Whats up guys I'm the new guy here
My 95 F150 351 is reading the following error codes:
DTC-172 O2 Sensor Fault / Lean
DTC-173 O2 Sensor Fault / Rich
So would that mean my O2 sensor is shot? Runs good up until 45mph then it bogs way down and the check engine light pops on. Also has a rough idle at times and when I first start it in the morning it idles so rough it wants to stall out until I rev it up, then it evens out and runs fine. Has 114k miles and pretty sure its the original O2 sensor. Its been doing this since I bought it at 105k and progressively getting worse to the point where now it goes through gas like crazy (10mpg or less).
and then theres the DTC 332 - Insufficient EGR flow
What causes that?