Question about 1996 BMW 318

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My tickover is lumpy on my bmw 1.8i how do i fix it

Posted by jonohall1988 on

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George Matthews

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Check to make sure the crank sensor is no knoed out of place or cracked. Could also be intake leak. Famous for that also

Posted on Jun 08, 2009

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Anonymous

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SOURCE: engine light on, sounds and feels like using lumpy petrol.

i have found 2 areas that cause issues such as you are reporting.
one is poor voltage. check the connection at the starter motor between the alternator and the battery.
the other and perhaps more likely is a wet ECU.

the ecu box is under the windshield on the passenger side, access under the hood. this are can get wet ad corrode an ECU.

remove the ecu, take the bottom plate off and clean any corri=oded and wet areas with alcohol and a tooth brush..be gentle.
i would look for a way of mounting the ecu so that it doesn't lay on a flat surface that gets wet...

Posted on Feb 04, 2010

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i have found 2 areas that cause issues such as you are reporting.
one is poor voltage. check the connection at the starter motor between the alternator and the battery.
the other and perhaps more likely is a wet ECU.

the ecu box is under the windshield on the passenger side, access under the hood. this are can get wet ad corrode an ECU.

remove the ecu, take the bottom plate off and clean any corri=oded and wet areas with alcohol and a tooth brush..be gentle.
i would look for a way of mounting the ecu so that it doesn't lay on a flat surface that gets wet...

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