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Registered
1990 Eldorado
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18 Posts
Discussion Starter #1
Help car runinng rich ECM thinks coolant temp is 95 coolant temp is 214 What do I do now? I'm lost
 

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Registered
94 Eldorado, and a 99 ETC
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3,887 Posts
It sounds like a failing temperature sensor. The more resistance the flow of electricity encounters, the colder the computer thinks it is. If you were to jump the two terminals on the temp sensor plug, the computer would think its overheating.
 

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2001 DTS, 2005 Mustang GT, 2010 MINI S
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1,121 Posts

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Registered
1990 Eldorado
Joined
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18 Posts
Discussion Starter #6
but in diag. mode the prom ids are different the ECM 1020 the BCM 9236 Help still if not more confused!!
 
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