88 351 koeo codes
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Elder User
Joined: Nov 2010
Posts: 731
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From: Ocean County, NJ
88 351 koeo codes
These are my codes
Koeo
85
Koer
12
33
41
Do i have a bad egr valve an o2 sensor ?
If the truck sits overnight, wont start unless i shoot ether at it. If i push the gas pedal hard an to floor, it stumbles like its gonna stall, sometimes it'll pop like timing chain jumped a tooth.
It also has a blown head gasket.
Koeo
85
Koer
12
33
41
Do i have a bad egr valve an o2 sensor ?
If the truck sits overnight, wont start unless i shoot ether at it. If i push the gas pedal hard an to floor, it stumbles like its gonna stall, sometimes it'll pop like timing chain jumped a tooth.
It also has a blown head gasket.
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
More than likely no to both questions.
Service Code 85 indicates a failure in the CANP solenoid circuit.
Service Code 33 in Key On Engine Running indicates that the EVP sensor input did not change after the EVR solenoid was instructed by the processor to open the EGR valve. Because a Code 84 was not received in the Key On Engine Off Self-Test, it is known that the EVR solenoid functions electrically. It is also known that the EVP sensor is in the expected closed valve range because Code 32 and 34 were not received in either Key On Engine Off or Key On Engine Running Tests.
Service Code 41 system indicates lean.
Service Code 12 indicates that during Engine Running Self-Test, engine rpm could not be controlled within the Self-Test upper limit band.
Service Code 85 indicates a failure in the CANP solenoid circuit.
Service Code 33 in Key On Engine Running indicates that the EVP sensor input did not change after the EVR solenoid was instructed by the processor to open the EGR valve. Because a Code 84 was not received in the Key On Engine Off Self-Test, it is known that the EVR solenoid functions electrically. It is also known that the EVP sensor is in the expected closed valve range because Code 32 and 34 were not received in either Key On Engine Off or Key On Engine Running Tests.
Service Code 41 system indicates lean.
Service Code 12 indicates that during Engine Running Self-Test, engine rpm could not be controlled within the Self-Test upper limit band.
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