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Posted: Sun Apr 13, 2014 9:06 pm
by lollorock
At this point I hope it is the damaged wiring.

With the noid lamp I can see if the signal does not come to an injector ... or not?

Posted: Mon Apr 14, 2014 8:39 am
by DaveEFI
The injectors are in two banks of 4 - left and right - with a driver for each bank. Each injector has a series resistor in the +12v feed - the driver grounds the bank to complete the circuit. So all the grounds to each bank are connected together inside the ECU. This might help:-

Image

Posted: Mon Apr 14, 2014 2:43 pm
by lollorock
:eek :eek :nw :nw

Posted: Mon Apr 14, 2014 2:48 pm
by DaveEFI
Is that good or bad? ;-)

Posted: Tue Apr 15, 2014 9:22 pm
by Captainbeaky
If you do not have a noid light handy, listen to the injectors with a long screwdriver.

Place the head of the screwdriver on the injector, and the handle I your ear.

If the injector is working, you will hear it clicking.

Posted: Tue Jul 01, 2014 1:56 pm
by lollorock
Captainbeaky wrote:It sounds like you have a petrol injector stuck open ( or more correctly, being commanded open permanently)

I have had reliability issues with the injector emulators before on my 1991 RRC on LPG - they use relays that can stick - and short out a bank of injectors. Also prone to water ingress.

You may well have a problem with these emulators, or their wiring.
and the winner is... :D :D :D