Lucas Part

[pasqua]

Hi,
I'm (desperately) looking for an injector power resistor unit for my 84 350i.
It is a Lucas system 2PR part number 73184A. I can't find it anywhere.
From what I understand it is the same used in Jaguars xj-6 from 80 to 87.
I found the following infos:
-XJS used a similar one but the part number is 73184B
-Ranger Rovers used a similar one but the part number is 73184D
Are they interchangeable?

Any help in founding this part very appreciated (by me and by 4 cylinders on my car who don't work because of the faulty power resistor)

Thanks

[gsx600]

Hi where abouts are you, as I have a spare one, and possible another soon when I bin my whole system

[TVRleigh(BBWR)]

Also they are allways on ebay.

[chedder]

Hi, I have a spare 2pr and am based in the North West, if you need a loaner, I do know of a Breakers yard in Southport that has one for sale (kowarskis) you should be able to get the number from Maureen

[pasqua]

Great!
I'm in central London,
I sent you a private message with my contact details

[gsx600]

Ok I'll read it when I get in tonight

[gsx600]

Quick thought, but are you sure it the diode pack and not the ecu,as I seem to remember that the ecu fires one bank at a time - (Wedgie where is ya for confirmation?) so could even be the ecu ? - (if I remember correctly)

[pasqua]

gsx600 said:

Quick thought, but are you sure it the diode pack and not the ecu,as I seem to remember that the ecu fires one bank at a time - (Wedgie where is ya for confirmation?) so could even be the ecu ? - (if I remember correctly)

I sent the car at the mechanic (10 days ago) because it was running very rough.
He first found the airflow meter was faulty and had it refurbished, then he found the ECU was faulty and also sent it for refurbishment.
He says that now one side work perfectly and the other not at all. He noticed that on that bank the power resistor was sending wrong reading, so he argues:
-It was the faulty power resistor that made the ECU faulty in the first place
-Once the power resistor is changed it will run fine

Does it makes sense?
(ps: I saw some similarity with some engine problem chedder describes in some thread)

[gsx600]

Hi just got home and checked mine, it is the D version, but did come off my 350.

Also just remembered I had another problem on the wedge and it was the connector plug that fits into the 2PR, had it rewired and the other bank started to work again

Anyway I'll call you tomorrow from work and you can always try mine and see if it cures or does the same

[honestjohntoo]

pasqua said:

I sent the car at the mechanic (10 days ago) because it was running very rough.
He first found the airflow meter was faulty and had it refurbished, then he found the ECU was faulty and also sent it for refurbishment.
He says that now one side work perfectly and the other not at all. He noticed that on that bank the power resistor was sending wrong reading, so he argues:
-It was the faulty power resistor that made the ECU faulty in the first place
-Once the power resistor is changed it will run fine
Does it makes sense?

No! An Efi with faulty AFM, ECU & Resistor Pack sounds like expensive coincidence especially if its a simple connector/wiring problem. An unlikely short circuited Resistor Pack might wreck an ECU, as might a mechanic (?) poking around. Logical wiring, air-leak & component tests should come before wholesale component repair/replacement.
http://www.vintagemodelairplane.com/pages/Rover_Te...

[pasqua]

honestjohntoo said:

pasqua said:

I sent the car at the mechanic (10 days ago) because it was running very rough.
He first found the airflow meter was faulty and had it refurbished, then he found the ECU was faulty and also sent it for refurbishment.
He says that now one side work perfectly and the other not at all. He noticed that on that bank the power resistor was sending wrong reading, so he argues:
-It was the faulty power resistor that made the ECU faulty in the first place
-Once the power resistor is changed it will run fine
Does it makes sense?

No! An Efi with faulty AFM, ECU & Resistor Pack sounds like expensive coincidence especially if its a simple connector/wiring problem. An unlikely short circuited Resistor Pack might wreck an ECU, as might a mechanic (?) poking around. Logical wiring, air-leak & component tests should come before wholesale component repair/replacement.
http://www.vintagemodelairplane.com/pages/Rover_Te...

Maybe I'm very unlucky with mechanics, but this chap seems competent and honest (Paul from AutoAction in Hendon).
Also I had a look at the link you sent (thanks)
http://www.vintagemodelairplane.com/pages/Rover_Te...
and it says (page 4) that if the reading from the power resistor differs from 6ohms +-1 the pack should be changed, and if I remember well Paul said the reading was over 10ohms.
To me that also seems to indicate that is not just a problem of rewiring but something is wrong inside the unit.
I still haven't got hold of the part.
Any help greatly appreciated.

[gsx600]

Hi there item posted at lunchtime, may get it tomorrow or monday at latest.

Hope it cures your problem

[TVRleigh(BBWR)]

If you need to buy one
http://cgi.ebay.co.uk/Rover-V8-3-5EFI-Power-Resist...

[gsx600]

Hi Pasqua

Is the wedge running now , did the garage get the resistor pack I sent and did it solve the problem ?

[pasqua]

gsx600 said:

Is the wedge running now , did the garage get the resistor pack I sent and did it solve the problem ?

Hi, yes the garage said it worked well (I haven't seen the car yet). I sent you an email. Thank you very much for your help.