mercredi 8 juillet 2015

E39 530i no-start after intake manifold removal

M54b30 engine.

So I removed my intake manifold to refresh the cooling and and oil vapor systems. The battery was disconnected for about 1 week while I removed the manifold and refreshed all the hoses, gaskets and seals. After everything was re-assembled it won't start.

Some clues:

-while the manifold was off I reconnected the battery to do some work on the stereo head unit. Pulled business and installed a new system. The ignition was briefly switched "on". Fuel hose was in a container.

-Degreaser was sprayed on the block and rinsed-off.

Troubleshooting:

-I verified that I have fuel pressure and purged the fuel rail of air.

-I verified that I have a crank signal at pin#8 of the ECU. Used an oscilloscope.

-All plugs are properly connected.

-Cranks strong but no spark.

What's my next step?


E39 530i no-start after intake manifold removal

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