made 313/310, on scoobyclinic roller. I do understand the would be difference from roller to roller, but I see everyone making their figures, That really gonna thinking something is going wrong..what ever it is, it's getting worse and worse.. I have been struggling to understand what's the main cause of power lost. Car drives great and no smoke from turbo kicking etc etc. Service every 5k miles.

Car has a sport-cat turbo back, panel filter, walbro pump. Ecutek map..if anyone could share some light that would be appreciated.

Glowplug

iTrader: (8)

Go back to the original RR and see what you get. You may just be worrying about nothing.

happydude303

iTrader: (1)

oe even better get your mapper to go out with in the car a check it over if there is any thing not right im sure they will be able to point you in the right direction