CC GSR Fuel gauge problem and misfiring problem

[Mike Jupp]

Installed a turbo light yesterday, easy enough job, worked great..
Then a little later i noticed the fuel gauge had risen much above what i know it should be..
Tried taking cluster out this morning, cleaning components, now it's dropped to the empty line, goes up a little then back to the line..
Daughter took car for a drive, noticed a significant loss of power and that the car would lurch/ misfire on letting off the accelerator..
Reset ECU, didn't work, have checked injectors, they are fine, no air leaks, no fuel leaks..
I'm worried i've managed to fry the ECU somehow, even though i did everything accordingly...


Any ideas guys??
Thanks

 

[vr401]

Spark plugs?

 

[khubner1]

my first port of call would be to isolate the new part ie disconnect the turbo light as the places you tapped in and see if the issue goes away if it does you've eliminated anything that was in the car as the fault and narrowed it down to the new bit you've put it.
if it does not fix then you would then move onto testing other things