Quote:
Originally Posted by ROLLGUY
How exactly would I check that system? I just got through replacing the MAS unit with a wrecking yard one (I assume it is good), and the car still will not start. That makes me believe that the original one is fine. Again, it wants to start and run a little, but only for a second or two. If the relay is not getting the proper signal after start, what would cause this to happen? Is there an easy test I can do?
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1) Are both pumps running? Remove MAS, jumper pump sockets, check that both pumps run.
2) If both pumps run, install MAS, run long jumper from battery to pumps, try engine start. If engine will now run, suspect either a fault in connections of the run-trigger signal [called TD], or a lack of that signal from the ignition controller [EZL]. If the engine runs, does the tachometer work? The tach is driven by the TD signal.