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tuftey

New Member

• Nov 22, 2013

• #1

When I set of from lights every so often engine drops revs so take my foot off accelator and press back down and its ok any body else had this fault

 

wammers

No longer with us, RIP

Donater

• Nov 22, 2013

• #2

Anybody else with what engine, vehicle you know things like that. The grand kids have one of the friction drive things that you pull back and then let go. That hesitates sometimes if on the carpet if that helps.

 

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tuftey

New Member

• Nov 22, 2013

• #3

Sorry its a p38 2.5 manual 1998 model in green 16inch wheels running bio

O I can be as flipent as you pal

 

gfromleeds

Well-Known Member

• Nov 22, 2013

• #4

Lol you'll get used to him hes like that sometimes but hes also one of the most knowledgeable guys on heer
As for your prob have you tryed running regular dead dinosaur for a bit

 

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tuftey

New Member

• Nov 22, 2013

• #5

Well funny that it has been stood for a while so will try and run it this week now

 

wammers

No longer with us, RIP

Donater

• Nov 22, 2013

• #6

tuftey said:

Sorry its a p38 2.5 manual 1998 model in green 16inch wheels running bio

O I can be as flipent as you pal

Click to expand...

Bet you can't . Anyway as it's fly by wire, stick it on diagnostics and check the throttle pot outputs. You may have a fault code, fuel quantity error logged also. Only thing that can cause that is quantity servo not following throttle pot request for some reason.

 

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tuftey

New Member

• Nov 22, 2013

• #7

O brill thanks will do monday

 

Datatek

Well-Known Member

• Nov 23, 2013

• #8

No power below 2K rpm is normal, but as it's been standing and run on Bio I would guess it's full of stick deposits.

 

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cammo45

Active Member

• Nov 24, 2013

• #9

Hi tuftey, I have the same problem with my p38 2.5 DT manual but it only happens now and again, I have been told that there is a sensor on the accelerator and also on the clutch that could be the problem, it's another job to do when I get round to it.

 

wammers

No longer with us, RIP

Donater

• Nov 24, 2013

• #10

cammo45 said:

Hi tuftey, I have the same problem with my p38 2.5 DT manual but it only happens now and again, I have been told that there is a sensor on the accelerator and also on the clutch that could be the problem, it's another job to do when I get round to it.

Click to expand...

The switch on the clutch is for cruise control. There is a potentiometer on the throttle to signal throttle request to the ECU. Diagnostics are needed to check for malfunctions.

 

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cammo45

Active Member

• Nov 25, 2013

• #11

Thanks for that info wammers, that may explain why my cruise control hasn't been working for a while, another job to do when I get the time.