I have to fix an issue with my car, 2 times my car "2.2 SC" have been left out in the rain and both times that resulted in electrical problems.
After it have been out in the rain the throttle respons is wonky, I can usually run the car for a couple km then the EML turns on and the throttle stops responding "at all", car otherwise runs good.
Codes that is shown are: 1635 "5V ref circ" and 1271 "Acc pedal pos sens 1-2 correlation".
What i have done to fix it is to spray contact spray on blue and brown connectors behind expansion tank and also on the connector for the ignition coil rail, check all fuses and remove codes. It took some tries before it was ok again.
I have not been able to spray inside the connectors on the pedalposition sensor nor the throttle position sensor due to me not being able to open the connectors.
Clearly there is something on the car that dont like water, what could it be?
I am thinking that it could be the following, coil rail connector, EGR cheater, blue connector behind expansion tank, the three relays in the trunk?
Seems dry in the front, a bit water in the passenger compartment on the sills "leaks in the top corners on the windscreen" and of course that bonnet is not especially rain proof.
Anyone have had the same problem and found the source to it?