My classic has always been temperemental cold starting. Its always OK if you turn over and then give some throttle as it just picks up and you keep it reving then slowly drop down 550 RPM.It will not idle properly for about 1.5 mins until the Ecu brings up the revs from 550 to 1000 Rpm ? ?. Sometimes I get it wrong and it dies , it will not re-start and often I have had to tow start it, the plugs are wet.Removing ang cleaning the plugsdoes not help much.I have fited a new Idle valve, Coolant sensor and battery.No vacuum leaks. The idle valve does not seem to be fully open on starting , its about 4mm open is this normal?.Could the throttle potentiomer , throttle flap flowmeter be causing the problem
classic kev
Well-Known Member
Get over to the V8 section and do a search. Throttle pot is a contender but so are a lot of other things.
