primetime5.0

21-ECT out of self test range 0.3 to 3.7 volts.
34-PFE or EVP circuit above the closed limit of 0.67 volts,PFE or EVP circuit has intermittently failed above the closed limit of 0.67 volts.
44-Thermactor Air Injection system inoperative (Right side).
94-Thermactor Air Injection system inoperative (left side).

those are the codes I got, the only ones im worried about are the first two obviously, the car idles fine for a few minutes then begans to surge really bad then eventually kill itself... any ideas?

mjr46

when you ran the koer test was it warmed up??? if not that'll explain code 21

primetime5.0

as warmed up as it was going to get before it dies on its own

mjr46

it has to reach closed loop I believe or it'll flag that code if koer is run

primetime5.0

and the only koeo code that caught my eye was 67- neutral safety circuit failure
.

mjr46

the evp code is the egr valve position sensor..do you still have egr on yours??

primetime5.0

kinda I took off the part where it plugs into then glued the plunger half way down to make the car think its working

primetime5.0

alright I just did it with the car at normal temp, code 21 went away but code 31 popped up PFE or EVP circuit below minimum voltage of 0.24 volts.

aode08

kinda I took off the part where it plugs into then glued the plunger half way down to make the car think its working

primetime5.0

I know but it works great!