If this is not a good reason to check your plenums I don't know what is, hopefully we managed to save the ECU only time will tell, it could well have got damp inside, car is running ok at the moment.
Fingers crossed he may not have to search out the Guru ECU men, don't leave the plenums to long in this weather more rain on the way according to the news.
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This is how your pollen could look if its not looked after.
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