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Ranger_Sid

New Member

• Nov 5, 2006

• #1

My P38 diesel does about 17/18 mpg. I know this is too low and ws expecting 20-25mpg. Not sure what to change but thinking MAF sensor.
I know this is normally on the air intake but can someone tell me where it is on this and what it looks like.

Will replacing this make a difference to mpg? If not what else should I be looking at?

Runs fine other than this one issue which I really would like to do something about!! Has the hot start problem as well but have seen the relay and resistor fix for this.

 

Labiarat

Active Member

• Nov 5, 2006

• #2

Hey would be really interested in any answers to this too, it seems we have the same problem regarding fuel enonomy I have recently replaced my airfilter for a K&N thinking this may help but it hasnt

 

rewmer

Well-Known Member

• Nov 5, 2006

• #3

Have you guys cleaned out your intercoolers recently ?
If not try it, they are quite easy to remove, sloosh em with a couple of gallons of petrol a couple of times and see the difference.....

 

R

Ranger_Sid

New Member

• Nov 5, 2006

• #4

Not tried cleaning that. Will do and post results.
Might also explain the sluggish performance which I've just put down to it being a deisel.

 

rewmer

Well-Known Member

• Nov 5, 2006

• #5

The sluggish performance is down to an underpowered enginge in a 2.5 tonne car, it aint never going to fly but it should be drivable.Keep it well serviced and change those filters and oil before the service interval.

 

Labiarat

Active Member

• Nov 5, 2006

• #6

Well known this engine is underpowered... but a lot of people on this forum do seem to be producing better MPG than others so its always worth asking. I am having my engine stripped down on wednesday to check out a knocking noise and I have already asked for a intercooler flush so hopefully once this is done and my engine (hopefully) sounds better I will publish some results..... watch this space.....

 

Labiarat

Active Member

• Nov 5, 2006

• #7

just to add another jibber.. I have found my oil burner to be fairly sprightly really considering its just over 2t, so I have fingers crossed that when my intercooler is done ive got a scooby catcher.... ha ha ha