ok so i can sort that tomorrow. The TPS calibration was with a warm engine wasn't it? i've seen also there's split opinion on wether to have the engine running or not when doing the calibration and if i remember right the PC instructions didn't specifiy either.

If my memory serves me right when i installed the pc it connected into the crank senor so i will look at the connections there first, are there any other likely areas to look at should everything check out?

would the pc read the rpm, if the circuit wasn't complete, i.e. the pc recieves the signal but somehow it isn't making it to the dash?