Hello chaps, i have a problem with my 94 wrx which has a full performance exzaust on it. The car in the mornings misfires and seems like its running out of fuel or even sumtimes it seems the car does not know at what rev it should be whilst idleing !!

My mate has said something abount sum sensors which sit on my exzaust??? may not have been reconnected or even removed??

When the car warms up it does seem to get a bit better but even at this point the engine seems very shakey as if reving up and then down!!

Can someone recommend what needs to be done or maybe a garage that can fix this in the oxfordshire area??

any help or advise would be more thank welcome thanks

Sounds very much like the MAF is not correctly connected.
This is bolted onto the Airbox on the inlet pipe to the turbo.

Rob

thanks rob

If not check your Lambda sensor, this is located in your exhaust manifold. It plugs into the loom just under the Header tank, right by the top rad hose.

Rob

to be honest, if it was the MAF disconnected it will not run at all.