Missfire From Ht Coil - BMW Forum - BimmerWerkz.com
5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

 
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#1 (permalink) Old 02-11-2005, 01:01 PM
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Hi new here hope some one can help.
I have a 1988 530i e34 188k miles.
All new leads dizzy roter etc. But I have a missfire from the coil, Have had ecu checked came back ok also tried a new coil and still the same. new coil wouldn't fit though have they changed will I need to make a new bracket for it.
Any Ideas
Cheers
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#2 (permalink) Old 02-12-2005, 08:42 AM
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njtech is an unknown quantity at this point
what do you mean you have a misfire from the coil? Is the coil weak, does it produce enough spark? If you have a misfire situation, check the basics...vacuum leaks, good spark, injectors working. the older 530 have problems with the blocks being junk causing misfires and rough running.
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#3 (permalink) Old 02-16-2005, 10:02 AM
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Apogee is an unknown quantity at this point
Hi

Hope you have sorted your misfire. I have a 1998 523i SE, and developed a misfire which I thought was one of the coils. However, much more cheaply (!) the computer identified that it was a knock sensor. That is what we call them in the UK anyway. The car has several on the crank and elsewhere, if they go the timing and fuelling is set to a safe position, but the car will misfire under load.
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