maf
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truck boggs down when accelerating
hello all, long time lurker first time poster here; 1998 GMC Yukon SLE 4x4; 5.7, 4l60e, 10bolt rear TLDR: truck shows 2 codes p0740; TCC solenoid, and p0452; FTPS low voltage. recently did a mild engine refresh with a few performance parts, and a Blackbear tune, the truck feels really sluggish...- omarrr
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- engine maf mass air poor performance tcc transmission
- Replies: 9
- Forum: Engine Performance + Maintenance
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Error Codes after MAF Replacement
I have a 2000 C3500 with the 454. I have replaced to MAF just due to age, thought it wouldn’t hurt. The first one replaced with a Blue Streak MAF and after the second warm up cycle I am getting code P0172 and P0175, also had O2 sensor codes but dont remember them. Replaced O2 sensors and those...- Justin Rogers
- Thread
- 454 7.4l maf
- Replies: 1
- Forum: Engine Performance + Maintenance
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97 vortec 305 intermittent low power, poor mpg rough idle in park.
I have a 97 c1500 5.0 vortec it has weak acceleration, poor idle, and horrible mpg. Ive replaced a lot on this engine including all ignition except for the distrutor, and upgraded the injectors to mfi. Still feels the same. Once in a while it will feel better like it has good power again, but...- McSweeney
- Thread
- bad mpg low power maf poor idle vortec 5.0
- Replies: 4
- Forum: Engine Performance + Maintenance
