PULLED CODES...just need help now
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Fleet Mechanic
Joined: Nov 2007
Posts: 1,263
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From: DARTMOUTH MA
PULLED CODES...just need help now
P1280 injector control preasure circuit
PO 475 exhaust preasure control fault
PO605 internal control module rom error
So CEL light came on and truck has been shuting off on me at lower RPMs
Also noticed when i shift the shifter into (Drive) it engages much faster than usual
so I changed my CPS and getting the same results.
Any thoughts would be great. Ty
PO 475 exhaust preasure control fault
PO605 internal control module rom error
So CEL light came on and truck has been shuting off on me at lower RPMs
Also noticed when i shift the shifter into (Drive) it engages much faster than usual
so I changed my CPS and getting the same results.
Any thoughts would be great. Ty
Postmaster
Joined: Sep 2007
Posts: 4,195
Likes: 6
From: Medford Oregon
Which truck?
1280 = Signal voltage was less than .039 volts for more than 0.2 seconds
0475 = Exhaust pressure control valve malfunction
On the 1280 it's probably a bad ICP or connection. If unplugged and inside the connector there is oil then it's starting to leak. Could be other things but this is a starting point. Read actual pressure with a scanner if possible.
On the 0475 if the EBPV is removed or unplugged that code is generated.
On the 0605 if the truck is chipped this code can be generated.
1280 = Signal voltage was less than .039 volts for more than 0.2 seconds
0475 = Exhaust pressure control valve malfunction
On the 1280 it's probably a bad ICP or connection. If unplugged and inside the connector there is oil then it's starting to leak. Could be other things but this is a starting point. Read actual pressure with a scanner if possible.
On the 0475 if the EBPV is removed or unplugged that code is generated.
On the 0605 if the truck is chipped this code can be generated.
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Joined: Sep 2003
Posts: 2,630
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From: North East Ohio
I would think so. It needs ICP to maintain an idle so if it's getting a bad reading and ICP drops too low then the injectors won't fire and it shuts off.
If there's oil in the plug, replace the sensor. Might fix your issue, might not, but it's a clear sign it needs replaced regardless.
If there's oil in the plug, replace the sensor. Might fix your issue, might not, but it's a clear sign it needs replaced regardless.
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'96 7.3 F-350 Reg Cab 4x4 - bought new.
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'08 6.4 F-550 Reg Cab 6 spd 4x4
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