On Thu, 6 Sep 2007 11:30:08 UTC, codifus <codifus@[EMAIL PROTECTED]
>
wrote:
> When the coolant temp sensor is faulty, the engine computer thinks the
> car is cold when it's not. Because of that the computer will adjust
> the feul maps and make the car run rich.
> Running rich leads to bad gas mileage, lower power, and perhaps even
> un-relaible low rpm operation.
> You may have noticed it already. Is your temp gage slightly low? Car
> doesn't quite feel as powerful as it used to?
>
> Change the coolant temp sensor. Once you do, it may take 2 or 3
> tankfulls for the car to re-adjust to the new readings.
>
> CD
>
Thank you for your answer, codifus.
After I cleaned the Crankshaft Position Sensor Reference and Injector
Sub-Harness Connector, I drove several days with the Check Engine
Light off. It turned on again. However, I did not notice any engine
hiccup.
With an OBD-II reader, I got P0155, Engine Coolant Temperature
Circuit, and P0400, Exhaust Gas Recirculation.
I had cleared the Engine Coolant Temperature Sensor as a culprit
because neither the ambient temperature nor the engine temperature
seemed to have any effect on the engine hiccups.
Could you tell me where this sensor is located and what value it has
when the engine is cold (betweeen 10C and 25C)?
Thanks again, codifus.
--
Jean Castonguay
lectrocommande Pascal
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