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87 runs better ect disconnected . 700

posted by  Volm on  Sun Jul 25 23:33 CST 2010
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last visit: Sun Mar 25 06:48 CST 2012
[RELATED]

Ordered new ect can anyone explain this








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87 runs better ect disconnected . 700

posted by  Volm on  Mon Jul 26 22:11 CST 2010
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last visit: Sun Mar 25 06:48 CST 2012
[RELATED]

Before disconnecting ect rich running no power amm hall sensor pressure regulator good suppresion relay good








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87 runs better ect disconnected . 700

posted by  david hunter on  Mon Jul 26 08:46 CST 2010
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last visit: Mon Jun 30 22:10 CST 2014
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ECT? Coolant temperature sensor?
Disconnecting it when engine is warmed up would normally result in stalling, very rough idle, smoke from exhaust. The computer would assume cold engine and enrich the mixture. Diconnecting when cold may result in a minor performance change but as it warms up the above would apply.

Your diagnososis may not be correct.

What are you trying to fix?

--
David Hunter








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87 runs better ect disconnected . 700

posted by  barnkat on  Mon Jul 26 03:19 CST 2010
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last visit: Fri Oct 21 14:45 CST 2011
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Do not assume that the ect is faulty from simply disconnecting it. Do you have an ohm meter? Follow the tests for your sensors in the faq:

http://www.brickboard.com/FAQ/700-900/EngineSensors.htm

The values for the ect are near the top of the page. Sometimes disconnecting a sensor that is not faulty will cause the car to improve slightly. The only way to know for sure is create a checklist and eliminate problems by testing.

Have you cleaned ALL the grounds yet?

http://www.brickboard.com/FAQ/700-900/ElectricalCircuitsRelays.htm#MaintainingChassisGrounds






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