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Old December 9th, 2016, 08:17
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old_man old_man is offline
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Re: MAP Sensor Questions of the Month

Input from the MAP is not used by a Renix era vehicle until the ECU goes closed loop. the only thing I can think is that it is shorting the 5v sensor supply from the ECU,

A Renix will at least attempt to fire without a good camshaft position sensor. If it gets lucky, and ECU syncs with the stroke the engine is on, you will not even see any difference.

Intermittent operation on a Renix can have a lot to do with the grounds. The one that I see go bad the most is the one from the driver's side rear of the head, up to the firewall (next to the head ground), followed by the grounds on the bolt holding the dipstick.
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Last edited by old_man; December 9th, 2016 at 08:58.
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