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Hello Sweden I just got my first BMW a 735 1988 looks grate and run good Until last week when I decide to bleed the brakes. This went well But when I started my Beemer the idle went MAD it osculated from 500 RPM To 1500 RPM!! I did do any to cause this did I ? Well I had to pick up the kids so left the garage When I put the car in drive the it osculation stopped at 1100 RPM and after a minuet It was down to 700 RPM or so. Shutting off the and starting it again it starts right up and the idle is steady at 700 RPM (no osculation any more in idle) On the freeway it osculated again at a constant power setting or when motor braking while leaving the freeway, but not as much. This can be reproduced every time. Freeway speed 110km Take foot off gas When speed drops down to 60km to fuel flow meter jumps from 0 to 1 litre and the And when I stop the idle is at 1100RPM for 20-30 seconds and then drops down to 650-700. One other thing I should mention Idle will remain a 650-700 RPM until I press the gas just a bit and it will jump up to 1100RPM What I have tested I have removed and cleaned the EGR valve I have tested Idles switch with a Ohm meter it seem to work (as a switch) Cold booted to onboard computer (removed the battery for a hour) This made the problem worse for about 20 minutes it osculated from 500 RPM To 1500 RPM as before ,it seem that there is a sensor somewhere That is bad and the onboard computer needs 20 minutes to compensate for this. (I think) Dose any one out there have any idea what should try next. Thanks | |
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Never heard of that behaviour before. Seems pretty serious to me. I would try to figure out what you could have affected when you worked on the brakes. There must be some cables or connections in that area of the enginecompartment. One can be quite clumsy with the tools sometimes. Its obviously have to do with the injection or enginecomputer. One of the relays maybe? Kartoffeln und sauerkraut - Jawohl! |
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