i recently changed both sensors on my 2000 slt 4.7 and the idle control and barramatic pressure sensor and still the bank 1 sensor1 voltage comes up and now at gear when stooped it starts to idle likeand more recently when drive it feels like its about to stall or chuggs at 2000 rpms what else might be the issue

 

Just listing common sensor problems here, but:
Throttle Position Sensor (Most likely)
MAF Sensor (Possible)
Crank Sensor (Definitely not)

Since you're already replaced the IAC and the Oxygen Sensor, my guess would be that your TPS will be the one needing a change.

 

i already did that can i be the pcu going

 

well that was changed also im running out of options

 

Check the wiring harness under the power steering pump. It's weird but there can be a small leak in the pressure switch that drips down to the harness where the O2 sensors are carried.

 

yea i second what widow said check the power steering switch for a leak

also i think you meant maf sensor since these trucks dont have a barometric pressure sensor, just the maf sensor.

also i have to ask the stupid question bc so many people forget this step

after replacing the sensor did you reset the computer? if not it can take 50-500 miles of driving for the computer to adjust to the new sensors

 

thanks to all u guys ill have to check that

 

If the power steering has been leaking for a while. Remove the PCM connectors and inspect the connector for oil. If you do find oil in the PCM, Clean the connectors and pray the PCM has not been shorted out.

 

hello all i have another question i did change the o2 checked all wiring and did clear the pcu and after a while it goes back on i just recently found an exhayst leak and change new gaskets could the cat be bad

 

hello all i just changed the o2 and checked the wireing and reset the pcu but after a while the engine light came back on i just rencently found an exhaust leak and chanfged the gaskrt running out of options need to inspect the truck next month what else