Hello, I have a 1987 325e automatic with the motronic 1.0 engine management system. I have replaced a bunch of parts in the 4 months Ive had it.
Parts: Distributor cap and rotor, spark plugs and wires, ICV and ICM, fuel filter, inline fuel pump, FPR, air filter, intake boot, valve cover vent hose, cleaned and ohm tested TPS.
The car now runs a lot better but still has an intermittent issue that has me stumped. The car runs great and then it will run like crap off and on regardless of whether I'm accelerating or driving with my foot on the accelerator at the same spot. It feels sluggish and the car is being held back (insert jokes about etas being slow here) slower then usual I guess haha. But during this time it will not rev over 2500rpm unless I put it to the floor then it only goes to about 3500rpm. I also noticed that the econometer will only go no higher then 18L/100km and when my foot is off the gas the L/100km drops to 0 regardless of speed when running normally it stays above 4 or 5 with my foot off the gas (actually dont know if that's normal?)
It will also run like crap, best way to describe it is like a drag car sounds when idling, like the is firing delayed a lot, the idle is low and kind of surges. It stops doing this when I give it gas to get it above about 1k rpms. Going slow causes the car to surge too. I can't put it in reverse without the car stalling out either unless I give it gas and hold it there. ONLY when the car is doing this do I hear a clunking underneath as well.
Really not sure what is going on or where to go from here any help would be great thanks! Its long too so I can clarify anything further if needed.
Jake
Parts: Distributor cap and rotor, spark plugs and wires, ICV and ICM, fuel filter, inline fuel pump, FPR, air filter, intake boot, valve cover vent hose, cleaned and ohm tested TPS.
The car now runs a lot better but still has an intermittent issue that has me stumped. The car runs great and then it will run like crap off and on regardless of whether I'm accelerating or driving with my foot on the accelerator at the same spot. It feels sluggish and the car is being held back (insert jokes about etas being slow here) slower then usual I guess haha. But during this time it will not rev over 2500rpm unless I put it to the floor then it only goes to about 3500rpm. I also noticed that the econometer will only go no higher then 18L/100km and when my foot is off the gas the L/100km drops to 0 regardless of speed when running normally it stays above 4 or 5 with my foot off the gas (actually dont know if that's normal?)
It will also run like crap, best way to describe it is like a drag car sounds when idling, like the is firing delayed a lot, the idle is low and kind of surges. It stops doing this when I give it gas to get it above about 1k rpms. Going slow causes the car to surge too. I can't put it in reverse without the car stalling out either unless I give it gas and hold it there. ONLY when the car is doing this do I hear a clunking underneath as well.
Really not sure what is going on or where to go from here any help would be great thanks! Its long too so I can clarify anything further if needed.
Jake
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