bank dropping out (again) and over revving

[FlipFlopGriff]

Its happened twice in about 750 miles so difficult to repeat.
I'll sniff the exhaust next time to see which bank it is (assuming I survive).
FFG

[Adrian@]

Sadly the manifold joins at the main two into one...(OR remind me if that system does not) and even then 4 tail pipes will confuse your nose. LOL
Adrian@

[FlipFlopGriff]

Adrian@ said:

Sadly the manifold joins at the main two into one...(OR remind me if that system does not) and even then 4 tail pipes will confuse your nose. LOL
Adrian@

Correct, so no use whatsoever then.
It smells out eh back so must be one side or the other.
I'll try the speed transducer wiring and have a look at the wiring to the injectors but after that its down to the experts.
FFG

[cureton]

Could you not hook up an ECUmate or Rovergauge first - pretty sure a malfunction like that should have thrown a fault code.

[FlipFlopGriff]

cureton said:

Could you not hook up an ECUmate or Rovergauge first - pretty sure a malfunction like that should have thrown a fault code.

Will look at the suggested cures and connect the ECUmate every time I use it from now.
FFG

[paulathome]

Hi FFG Just read your problem.
I had exactly this fault about 4 years ago and was cured by turning off the ignition, waiting a few minutes then restarting. It did this for about 3 years and was so infrequent that it took 3 years to track it down.
I had the loom out and checked everything including swapping the ECU for another and still the fault persisted about once every 2 months.
Eventually in a Tesco's car park at 8 o'clock at night in the pouring rain it wouldn't clear.
I had a noid light with me and the near side bank of injectors were shown to be permanently squirting fuel straight into the engine and flooding the near side bank.( even when the engine wasn't running)
After an hour of switching the ignition on and off I gave up. With the noid light connected I disconnected each injector plug on the nearside bank and noticed when I disconnected injector 7 the noid light went off.
I drove home on half an engine and left it until the following morning which was a Saturday.
Had a look on the Saturday and the fault had not cleared the noid light came on as soon as the ignition was turned on. However when disconnecting injector 7 the noid light went out.
Further investigation with a multi-meter found that injector number 7 was shorted to ground on one side.
As the ECU grounds one side of the injectors to make it squirt this short made all injectors on that bank inject all the time as soon as the ECU is supplied with power.
A new injector fitted,(well a full set) fault cleared.
It only took 3 years to fine.
Just a note however, be very careful as you are at risk of blowing the engine up through a hydraulic engine lockup. When those injectors are open there is a hell of a lot of fuel going in.

Good luck and hope it's an easy fix.
Paul.

[Loubaruch]

I was going to suggest using a Noid Light to check if the correct pulses are arriving at the injectors, a most useful aid to fault finding:

http://www.bodyshop-tools-supplies.co.uk/product_v...

Many different suppliers on line.