6.0 with code P0488 won't clear - Ford Powerstroke Diesel Forum

 
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post #1 of 5 Old 05-04-2013, 08:35 PM Thread Starter
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Cool 6.0 with code P0488 won't clear

I'm working on a friends 2004 6.0 f-350 with 95k miles that had codes p01334 and code p0488. I pulled the egr to check it and it appears to be clean. Took the truck to a ford dealer and they told me is needed a throttle plate. So I spent the $800 and put one on. Cleared the codes and drove the truck. No check engine light. Shut the truck off and the next morning when I fired it up had a check engine light again with code p0488 again. So I cleared the code turned off the ignition and turned the headlamps on. Disconnected batteries and let sit for 10 min. Reconnected and performed the relearn process and then performed a 15 mile drive cycle and never had the code come back on. Turned the truck off and fired it right back up and had code p0488 come right back! Any ideas? BTW when I picked the truck up from the dealer I asked them if the engine control unit will need to be reflashed (since I read the tsb about these exact codes and that was the repair) and they said no. Just install the throttle plate and clear the codes and it would be good to go. And advice would be greatly appreciated since I'm about to pull all my hair out lol.
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post #2 of 5 Old 05-06-2013, 11:25 AM
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Delete the egr and remove the throttle plate.

03 F350 SD 6.0 PSD FX4 XLT CC LB SRW See my visitor messages for my mods
To see why you should avoid Sinister Diesel, visit these threads:
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http://www.powerstroke.org/forum/fee...m-customs.html
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post #3 of 5 Old 05-06-2013, 11:27 AM
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Or just remove the butterfly portion

03 F350 SD 6.0 PSD FX4 XLT CC LB SRW See my visitor messages for my mods
To see why you should avoid Sinister Diesel, visit these threads:
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http://www.powerstroke.org/forum/fee...m-customs.html
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post #4 of 5 Old 01-05-2015, 09:40 AM
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what ever came of this?

I replaced the throttle body on mine and fixed the p0488 code for about a year, now it is back and I think it has to do with a bad wire connector.

04' F-250 6.0L

AFE Stage 2 intake
Liberator EGR delete kit
4" MBRP Turbo back (straight piped) WHISTLE
Quad Piller Gauge
zoodad mod
Nitto Dura Grapplers
Edge Insight CS
DieselSite Coolant Filtration
Upgraded fuel pressure spring kit
upgraded turbo oil supply tube(solid)
upgraded turbo drain tube
SWAMP's 48V FICM
Rotella ELC
Firestone Ride Rite air bags in rear
draw-tite 30k hide-a-goose kit
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post #5 of 5 Old 10-05-2015, 11:49 AM
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still trying to figure this out, its really bugging me.

I read some people on the 6.4L are taking resistors and plugging them into the wiring harness to fake out the computer thinking all is good and clearing the codes with success.

too bad radio shack is now out of business, so finding resistors is almost impossible now

04' F-250 6.0L

AFE Stage 2 intake
Liberator EGR delete kit
4" MBRP Turbo back (straight piped) WHISTLE
Quad Piller Gauge
zoodad mod
Nitto Dura Grapplers
Edge Insight CS
DieselSite Coolant Filtration
Upgraded fuel pressure spring kit
upgraded turbo oil supply tube(solid)
upgraded turbo drain tube
SWAMP's 48V FICM
Rotella ELC
Firestone Ride Rite air bags in rear
draw-tite 30k hide-a-goose kit
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