Hi all! been away for awhile because "ole red" has been running so good until now. Here's what I've got problems with.By the way she's a 95 K1500 with a 5.7.
Stuttering on acceleration and at freeway speeds. the first codes were for EGR failure and O2 sensor failure. Both have been replaced but now I have new codes and the same problem.
Now I have DTC 44, 51 & 54. DTC 54 was a fuel pump relay low voltage and I replaced the relay. Still the same stuttering and stumbling. DTC 51 is an ECM failure I believe? DTC 44 is a lean O2 reading.
Starting to get real frustrated here. I replaced the fuel pump approx. 6 years ago but I'm starting to lean towards the fuel pump as being the problem. I haven't checked the pressure yet but that is next.
I have read that the ECM's on the 95's rarely go out. Is this true? Any help would be greatly appreciated. I don't have much hair left to pull out.....
Stuttering on acceleration and at freeway speeds. the first codes were for EGR failure and O2 sensor failure. Both have been replaced but now I have new codes and the same problem.
Now I have DTC 44, 51 & 54. DTC 54 was a fuel pump relay low voltage and I replaced the relay. Still the same stuttering and stumbling. DTC 51 is an ECM failure I believe? DTC 44 is a lean O2 reading.
Starting to get real frustrated here. I replaced the fuel pump approx. 6 years ago but I'm starting to lean towards the fuel pump as being the problem. I haven't checked the pressure yet but that is next.
I have read that the ECM's on the 95's rarely go out. Is this true? Any help would be greatly appreciated. I don't have much hair left to pull out.....
