Multiple Error Codes

[Thomasrjt01]

I have a 92 F150, 5.0, 4X4, Reg Cab that i have multiple error codes on.
13, RPM unable to reach lower test limit
14, Pip Circuit failure
34, EVP voltage above closed limit
41, No HEGO switching detected
52, Power steering pressure switch circuit open
I need some help with where to start and how to check these systems. I have both the Haynes and chiltion manual, however, neither of them mention the Pip circuit. Any help that I can get would be greatly appreciated. Thanks.

 

[flareside_thunder]

the PIP is inside the distributor.....that's about all i can help ya with lol. Welcome to the site!

 

[blacksnapon]

I have a 92 F150, 5.0, 4X4, Reg Cab that i have multiple error codes on.
13, RPM unable to reach lower test limit
14, Pip Circuit failure
34, EVP voltage above closed limit
41, No HEGO switching detected
52, Power steering pressure switch circuit open
I need some help with where to start and how to check these systems. I have both the Haynes and chiltion manual, however, neither of them mention the Pip circuit. Any help that I can get would be greatly appreciated. Thanks.

The 13 and 14 are related, the 41 might be the engine wasn't warmed up enough, 52 possibly that the steering wheel wasn't turned a half turn during the testing. 34 not sure right now, dont have any reference materials here now.

 

[Alvin in AZ]

...dont have any reference materials here now.

Would my '91 Engine/Emissions-Diagnosis procedures be any good on his '92?
Do you know off hand where the lines are drawn between the years on that?

Alvin in AZ

 

[5.0Flareside]

Would my '91 Engine/Emissions-Diagnosis procedures be any good on his '92?
Do you know off hand where the lines are drawn between the years on that?

Alvin in AZ

yeah your diagnosis procedures will be fine.. the only "line" is the OBDI-OBDII split.. but no specific year on the old pushrods...

 

[Thomasrjt01]

Many thanks!

Thanks for the responses to my request for help. Can anyone explain how the Pip circuit works? Is it purely contained in the distributor, or do other systems affect the Pip?