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funinak
 
  2002 4.7 PCM reset, proper fuse #?? - Posted: 02-24-2008, 06:12 PM
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Post #1

I have searched for quite a while trying to find what fuse to pull in the underhood fusebox of my 2002 4.7 so I can reset the PCM. I tried #23 but the engine still turned over, I don't want mess anything up. Was the fuse # on the 2002's different? I KNOW the procedures, just want to pull the proper fuse. Can someone please indulge my ignorance for a moment. THANKS!
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eatsleepdrivesc
 
 Posted: 02-24-2008, 06:14 PM
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Post #2

Look on the top of the fuse box is the listing of all the fuses pull the one that says ECM/PCM that should do the trick
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funinak
 
 Posted: 02-24-2008, 06:25 PM
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Post #3

Quote:
Originally Posted by eatsleepdrivesc
Look on the top of the fuse box is the listing of all the fuses pull the one that says ECM/PCM that should do the trick
I was just out under the hood and found one labled ECM/SKIM #19 it's a 10amp, tried that one and the truck still turned over?? Anyone else???? There is NO ECM/PCM fuse listed. There is #2 30 amp Engine Control Relay.
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eatsleepdrivesc
 
 Posted: 02-24-2008, 06:31 PM
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Post #4

Weird i just looked at mine i swear i pulled that last year and it works weird...so i cant help ya man
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funinak
 
 Posted: 02-24-2008, 06:37 PM
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Post #5

No problem man, I'm sure SOMEONE out there that has an 02 4.7 that can help me. Thanks for trying
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metluna21
 
 Posted: 02-24-2008, 09:45 PM
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Post #6

Quote:
Originally Posted by funinak
I was just out under the hood and found one labled ECM/SKIM #19 it's a 10amp, tried that one and the truck still turned over?? Anyone else???? There is NO ECM/PCM fuse listed. There is #2 30 amp Engine Control Relay.
Very weird. I know it's #19 for sure. When I pulled it I couldnt start the truck. Anyways, just pull the plug, fasten the drivers seat beat, turn the key to Alt and wait for the chimes. Reinsert the fuse and you're done.
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jpayne80
 
 Posted: 02-24-2008, 11:39 PM
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Post #7

Yep, it's #19. I've never even tried to start my truck with the fuse pulled. Just turn the key to on and wait until the two "dings" happen.
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funinak
 
 Posted: 02-24-2008, 11:43 PM
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Post #8

ANYONE else got any ideas? I pulled #19 AGAIN, went in turned the key to run, waited for the chimes to stop, then heard a 3rd chime and the check engine light came on. Turned the key off, reinstalled the fuse, then started the truck. It started fine but ran @1500RPMS for a while then to 1700?? I shut it down and looked over everything and it seemed OK. Left it alone for a while then started it again and took it for a drive and it idle OK then and ran fine ????
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jpayne80
 
 Posted: 02-25-2008, 12:07 AM
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Post #9

Did you connect the seatbelt? If not, then that would explain the three chimes. Connect the seatbelt and then do the fuse 19 routine. See if that only brings up two chimes.
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