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  #1  
Old February 25th, 2007, 02:04 PM
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i did a search, ecu code help

"Code 14 - Coolant thermistor

Refer to test 14, continuity test procedure."

Just finished up a head gasket job and this is the code my engine is throwing, any ideas on what that might mean?
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  #2  
Old February 25th, 2007, 07:51 PM
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yep, it's most likely the coolant temp sensor. There are two in the truck on the intake manifold. This would be the one that threads in from the top, not the one that threads in from the front.

-Hans
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Old February 26th, 2007, 06:39 AM
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Quote:
Originally Posted by Hans
yep, it's most likely the coolant temp sensor. There are two in the truck on the intake manifold. This would be the one that threads in from the top, not the one that threads in from the front.

-Hans
interesting, i'll make sure the wiring is attached correctly.


I've noticed another problem though, after driving and getting the car warm when i come to a stop the car idles at ~2k, then after about 15 seconds it'll drop down to 1100 or so, i've tried adjusting the throttle cable a little, but would the code be thrown cause this issue?
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Old February 26th, 2007, 09:57 AM
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Quote:
Originally Posted by tkavan01
interesting, i'll make sure the wiring is attached correctly.


I've noticed another problem though, after driving and getting the car warm when i come to a stop the car idles at ~2k, then after about 15 seconds it'll drop down to 1100 or so, i've tried adjusting the throttle cable a little, but would the code be thrown cause this issue?
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Old February 27th, 2007, 12:50 PM
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If you've had the power disconnected lately, the RPM thing is actually normal and nothing to worry about. The computer just has to go through it's whole adaptive routine again to re-learn how your engine is performing. It will go away on its own eventually, but depending on how often you drive it may take a week or more.

-Hans
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Old February 27th, 2007, 01:35 PM
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Quote:
Originally Posted by Hans
If you've had the power disconnected lately, the RPM thing is actually normal and nothing to worry about. The computer just has to go through it's whole adaptive routine again to re-learn how your engine is performing. It will go away on its own eventually, but depending on how often you drive it may take a week or more.

-Hans
interesting, i did have the battery unplugged for 14 days, i'll keep that in mind... i'm still trying to trace down if i broke the cable, or if the sensor is bad, i'm leaning more towards broken wire though, i have to run a cunductivity test, also the engine is running a bit rough
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Old February 27th, 2007, 09:00 PM
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just as a follow-up to this problem, i spent a little time trying to figure out what was going on and it turns out that the sensor on the driver side front of the manifold and the fuel injector for the front cylinder on the driver side have the same wirinng harness clip style, needless to say my brother assembled the driver side and i did the passenger, not that i probably wouldn't have made the mistake, but i labeled my half everything runs great though!

ps, thanks for all the help guys
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Old February 27th, 2007, 10:57 PM
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Yep, now that I think back (and after you mentioned it), I remember being worried about the same thing when I did my head gaskets a couple years back. I ended up putting a red wire tie on the fuel rail sensor connector, and a blue one on the coolant sensor connector.

Glad it's all good now, and glad it didn't cost much to fix.

-Hans
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