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ECU car will not start

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Old May 4, 2011 | 07:51 PM
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Default ECU car will not start

My 1992 automatic SC400 will turn over strongly but will not start. I rebuild my ECU (replaced about 9 capacitors) and thought that had fixed the problem but after a day That proved not to be the fix. Help, any ideas?
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Old May 5, 2011 | 07:42 AM
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fuel, spark and compression are the three things needed to make the engine start and run...

spark is easy enough to check - pull a plug or two and simply watch...

fuel - perhaps a little harder, but, still not too terribly hard, I just don't recall on the SC how to check - I'm sure someone on here has a write up - typically you can just pull the fuel return line to make sure there is pressure in the system, or there may be a fuel pressure port on the fuel rail itself...

compression - well, even with bad compression it should still stumble and at least fire a little... unless the timing belt has snapped or slipped, you should have enough compression to get further than you are...

start with spark, no spark - check coils, check to see if the coils are even getting triggered...
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