Exhaust Back Pressure Sensor
#1
#3
Clean the tube and sensor. It effects a lot of things, including fuel mileage.
If you unplug the wastegate, you run the risk of over boosting. If you have gauges and can live by them, then you should be okay.
If you unplug the wastegate, you run the risk of over boosting. If you have gauges and can live by them, then you should be okay.
#4
#5
JDW1. could be a sensor issue, but could also be a stuck valve internally too. I had a problem with a 7.3L E-350 van where the valve would stay closed no matter how much pedal I gave it. I found that the butterfly/ gate valve, whatever you want to call it, would mechanically get stuck internally. if you can get a view of the actuating rod (MUCH MUCH easier on a van!!!) turn the engine on when its cold and you should see the valve close, if you turn the truck off, it should lose its oil pressure signal and open up again. mine didn't...the rod just stayed closed till i pushed it back by hand. worth a check before digging into electrical issues, only takes a minute to check.
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