Question about 1993 BMW 3 Series
I have a 93 320i ,no spark on #1,new coil still no spark,checked power at coil plug i have power on one pin ground on middle pin and solid ground on third pin .third pin should be flashing ground,what could be the issue?
If it's only one cylinder that's not firing it's more likely that the HT lead (or spark plug wire, depending where you come from) is open circuit. Try replacing the leads before you go any further, hopefully that will solve your problem. You can test the lead resistance with an ohmmeter (allow for max 12000 ohms per 12 inches), but the problem could be that the lead is shorting to earth somewhere, which won't show up with a resistance test.
Hope this helps,
Posted on Nov 05, 2008
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Posted on Jan 02, 2017
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