Low Boost, Got Codes

[roosterdiesel]

THe 21-22 psi could be what the WG is set at. Unplug it and see if it goes higher. I don't recomend running it disconnected all the time. How oily are your boots?


The EBP codes are probly either a bad sensor, clogged tube or the stock exhaust is too restrictive. Use the data streams under the diagnostics part of the Evo and report back what your back pressures are at WOT.

 

[Got Diesel]

The Boots on the drivers side are oily for sure. What does that mean? Ok tomorrow I will get the pressure at wot.

 

[Got Diesel]

I got the Exhaust Back Pressure. It never goes above 53psi. Doesnt' go any lower either. Is this normal?

 

[roosterdiesel]

Stays at 53psi even at idle? If so, you have a bad EBP sensor.

 

[Got Diesel]

Ya even at Idle, it may drop to 52.9 but that is it. What would that sensor cause? Could it be the tube?

 

[roosterdiesel]

The EBP codes will cause a defuel I believe. I don't really know what a clogged tube would make it read.: Pull the sensor to check if the tube is plugged. I think it's a 1" deep socket or wrench.

 

[Got Diesel]

So just pull the sensor and the the tube, don't understand fully.

 

[chotal]

Same problem

test

 

[dpantazis]

the tube can get plugged up with rust or soot not letting the sensor read correctly.

or the sensor will go bad.

either way, the sensor value will trick the PCM to defuel.

removing the sensor will let you see if the tube is plugged.

 

[BJS]

you can unplug the sensor or the EBPV solenoid wires and see if the power & boost are back.

I have read in many posts where people could not separate the EBPS from the EBP tube.