Question about 1996 BMW 318

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NO spark on coils 2+3 when cranking.

BMW 316i 1.6 1995. is there any geniuses out there,This car defies logic.When cranking there is no spark from coils 2+3 but 1+4 are fine,the car starts on two cylinders (eventualy),soon as you release the key all 4 coils spring to life an the car runs perfect. Changed Crank sensor, cam sensor,coil pack and ECU. (and starter motor after burning one out)My local Auto Electricians charged me £115 to tell me they couldnt fix it either.

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Try switching the coils around to see if that makes a difference in the way it fires.

Posted on Jan 20, 2009

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Double check the ground. Make sure that the negative terminal on the battery is clean and tight and that the ground onto the engine is not corroded. Now make sure that the coil is getting proper power. Is power coming out of the coil and into the distributor. Remove the distributor cap and rotor and look for any signs of arcing (burned spots) under the rotor. Is the electronic ignition burned out? Use a multi-meter to check the circuits here. Does electricity pass through? 


Posted on Jan 20, 2009

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Check the crank position sensor

Posted on Jan 20, 2009

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