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Jan 5, 2013 | 10:01 AM

heyranch

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futuras

got a '96 F250 with a 460. When I start it cold it goes off fast idle too soon but will go back to fast idle when I put it in a drive gear. Put it back in nuteral or park and it slows down again. Any thoughts? Thanks

Jan 6, 2013 | 04:56 PM

rla2005

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Have you checked for codes as asked in your original thread ( https://www.ford-trucks.com/forums/1212250-futuras.html) ?

Jan 7, 2013 | 11:10 AM

heyranch

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Yes, 411 and 412

Jan 7, 2013 | 11:21 AM

rla2005

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From: Kentucky

Quote:

Originally Posted by heyranch

Yes, 411 and 412

DTC 411= Cannot control rpm during KOER low RPM check

DTC 412= Cannot control rpm during KOER high RPM check

Both of those codes are from the Key On Engine Running (KOER) tests. What codes do you get on the Key On Engine Off (KOEO) and Continuous Memory (CM) checks?

Jan 7, 2013 | 01:17 PM

DPDISXR4Ti

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futuras????

Jan 7, 2013 | 01:57 PM

heyranch

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Thanks for the reply. Unfortunately my battery went out right after that and I lost all codes. Do the codes I posted tell anything?

Jan 7, 2013 | 01:57 PM

White 97 xlt

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From: Cleveland, TN

Quote:

Originally Posted by DPDISXR4Ti

futuras????

I'm with you and about everyone else around here... What does futuras (whatever the hell that is) mean or have to do with this thread?

Curiosity KO'ed the feline!!

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Jan 7, 2013 | 02:03 PM

heyranch

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dpdisxruti

Your handle isdpdisxruti and you and you are confused by futuras?

Jan 7, 2013 | 02:10 PM

#10

White 97 xlt

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From: Cleveland, TN

Quote:

Originally Posted by heyranch

Your handle isdpdisxruti and you and you are confused by futuras?

If he used that in the SUBJECT line of a post it WOULD be confusing!!!!

Jan 7, 2013 | 03:23 PM

#11

rla2005

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From: Kentucky

Quote:

Originally Posted by heyranch

Thanks for the reply. Unfortunately my battery went out right after that and I lost all codes. Do the codes I posted tell anything?

Those codes do not really mean much at this point. It does indicate the computer cannot control the idle RPM via the IAC but this mimics what your initial problem statement is.

A common cause of those codes are a sticking/faulty IAC, vacuum leaks or a faulty PCM (computer). The last one listed is a very rare cause.

It would be more beneficial to run the KOEO tests and CM display.