SEFI starting/running rich problems

[Silverhorse]

Ok, Truck will start and run good until it gets warmed up and then I have to press the pedal down to start it? Appartently it's running rich, but why? I swapped computers and got the same result. KOEO 15 and 85. KOER 11. Thanks for any help!

 

[70EB]

I think you might have a computer issue.

85 KOEO code is OK
15 KOEO code is another issue - EEC permanent Read Only Memory (ROM) test failed. Looks like a computer issue.

11 KOER code is a system pass code for that scan.

Does your computer have any broken pins, dirt in the connector, good grounds?

 

[Silverhorse]

I think you might have a computer issue.

85 KOEO code is OK
15 KOEO code is another issue - EEC permanent Read Only Memory (ROM) test failed. Looks like a computer issue.

11 KOER code is a system pass code for that scan.

Does your computer have any broken pins, dirt in the connector, good grounds?

Looks good from what I can tell?

 

[jurob]

did it used to run good when warm?

you have a closed loop issue, but what?

i would start with tapping into your o2 sensor and check your voltage to see if their dead thus dumping fuel. should get a code for bad o2 though.

for poops in giggles try uplugging your egr it its still functional.

 

[Silverhorse]

Thanks guys, I'll check all these issues first chance I get!

 

[fiscus]

coolant temp sensor?