2000 P38 2.5td electrical fault

Ade1966 · May 31, 2020

Morning all. My 2000 BMW 2.5 has developed yet another problem. I recently replaced the FIP and all seemed ok. I started it on Friday and no problems. I went to start it again on Saturday and it wouldn't start. I noticed that the dash didn't have the glow plug light. I plugged my hawkeye total in but it wouldn't connect. My next thought was the wires behind the diagnostic port and the multiplugs in driver's footwell. All seem ok. Plugged my becm syncmate in and it went to red light so unable to sync. Checked eka code in door and that worked. Both keys resynced. Took fusebox out, no damage. Anyone got a clue as to what I do next before I rip dash out. TIA

brianp38dse · May 31, 2020

Is it spinning over and not firing or not spinning at all, have a check of the big maxi fuse in with the ecu.

Datatek · May 31, 2020

Have you actually checked the fuses and as brianp38dse says the glowplug fuse in the EDC box behind the battery?

Ade1966 · May 31, 2020

brianp38dse said:
Is it spinning over and not firing or not spinning at all, have a check of the big maxi fuse in with the ecu.

Spinning and not firing all fuses are ok

Datatek · May 31, 2020

Could be the EDC temperature sensor has failed, that could stop the glow plugs coming on, but the fact that diagnostics will not connect sounds like something more serious, the carpet in the drivers footwell is not wet underneath by any chance?

Ade1966 · May 31, 2020

Datatek said:
Could be the EDC temperature sensor has failed, that could stop the glow plugs coming on, but the fact that diagnostics will not connect sounds like something more serious, the carpet in the drivers footwell is not wet underneath by any chance?

Carpet is wet underneath but it hasn't got into becm as far as I can see

brianp38dse · May 31, 2020

This is the glow plug maxi fuse except this one has blown (pic pinch from Lukas 018`s thread)

15905990006177752918474440247682-jpg.210548

Ade1966 · May 31, 2020

brianp38dse said:
This is the glow plug maxi fuse except this one has blown (pic pinch from Lukas 018`s thread)

No problems there

brianp38dse · May 31, 2020

OK that rules that one out, can you feel the diesel stop solenoid on the pump clicking when the ignition is on.

Ade1966 · May 31, 2020

brianp38dse said:
OK that rules that one out, can you feel the diesel stop solenoid on the pump clicking when the ignition is on.

Working fine

Grrrrrr · May 31, 2020

Might have lost sync between EMS and BECM although why that would affect glows is a mystery. Could be that and temperature sender. Has it got a hot-start fitted?

RangeRoller dt · Jun 1, 2020

I’m not convinced it’s electrical. Has it been running since you stripped the pump
How did you set static?

Datatek · Jun 1, 2020

Ade1966 said:
Carpet is wet underneath but it hasn't got into becm as far as I can see

If the carpet is wet, corroded connectors and condensation in the BECM can cause havoc.

Ade1966 · Jun 1, 2020

Grrrrrr said:
Might have lost sync between EMS and BECM although why that would affect glows is a mystery. Could be that and temperature sender. Has it got a hot-start fitted?

Got diagnostics to connect to eas and abs and airbag. Won't connect to gearbox and engine. I have also got a blackbox syncmate which syncs becm and ems but that won't sync. No hot start fitted

Ade1966 · Jun 1, 2020

RangeRoller dt said:
I’m not convinced it’s electrical. Has it been running since you stripped the pump
How did you set static?

Been running every day for a week no problems. Pump fitted into keyway which was held in place using bmw tool for m51 pump and then meter put in back of pump to time pump up

Ade1966 · Jun 1, 2020

Datatek said:
If the carpet is wet, corroded connectors and condensation in the BECM can cause havoc.

Took ems out earlier and looks ok inside no circuits damaged. Becm is next out tomorrow. Also had started to strip bottom of dash out. At moment I can't see any problems with wiring

RangeRoller dt · Jun 1, 2020

Your diagnostics does SRS airbags?

(Askin furra friend)

Lukas018 · Jun 1, 2020

I had this issue where the ECU shorted out and my sync mate would not connect. I saw Rick the lick who fixed it and I confirmed it when he advised the following:

Put a jump lead from the body of the ECU to the negative battery of the terminal then put car on ignition 2 if glow plug and engine check light come on there is a broken circuit in ECU?

Let me know @Ade1966

Ade1966 · Jun 1, 2020

RangeRoller dt said:
Your diagnostics does SRS airbags?
(Askin furra friend)

Hawkeye total reads and clears airbag faults. I haven't gone any further into settings yet

Ade1966 · Jun 1, 2020

Lukas018 said:
I had this issue where the ECU shorted out and my sync mate would not connect. I saw Rick the lick who fixed it and I confirmed it when he advised the following:

Put a jump lead from the body of the ECU to the negative battery of the terminal then put car on ignition 2 if glow plug and engine check light come on there is a broken circuit in ECU?

Let me know @Ade1966

I will do that tomorrow

2000 P38 2.5td electrical fault

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