sirtokesalot Posted April 3, 2015 Share Posted April 3, 2015 yay no more snow. I took the bmw out for the first time this year sinceit started snowing all in all things went well however i am experiencinga very rough idle seems like its missing at idle smells like rotteneggs and gas smell from the exhaust its so bad that when in gear thewhole car is shaking. Ive been looking over it for the last few hoursnow and found a vacuum leak witch i fixed but the idle is stillhorrible. it seems to drive fine when the rpm is up i can feel ahesitation/miss every so often while driving with light throttle input.what should i look at? the car is a 1987 bmw 528e running motronic 1.1 Link to comment Share on other sites More sharing options...
l75eya Posted April 3, 2015 Share Posted April 3, 2015 How long has it been sitting? Bad gas? Is that car carburetted or fuel injected? Link to comment Share on other sites More sharing options...
sirtokesalot Posted April 3, 2015 Author Share Posted April 3, 2015 its been sitting a few months it had no gas when i parked it and i put 30 bucks gas in it 2 days ago when i got it back on the road. it is fuel injected Link to comment Share on other sites More sharing options...
scrapperking Posted April 3, 2015 Share Posted April 3, 2015 IACV , idle air control valve , you can get one off of any 80's inline 6 e28/e30 Link to comment Share on other sites More sharing options...
sirtokesalot Posted April 3, 2015 Author Share Posted April 3, 2015 i believe it is working i took it off and cleaned it out the idle is not hunting just really choppy. if i unplug the iacv the idle starts fluctuating up and down when plugged in it evens out. Link to comment Share on other sites More sharing options...
sirtokesalot Posted April 5, 2015 Author Share Posted April 5, 2015 (edited) updates i changed the plugs because they looked really bad also put some lucas fuel injector cleaner int he tank it seems to run a little smoother now but idle is still way off i believe im hearing a backfire every so often through the intake. i checked the afm the flapper door is not stuck checked the coolant temp sensor by switching the plugs on the 2 sensors the car has one for the ecu and another one for the gauge both are the same. video shows fuel pressure and u can hear the way it is running. sorry for the poor quality my phone did not want to focus.the idle way going up and down on its own a bit. when i put the gauge down i was reaching for the throttle because the idle was getting too low and i thought it was going to stall. http://vid163.photobucket.com/albums/t290/estatesbburnin/20150405_124243_zpsld0hx3ve.mp4 Edited April 5, 2015 by sirtokesalot Link to comment Share on other sites More sharing options...
sirtokesalot Posted April 10, 2015 Author Share Posted April 10, 2015 so i took it to someone from a bmw forum yesterday and we detemined the o2 sensor was bad he gave me a sensor witch i chanegd and have to go back to him again to adjust the fuel mixture because its running rich Link to comment Share on other sites More sharing options...
sirtokesalot Posted April 19, 2015 Author Share Posted April 19, 2015 i believe i have solved the problem. i went andbought a cigar and blew the smoke into the intake until i saw smokecoming out around the injectors i went and got 6 new o-rings andinstalled them no more rough idling no more missing at idle the issue isgone. Link to comment Share on other sites More sharing options...
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