Page updated on 04-24-2018

P0191 error code fuel rail sensor

11-21-2010, 11:37 PM
I think I the know the answer already, but looking for support that i am :banghead:

P0191 per service manual, check pressure if ok, than replace sensor, if not, than all kinds of electronic diagonostic test.
sensor is 594 at napa... OUCH:screwy::screwy::disappoin:disappoin

have not check fuel pressure with scanner, need to track someone down that has one that will give me psi on rail.. 870psi per service manual.. is that a type o...

any possibility that some crud got through the filter, or settled out from filter change and plugged up sensor.. that maybe it just needs to be cleaned, because if the sensor completely fails, vehicle will not start and with hunting and die hard surf fishing i will be well, :disappoin ok jacked up and up a creek with out a paddle if it happens in remote locations,

Chris Stewart
11-22-2010, 09:21 PM
Maybe the snap-on scanner will do that but it won't be cheap.

Add your comment to this topic!