Poor Fuel Economy

[buzzboy]

Hi

I've recently purchased a R33 GTST S2. I'm currently getting about 200km to a tank which is pretty bad.

the previous owner had the car pretty worked up but now, after the RWC process, most of the power-making mods, mainly the high mount turbo, had to be removed but a number of items still remain incase I wanted to put all the stuff back on.

The 550cc injectors, HKS mid lift cams and the z32 AFM were left on and I'm still running the stock ECU. I think this might be messing with the ECU and the reason for the poor fuel economy but I just wanted to see if anyone else has another idea before I run out and get a PFC

Any ideas or suggestions would be appreciated.

Edited April 17, 2008 by buzzboy

[Medium Dave]

Yeah, you will be running hugely rich with those injectors on a stock ecu, especially with that afm grab a pfc and have it tuned, big difference.

[Proximity Motorsport]

hahah wtf standard ecu... Maybe try reset it. Turn car off, disconnect battery, pump brake pedal 5 times, then hold it for 5 seocnds, then pump a few times, reconnect battery and take it for a drive

[Howie]

The 550cc injectors, HKS mid lift cams and the z32 AFM were left on and I'm still running the stock ECU. I think this might be messing with the ECU and the reason for the poor fuel economy but I just wanted to see if anyone else has another idea before I run out and get a PFC

Yep I think you've just answered your own question there.