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Old Nov 30, 2012 | 02:16 PM
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farmer ford's Avatar
farmer ford
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From: Emmett, ID
gpr signal

where does the gpr get its hold signal from? the truck starts great even at 20 deg out. but 30 seconds after starting the gpr releases and the truck smokes terrible until warmed up. tis the season for gpr's and smoke i guess
 
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Old Nov 30, 2012 | 02:32 PM
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From: Ashland City, TN
GPR should stay on for 2 minutes at that temp.

Do you see the voltage gauge on the dash change?

The computer checks the engine oil temp sensor and adjusts accordingly to determine GPR on time and WTS time.

(I typed coolant temp like an idiot, thanks mike)
 

Last edited by Talyn; Nov 30, 2012 at 02:37 PM. Reason: fixed
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Old Nov 30, 2012 | 02:34 PM
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From: Livoina,La
PCM uses EOT for gpr time.
 
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Old Nov 30, 2012 | 02:36 PM
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From: Ashland City, TN
Originally Posted by fordpride
PCM uses EOT for gpr time.
Crap, thats what I meant. thanks.
 
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Old Dec 2, 2012 | 03:36 PM
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that makes good sense. thanks guys now i can chase down a few other leads. reps sent
 
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