High idle speed
High idle speed
My 528i has too high idle speed, when cold about 2300rpm, hot about 1300rpm. I have adjusted the ignition, co and the throttle damper. before this it was about 1500 when the engine was hot.
1975 525 (528i)
A picture would help given that it's probably something we didn't exactly get here, but I'll give it a try. False air. It's probably getting too much air from somewhere. There is the idle adjustment screw in the throttle body. That obviously lets more air in. There is a "test" adjustment screw up top on the linkage, that should have a gap and not affect things. Does the throttle linkage move freely, especially at closing? Vacuum hoses all good? If you have a dual diaphragm distributor does the retard side work at idle? Are the distributor vacuum hoses connected correctly?
Look at those things and let me know if it's still a problem.
Look at those things and let me know if it's still a problem.
Mike W.
02 525ita. Wife's, aka grocery getter
02 530i. New to the fleet, 3 pedals.
03 QX4, AKA the Datsun. Finally got the 4WD vacationmoble to stop smoking.
07 Xterra. Still on the DL, a purchase from hell.
02 525ita. Wife's, aka grocery getter
02 530i. New to the fleet, 3 pedals.
03 QX4, AKA the Datsun. Finally got the 4WD vacationmoble to stop smoking.
07 Xterra. Still on the DL, a purchase from hell.