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Guest Message by DevFuse
 

Tutorial info Visit support topic

  • Added on: Dec 17 2009 01:57 AM
  • Views: 432
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Engine fail to start

Posted by adhityaen on Dec 17 2009 01:57 AM
Again a handiwork for a mechanic to know about if an engine got struck and couldn't start. It's a example with Audi S2 car.

Quote

Initial symptoms

The car was brought to us on the back of a tow truck, the owner reported that after running faultlessly for some four months after a new distributor had been fitted, one morning, for no obvious reason, the car would not start. Some six months ago the top of the engine had been rebuilt as a result of damage caused by overheating. Other than that we have little history on the car. The owner seems sensible and is not the type to try to play with the car himself. As far as we can find out, all the information provided is true.

This car has a 2.3 litre (we think), 5 cylinder, 20-valve turbocharged engine with Bosch Motronic control with sequential injection and a relatively standard distributor. In standard form it develops about 275 bhp. The variation on the standard Bosch electronic distributor is that there is only one slot in the timing vane, which seems to vaguely align with number one cylinder.

Initial examination revealed that there was no ignition and no injector pulsing but the fuel pump relay was activated during cranking. I mention this because on this car the fuel pump supply also feeds part of the ignition circuit.

full detail at: http://www.picoauto....rials/audi.html
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