Finally got trouble codes

[Elk_hunter]

The autozone here finally started to test for check engine codes. I took mine in about 30 min ago And It showed 2 codes.

One was 133 and the other was 401.
I think the 133 is an oxygen sensor , the 401 has to do with a Low EGR flow . Any ideas on these 2 codes.

The first one might be just changing the upstream o2 bank 1 sensor(whichever one that is). But the second code....I saw something about the DFPE going bad, but I though that was with a high flow.......Thanks for any help you can give me.

 

[RedBeard]

I went throught the code 401 blues a week ago. Turns out, it was the DPFE sensor. $94 clams from the dealer, probably $150 installed.

My Chilton's manual show code 133 as Fuel Control System Fault.

Hope this helps!

-RB

 

[kardinal]

i had to change the EGR valve on my 92 F150, simple, and cheap. it took me 10 mins max. as for the O2 sensors... ford stuffed them up above the tranny and if you have any type of weight on you good luck fitting your hand up in there.