Hi! I have a 1995 Ford F-150 with the 5.8l v8 engine. It’s automatic, with 134,000 miles. The truck is sending 2 codes. code 332: insufficient flow to egr valve, and code 173: O2 sensor running rich. I have replaced both the egr valve and the O2 sensor. I have fixed vacuum leaks and have done everything in my knowledge to fix this issue but it still sends the codes.
thanks for the help!
Those codes are generic codes for example if the car is actually running rich the oxygen sensor will keep telling the computer and it can trip the code for the oxygen sensor even though the oxygen sensor is just reporting a problem of the engine running too rich. Egrl stuff that's anti-pollution crap usually doesn't affect how the vehicle runs at all I would fix the Rich running first. Because if it needs you haven't goes bad that will actually make a car run lean and yours is doing the exact opposite
