gpm89

Hi all, finally putting my engine back together to start it up when i found i have a green plug on my wiring loom and no where for it to go. Its a 86 S2 however its had a new engine. This engine does not have a knock sensor on the manifold however the loom has the plug for it. (And its a 2 piece S2 manifold) Ive been reading and i believe i need to change my ECU to allow the car to run wihout a knock sensor? Only problem is my ECU has no stickers on it so im not sure which one i have. How do you identify which one it is without stickers? And finally i have a white round plug on my loom with nowhere for it to go. Does anyone no what this is for?

Thanks
Graham

tasos77

iTrader: (4)

buy a knock senson and put it into your loom. I did this in mine and works fine! Same as yours, green plug in my loom but no hole to the inlet....

gpm89

Ok, what would happen if i didnt fit one? Also do u know what the white plug is for? Its the same shape as the temeprature sensor on the charge carrier and the plug on the thermostat

tasos77

iTrader: (4)

If your ecu has the knocking option, with out knock sensor will reading that your engine is knocking... After fitting it in mine i thought that my car was ''flying''...! The white is for inlet temps. The fan switch has an other colour, i can't remember it now. Make a search with the word ''sensor'' and you will find everything you need!