Hi,
I have a Honda Civic Coupe 1.6 LS S reg (1999?) and for a year now it has struggled to start after being left out in prolonged rain. Twice this year after being in constant rain all day it has failed to start, it sounds like I get a spark but it cannot start. On both occasions I have opened the bonnet and sprayed WD40 on all the wires and the spark plugs, and then it starts. It does, however, judder at low revs (1000) and threaten to conk out until the engine reaches normal temp.

Sometimes when it starts in the morning, until the engine reaches normal temp it will judder while driving and I get no acceleration when pulling away from a junction, like I have a brick under the gas pedal.

Three garages looked and found nothing wrong..........PLEASE HELP. Is it a ditributor cap problem?

Thanks,
Steven