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31

Omega General Help / Re: 64 Fuel Quantity Control Out of Range

« on: 27 September 2010, 20:43:41 »

Did it used to be a petrol then?

yep  ... did you miss the thread 

That I now can't find... 

32

Omega General Help / Re: 64 Fuel Quantity Control Out of Range

« on: 27 September 2010, 20:42:46 »

Have you also connected
ECU        Autobox
Pin 40 to Pin 38
Pin 43 to Pin 26
Pin 50 to Pin 40 (I think, print is not clear)

43 to 24 i have, but now i'm not too sure about 50 to 40, (X2-2) GN. I have also spotted that it goes to TC which I completely ignored for the time being 

33

Omega General Help / Re: 64 Fuel Quantity Control Out of Range

« on: 27 September 2010, 20:36:07 »

So its gone from Manual to auto or auto to manual?

car has always been an auto (V6 petrol) doner car (TD) was a manual, but DVLA have restricted my licence to Auto only so I had to make the TD drive an autobox

so I guess the easy answer is manual to auto

34

Omega General Help / Re: 64 Fuel Quantity Control Out of Range

« on: 27 September 2010, 20:23:46 »

Pin 24 looks to be key, its connected to chassis 0V in Manual setups and direct to the autobox ecu in auto setups

Just going to double check that bit, but i'm sure it's right... (Trouble with working with a late model Autobox ECU and a early model engine ECU... two lots of wiring to check  )

35

Omega General Help / Re: 64 Fuel Quantity Control Out of Range

« on: 27 September 2010, 20:21:37 »

I guess cruise is not working unless you have removed K13 and connected pin 28 to F15 via the clutch switch

No cruise, and I need to sort that out, but not important right now)

36

Omega General Help / Re: 64 Fuel Quantity Control Out of Range

« on: 27 September 2010, 20:20:32 »

Is pin 24 (Brown wire) on the ECU connected to chassis ground?

Not anymore, that's been replaced with a wire from pin 31 on the gearbox ecu to pin 24 on ecu (Brown with White Stripe)

37

Omega General Help / Re: 64 Fuel Quantity Control Out of Range

« on: 27 September 2010, 20:11:05 »

EGR on a diesel should be fully open at idle so I doubt thats it.

So what happens if it's not ??

Anyone spotted i'm a little out of my depth with diesels 

so, it was a diesel out of an auto and now its manual....let me consult my wiring info

Nope, diesel out of a manual and now an auto... mated to a confused petrol (late model) autobox ecu that needs a reprogram too....

38

Omega General Help / Re: 64 Fuel Quantity Control Out of Range

« on: 27 September 2010, 19:55:06 »

Bugger, might have answered my own question here... One thing I have left to connect is a relay (K13) to P/N signal and pin 26 on the ECU (anyone know what that does ?) PIn 26 on a manual goes to plug X3 pin 5 and goes to CRC (cruise ??)

Wonder what that lot does then

I'm going to guess it tells the ECU it's in Park or Neutral.. 

Sorry, no real help, but.. I wonder if it tells the ECU to inject (much) less fuel as there's no gearbox load on the engine?

Not sure, I've searched for the ECU (DDE 2.11) schematic to no avail. Fuel injector pump I can work out is controlled by P68 and that seems to go to pins 1,2,35,39,14, 21 and in a convoluted way to pins 10 and 17 but externally it isn't connected to pin 26.. internally that may be a different matter.

The electronics and wiring I can get my head round if it's available, the internal bits (ECU) are a mystery and that really does not help.

39

Omega General Help / Re: 64 Fuel Quantity Control Out of Range

« on: 27 September 2010, 19:49:09 »

EGR on a diesel should be fully open at idle so I doubt thats it.

So what happens if it's not ??

Anyone spotted i'm a little out of my depth with diesels 

40

Omega General Help / Re: 64 Fuel Quantity Control Out of Range

« on: 27 September 2010, 19:36:51 »

ticks over at 600 ish, seems happiest at 900+, except when in gear and  it ticks over at 600 happily, although takes a second or two to settle (excess fuel i guess)

I'll try blanking the egr valve off, I'm sure I can find something at work to block it off with 

41

Omega General Help / Re: 64 Fuel Quantity Control Out of Range

« on: 27 September 2010, 19:14:52 »

so as  soon as its under load it sorts itself? is that what your saying  :-/

appears to yep  :-/

42

Omega General Help / Re: 64 Fuel Quantity Control Out of Range

« on: 27 September 2010, 19:14:12 »

Bugger, might have answered my own question here... One thing I have left to connect is a relay (K13) to P/N signal and pin 26 on the ECU (anyone know what that does ?) PIn 26 on a manual goes to plug X3 pin 5 and goes to CRC (cruise ??)

Wonder what that lot does then

43

Omega General Help / Re: 64 Fuel Quantity Control Out of Range

« on: 27 September 2010, 18:58:41 »

More proof that something is slightly amiss, popped into my local garage for a chat and stuck the diesel probe up the exhaust.

Off load "P" or "N" (tick over) the smoke was all over the place 30-90% depending on how it felt

In gear ticking over <2% generally

Revving >1k then about 0.3%

Couple of things spring to mind

I have a manual TD ECU connected (The engine came from a manual car), I wonder if an ECU from an auto has a different map for tickover ?

Wonder if i've missed something out in the wiring between the autobox and the ECU ??

44

Omega General Help / Re: 64 Fuel Quantity Control Out of Range

« on: 26 September 2010, 21:32:58 »

No real black smoke, except when chugging on tick over.

What's the black smoke, if not overfuelling?

Fair point, well made 

45

Omega General Help / Re: 64 Fuel Quantity Control Out of Range

« on: 25 September 2010, 20:50:47 »

Sounds like it's overfuelling by a fair margin to me and borderline flooding at idle.. leaky injector maybe?

Now that's beginning to be my feeling after running it for a while, fuel consumption does seem quite high.

When I first got the doner it did appear to have been leaking from the overflow pipes so I replaced all of that lot.

So where do I start? dismantling and cleaning the injectors or is there some way of winding the pump back to deliver less ??