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BMW E28 5 Series 1982-1988 (528e, 533i, 535i, M535i, M5) Starter turns, but no spark!!


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sambmer

Posts: 32
Registered: 12/09/03
Starter turns, but no spark!!
Posted: Apr 20, 2012 8:27 PM
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This is the situation: 1985 528e (8/85). Checked the battery voltage (13.6V), pulled the injector to test the main relay, injector shows (voltage@ 13.5), also getting fuel at the fuel rail consistently. Fuel pump is running. Checked the reference sensor. Terminal 1&2 was 860 ohms, Terminal 1&3 was infinite, Terminal 2&3 was infinite also. The pin is intact on the flywheel, no damages. Therefore the reference sensor is able to read it. Checked speed sensor and the 1&2 terminal was 990 ohms, terminal 1&3 was infinite, terminal 2&3 was infinite on the speed sensor also. Checked the coil for voltage, voltage at coil shows 13.6 volts, checked primary resistance at coil was .7 ohms to .6 ohms, checked secondary resistance and was 5.76 ohms. Now this is what I need to know, why in the world can't I get any spark????? Pulled the spark plug after all of this, there is no spark at all.

Any help will be much appreciated.

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