help.
does an m20 have cold start valve or something like it.
because my 325i is kinda kangarooing when its cold.
its ok under accelleration.
but jumps when im letting of the gas
very similar to when you leave the car in a higher gear to long
ok when warmed up though.
325i kangaroos
Moderator: martauto
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George_Of_The_Jungle
- E30 Zone Regular
- Posts: 637
- Joined: Mon Sep 11, 2006 11:00 pm
- Location: Daventry
i had a similar problem
have a look at you air intake system, if the pipe after the air box, but before the throttle body is perished, with holes all over the place...... fairly common fault, the engine suck more air through, by-passing the air flow sensor, ECU freaks out, coz gets a different air fuel mix to what it expects.
If this has happened, a tempory fix - ducktape the bu**er, or get a new one from BMW £15
It could also be that the auto idle valve is sticking, this is conneted to the above ^ pipe, and also goes into the throttle body, gentle persuasion with a hammer, or taking out and cleaning can some times work.
have a look at you air intake system, if the pipe after the air box, but before the throttle body is perished, with holes all over the place...... fairly common fault, the engine suck more air through, by-passing the air flow sensor, ECU freaks out, coz gets a different air fuel mix to what it expects.
If this has happened, a tempory fix - ducktape the bu**er, or get a new one from BMW £15
It could also be that the auto idle valve is sticking, this is conneted to the above ^ pipe, and also goes into the throttle body, gentle persuasion with a hammer, or taking out and cleaning can some times work.
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diamondblacke28
- E30 Zone Newbie
- Posts: 150
- Joined: Sun Jul 24, 2005 11:00 pm
george the intake tube is new and have already cleaned out the idle control valve.
thanks
thanks
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billgatese30
- E30 Zone Team Member
- Posts: 10989
- Joined: Sun Jan 09, 2005 11:00 pm
- Location: Tyne & Wear
i've moved this to tech help seeing as its a technical query
and i would say that you had an air leak on the induction side of the engine
check all the rubber hoses from the air box to the throttle body as has been said above, failing that it could be the intake manifold gasket, most li.ey to be this if it dissapears when hot as the manifold may expand and help close up the gap
and i would say that you had an air leak on the induction side of the engine
check all the rubber hoses from the air box to the throttle body as has been said above, failing that it could be the intake manifold gasket, most li.ey to be this if it dissapears when hot as the manifold may expand and help close up the gap
