LEE68

Member
1.hi guys,i went out to start the p38 the other morning and it didnt want to start,it took 3 attempts before it spluttered into life with clouds of white smoke and a smell of unburnt fuel(diesel) this was the coldest morning in recent months but i have noticed a slight reluctance to start recently,coupled with a lack of power right across the rev range (although dosent effect speed as such) am i right in thinking it could be a duff injector? i have run out of fuel 3 times in as many months due to the fuel gauge being inaccurate,it had a new fuel pump 30,000 miles ago,is there a way of checking which injector?
2.Both my heated seats do not work which is no great surprise but also about a quarter of my heated screen dosen't work(drivers side)could these be connected in some way,if not,what is causing the screen not to heat this area? thanks very much in advance.Lee.
 
Heated screen no way connected. In both senses. Glow plugs need renewing. For lack of power check that pressure pipe from under manifold to MAP sensor is sound and not blocked also MAP sensor itself is not blocked and outlet from manifold is clear. Get it on diagnostics if all is well with MAP sensor.
 
Heated screen no way connected. In both senses. Glow plugs need renewing. For lack of power check that pressure pipe from under manifold to MAP sensor is sound and not blocked also MAP sensor itself is not blocked and outlet from manifold is clear. Get it on diagnostics if all is well with MAP sensor.

Predict Datatek in-tank pump observation. Not saying either of these is more or less likely. I just like seeing the two experts having their own fixed views as to which is more likely.

G~
 
Predict Datatek in-tank pump observation. Not saying either of these is more or less likely. I just like seeing the two experts having their own fixed views as to which is more likely.

G~

Both will cause power loss. But the MAP sensor a more significant and noticeable one. The engine will run quite happily without a lift pump until you get on a hill in a low fuel state, then it would be more noticeable. I will bet there are more P38s driving around with duff lift pumps and the drivers don't realise it, than with duff MAP sensors. Because one is far more noticeable than the other.
 
Predict Datatek in-tank pump observation. Not saying either of these is more or less likely. I just like seeing the two experts having their own fixed views as to which is more likely.

G~

No point in me mentioning the MAP sensor when Wammers has already covered it, I just add another possibility, I don't regard it as more likely:).
 
No point in me mentioning the MAP sensor when Wammers has already covered it, I just add another possibility, I don't regard it as more likely:).

What they need to do Keith is pull relay 12 and go for a drive. Then put it back in and pull the MAP sensor pipe, then go for a drive see which is more noticeable. I'll bet there are people out there complaining bitterly about how slow their diesel is, driving around with a duff pump AND a blocked MAP sensor.
 
What they need to do Keith is pull relay 12 and go for a drive. Then put it back in and pull the MAP sensor pipe, then go for a drive see which is more noticeable. I'll bet there are people out there complaining bitterly about how slow their diesel is, driving around with a duff pump AND a blocked MAP sensor.

Quite likely:D
 

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