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[Vulpine]

HI
ECU light is on, so have done paperclip test and got codes:
43: Invalid boost pressure
81: Sensor injection start short or open circuit
Anyone give any advice on what causes these bad boys?
Has anynoe got a number 4 injector and boost pressure sensor for sale or just to borrow to fault find with?? Really need help here  :-/
cheers
Jon

[Vulpine]

HI
Changed fuel filter to see if that was problem and now the car wont start at all!!
Getting close to scrapping her now!!! 
Any ideas or help?
cheers
Jon

[Kneepad]

HI
Changed fuel filter to see if that was problem and now the car wont start at all!!
Getting close to scrapping her now!!! 
Any ideas or help?
cheers
Jon

This could leave you with an air lock in fuel line. Don't despair, more help will be along soon.

[Vulpine]

OK it appears my lift pump is dead. runs slowly in air but not in diesel. Car wont start for more than a few seconds
Unless these are repairable i need a replacement. Anyone got one or know of a cheap supply?
I know it wont fix the error codes but cant do anything else until she runs.
cheers
Jon

[Kneepad]

Have you checked the filter in the fuel tank. Cleaned mine about 3weeks ago and when I took it out I wondered how my car managed to run at all, there was so much sludge blocking it. See link to pump maintenance:

http://www.omegaowners.com/forum/YaBB.pl?num=1251298222

[Omegatoy]

dont know how far you are from a dealer or a scrappy, but 16quid plus the dreaded a a puegeot dealer buys you a straight end bulb pump from a early hdi, cut the rubber incoming fuel pipe put the bulb pump in the line, squeeze repeatedly with bleed screw on filter open, when diesel appears shut bleed screw and start, this pump has a one way valve in it and will not allow diesel to return to the tank via the main fuel line, however it can via the return line so occasionally in the mornings you may need to give it a couple of pumps!! did this on mrs omegatoys omega td when the lift pump died and although the car was sold three years ago AND 43000 MILES LATER this ahem temporary fix is still going strong and the lift pump is still dead!!!
ditto the above for bulb pump from scrappy!! HTH

[Vulpine]

oh btw i have a pump from a petrol omega. It looks slightly different to diesel one. Will it pump diesel? OR will it die very quickly? anyone know?
cheers
Jon

[Omegatoy]

rumour has it td used modded petrol pump but the petrol pump without modifying will try to pump the fuel at petrol presure for the injectors? wouldnt like to chance high pressure diesel going into the system!!! lol

[Vulpine]

hi
good news, after looking at it all again, the pump does work, but the connector block in the tank lid seems to be the issue.
Filter was dirty but not too bad.
So i need to wire up a bypass to this and all should be ok again.
Will update tomorrow.
Back to the fault codes: 81 and 43 - anyine got any suggestions???
The petrol pump by the way, is much longer and my one is actually jammed.  

[hoofing it]

code 43-Try replacing the vac pipe. The pipe your looking for is the one that  comes from under the manifold to the solinoid this could be clogged with oil.
code 81 is going to be the expensive one to fix I bought a injector4 in May and it set me back £156 on trade card also there's a 6 week wait for it.
Try taking it out, strip and clean it first

[Vulpine]

Thanks for that
code43 - I have replaced the pipe - no change 
code81 - I have stripped and cleaned the inj - no change 

[Vulpine]

OK fixed the lift pump - was the connector that clips onto the tank lid - tweeked that and engine fires up no probs.
But now the codes have changed:
code19 -  Incorrect RPM Signal - new
code81 -  Sensor injection start short or open circuit - same
Weird that it should change isnt it? Any ideas?

[aaronjb]

The fact that 41 disappeared and 19 arrived (presumably) without you changing anything, especially as all three faults you've shown so far could be electrical, makes me wonder if you don't have a wiring fault somewhere on a common circuit..

I wonder if anyone has a wiring diagram handy to know if all three share a common ground or connector somewhere?

[hoofing it]

Just somthing to try get a set of jumpleads and connect one from the negative on the battery to the engine and connect the other lead from the battery(negative) to the ecu.
This is to rule out a bad earth.
As for code 81 it looks like a new num 4 injector

[Vulpine]

tried the jumpleads but no joy