P38 starting problems

Datatek · Apr 11, 2013

wammers said:
Not a very good idea then.

Could be the unit is fecked.

shaunm41 · Apr 12, 2013

Removed the resistor and refitted the hot start fix, now get glows on hot starts, 11.7 ish volts on glow 6 while glow light on then off then back on while cranking then off when engine starts.. Assuming that's all correct? It starts much better but does still need some cranking. I can live with that though.

Datatek · Apr 13, 2013

shaunm41 said:
Removed the resistor and refitted the hot start fix, now get glows on hot starts, 11.7 ish volts on glow 6 while glow light on then off then back on while cranking then off when engine starts.. Assuming that's all correct? It starts much better but does still need some cranking. I can live with that though.

11.7 volts is about right, the glowplugs if they are the correct ones are rated at 11 volts. Sounds OK to me.

shaunm41 · Apr 13, 2013

Just got my donor home.. 95 DT with 175000 on clock. No hot start fix and starts first turn of key hot or cold. Runs sweet as a nut, powerfull, pulls hard..... What parts should I put in the other to make it the same?

wammers · Apr 13, 2013

Swap the number plates.

shaunm41 · Apr 13, 2013

I've thought of that pal

shaunm41 · Apr 18, 2013

Just a got the p38 back from the garage, fitted the pump off the donor motor, now fires first crank when hot, and pulls away like a train..... Well happy and he only charged me £200...

Said he checked the timing on the old pump and it wasn't very far out at all so was the pump causing the problems not the timing...

All in all jobs a good un

Thanks for all the advice

shaunm41 · Apr 18, 2013

All is not as well is I thought. Hope this could be an easy fix tho... Engine lamp is on now and nanocom says the following fault

Needle lift sensor invalid value
Type: high circuit, major fault, logged

shaunm41 · Apr 18, 2013

I'm also getting the following

Road speed sensor out of expected range

Water temp invalid value

Any idea? I've tried clearing the faults but they come straight back

Datatek · Apr 18, 2013

shaunm41 said:
All is not as well is I thought. Hope this could be an easy fix tho... Engine lamp is on now and nanocom says the following fault

Needle lift sensor invalid value
Type: high circuit, major fault, logged

Needle lift sensor may just be the connector as they would have had the manifold off or even the wire trapped.

Datatek · Apr 18, 2013

shaunm41 said:
I'm also getting the following

Road speed sensor out of expected range

Water temp invalid value

Any idea? I've tried clearing the faults but they come straight back

Again wiring will have been disturbed, water temp sensor for the gauge is above the FIP, sensor for the EDC is a bit further along the head, all in the general work area.
Think I'd take it back to the garage.

shaunm41 · Apr 18, 2013

Also the injector set point degrees reads 0.00 all the time.

And when sat with it idling after a while it just stops for no reason

Datatek · Apr 18, 2013

shaunm41 said:
Also the injector set point degrees reads 0.00 all the time.

No signal from the needle lift sensor.

shaunm41 · Apr 18, 2013

I've unplugged the needle lift sensor and re plugged it back in. All the wire looks to be fine and still no better

Datatek · Apr 18, 2013

shaunm41 said:
I've unplugged the needle lift sensor and re plugged it back in. All the wire looks to be fine and still no better

Throw it back at the garage that did the work, it's their problem IMO

shaunm41 · Apr 18, 2013

I think I might take it back up

wammers · Apr 18, 2013

People have been known to trap the number four injector wire in the manifold. Check that. Remove your hot start if you have not already. See what you get then.

WatchcamP38 · Apr 18, 2013

Datatek said:
Battery Megastore on line, Alphaline 135AH 1000 CCA about £98 delivered it's the biggest that will fit

Would this be recommended for V8 as well?
Thanks

Datatek · Apr 18, 2013

WatchcamP38 said:
Would this be recommended for V8 as well?
Thanks

Yep, I think the battery box is the same.

shaunm41 · Apr 18, 2013

Just spoke to garage. He advised me to check all the fuses and also he gave it a good steam clean to a bit of water may have worked into connectors and be throwing up the faults. Is that likely?

Checked the wire from needle lift sensor and it looks ok

Hot start fix not removed yet but will take it off in a bit

P38 starting problems

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