Thread: 99 MY TD5 Defender Nanocom 1 Report

From the faults it almost sounds like it has a D2 map?

Because there is a large number of open load and short circuit faults I'd suggest checking the plugs and harness near the ecu for damage. If you can, check the harness for continuity. The wiring diagram and electrical library PDFs on rave will help identify the wires.

Cheers
Paul

Agreed, do you have a later writable ECU, or a Td5 and ECU from a disco ??
Do you still have an EGR ?

There is no Wastegate modulator on a Defender Td5 so you should not get wastegate flts showing on a Defer

the faults could be artifacts of a remap, but that would be only if it had a later ECU as I understand the 99 ECU would not be writeable.

Faulty earths are a common cause of intermittent problems, especially in the case of body earths on a Defender because Aluminium oxide grows between your earth leads and the aluminium they are bolted to , and Al2O3 is an electrical insulator,

Also have you checked your MAF sensor ?
If its Ambient related Td5 Defenders have an ambient temp & pressure (AAP) sensor in the air box - worth a look.

The ECU is the original (i.e. not writeable) but I had it upgraded about 5 years ago - can't remember who did it but it was someone recommended on this site (as best I remember they were near Sydney). That probably explain some of the MAP questions.

Howard

What is the model number on the ecu? Should start with msb...

As goingbush says you shouldn't see turbo wastegate modulator faults on a Defer ecu.

Most of the first list of faults I'd put down to the ecu being powered up out of the vehicle or with the red connector unplugged. This might simply be because faults weren't cleared after bench testing.

The one that looks out of place is the topside fault, which often points to component failure within the ecu. As it hasn't recurred you might be ok.

Cheers
Paul

Originally Posted by OffTrack

What is the model number on the ecu? Should start with msb...
Cheers
Paul

I can't see it - maybe it is on the bottom of the ECU? I believe it is the original that came with the vehicle.

Without stretching the friendship too far, I have attached a report of paramaters during a short drive this morning and that, together with the following error report, is making me think I have a problem with the EGR.

Could anyone comment on this please?

Howard

The TD5 ecu contain the following faults:
FAULT 01-07 EGR vacum modulatore schort citcuit (INTERMIT.)
FAULT 05-07 air flow circuit (INTERMIT.)
FAULT 09-05 turbocharger wastegate open load (CURRENT)
FAULT 09-06 EGR inlett throttle open load (CURRENT)
FAULT 10-01 air conditioning fan drive open load (CURRENT)
FAULT 10-05 air conditioning clutch open load (CURRENT)
FAULT 13-05 Turbocharger wastegate short circuit (INTERMIT.)
FAULT 13-06 EGR inlet trottle schort circuit (INTERMIT.)
FAULT 14-01 air conditioning fan drive open load (INTERMIT.)
FAULT 14-05 air conditioning clutch open load (INTERMIT.)

As there is no WG modulator on a defer the only one there that I'd investigate is air flow circuit

I'd clean or get a new MAF for starters and clean your MAP sensor

none of the others are relevant,
If you still have a EGR your MAP will be filthy ,

you have not mentioned if you have removed the EGR, if it it was removed the MAP sensor was probably never cleaned.

Also stating the obvious, theres no oil in your injector loom is there ??


http://www.aulro.com/afvb/projects-t...ap-sensor.html




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Originally Posted by goingbush

Also stating the obvious, theres no oil in your injector loom is there ??


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There was but I cleaned it the other day where it connects to the ECU and lots of errors went away but the ones that remain are constant - clear the errors and when I read next time they are back.

Thanks for the advice re MAF and MAP sensor. I will do those and see how it goes.

Howard

Originally Posted by goingbush

you have not mentioned if you have removed the EGR,

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The EGR is still in the system - is it common/recommended to remove it?

Howard