Recent content by 66mike
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tps problem
same issue - frustrating to find intermittent Po122. Turns out the factory TPS harness female connectors get compromised & will lose proper contact with the TPS male connectors on any or all 3 of the wires (reference, signal and ground). Temperature fluctuations and vibration will make it...- 66mike
- Post #2
- Forum: Engine Performance + Maintenance
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OBDII code issues
thanks for the input guys.... clearly I have more diagnostic work to do..... I'm going to start with the simple stuff first, as I discovered I do have a small exhaust leak at the manifold donut right upstream of the O2 sensor on bank 1. If that doesn't address it, I'll dive in deeper......- 66mike
- Post #9
- Forum: Engine Performance + Maintenance
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OBDII code issues
I don't have a live scanner but can borrow one - unknown about the fuel loop/trims... replaced the OEM pump/sending unit a while back but I recall having the issue occasionally before that.... however I have discovered that an exhaust leak upstream can cause the O2 issues, and I do have one at...- 66mike
- Post #6
- Forum: Engine Performance + Maintenance
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OBDII code issues
- 66mike
- Post #5
- Forum: Engine Performance + Maintenance
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OBDII code issues
new to this group - looking for some help before I lose my mind. 96 K1500 w/5.7Vortec, 100K miles - runs great but intermittent rough idle/idle up/bangs in 1-2 shift... will throw the same codes every time. P0122 and P0134 (TPS and O2 bank1 upstream) I've swapped out 3 TPS sensors and when I...- 66mike
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- Replies: 9
- Forum: Engine Performance + Maintenance
