I just serviced my "uni" air filter (cleaned , oiled and reinstalled). After starting , I got code 0191 (fuel pressure sensor). My qustion is, would this throw this code? I also replaced the torque tube back to stock.
Thanks
Odie

 

You didn't start it up with the Air temp sensor still unplugged, did you?

 

I just double checked, and the sensor is attached.

 

Chances are it is completely coincidental and has no relation tot he air filter...it does sound like maybe you are due for a new lift pump however?

That code is for the fuel pressure sensor mounted on the hp fuel rail. It is on the drivers side of the intake manifold to the rear of the intake opening. Maybe just double check to make sure that your electrical connections are good and corrosion free...otherwise either the sensor failed or there isn't enough fuel or fuel pressure in to make the sensor read properly.

 

Thank for the quick responses!!
odie