Jps0039
Member
- Joined
- Apr 2, 2020
- Posts
- 32
- Reaction score
- 12
This one has me stumped. Have done coil pack, plugs wires, MAF l, purge valve solenoid, and fuel injectors. The best advise I’ve gotten so far is to seal out an upper end OB2 reader to check compression and graphs. And to manual test fuel pressure. I’ve recently replaced the vent valve solenoid also and TPS. Could be bad CAT or MAP or fuel pressure regulator. Any and all advise appreciated I’m at my witts end. Live in Lee county AL if anyone lives close by. 07 Chevy Tahoe 5.3 4x4
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