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idle problem please help
Posted: Fri May 16, 2008 5:54 pm
by diamondblacke28
hello all.
my 1988 325i has a problem with the idle.
on tick over its surging up and down not loads.
ive replaced spark plugs,dizzy cap,rotor arm,coil,exhaust manifold gasket
i have a spare 173 ecu ive swaped and still the same.
any ideas are appreciated.
Re: idle problem please help
Posted: Fri May 16, 2008 5:58 pm
by sam325is
alot of people have a rough idle. Ultrasonic cleaning of injectros is the way forward.
Re: idle problem please help
Posted: Sat May 17, 2008 1:01 am
by siddiqi1
so igniton is running well then
Air leaks!
Spray some carb cleaner around the inlet manifold withthe engine running, any change in note will be heard via a dip in the engine.
Spray around the rocker cover; also check the condition of the pipe going from the rocker cover to the TB; is it blocked clean and tear free?
give the TB a good clean with some CARB cleaner after taking of the rubber boot to the TB, and also give the ICV a good clean
Report back after these and we shall go from there
Re: idle problem please help
Posted: Sat May 17, 2008 2:15 pm
by diamondblacke28
forgot to mention i have already cleaned the icv.
will try the others.