Rough running

[Paulprior]

Hi Blitzracing, i see that RG will show the injector duty cycle, but it seems to be for both banks, can i read and understand something from that ??
As it seems that a Lambda sensor fault (disconnection anyway) will not throw up the misfire are there any other circumstances possible that might overdose one bank??, the only other possibilities i can imagine at the moment are a short term short circuit on one of the injectors itself or on the cable back to the ECU, but i think that this would be erratic in nature, while my problem is very consistent at least on correcting itself, just inconsistent on when it happens.

Just off for an MOT now and then i will take the car off the road for the winter where i will primarily tart up the engine bay along with a few other little bits and pieces so just wondering if there was anything usefull i might do at the same time ?,otherwise i guess it a 2 channel scope connected full time on the injectors for next year

Any thoughts greatly appreciated as always

Paul

[Paulprior]

Unfortunately i previously measured the injector supply voltage and from ECU output to earth, obviously on my DVMs, i will do it differently next time, i think a 2 channel scope with recording ability will be the way to go due to the erratic nature of this problem, one thing that suggests to me that its not an shorting problem is that it has been there probably a very long time without getting worse, 3 years with me as well as having the previous owners invoices from TVR specialists trying to track down random ignition system problems.

I have no previous experience with a V8, would anyone know how it feels with one full bank not running ??, if im driving at 50 to 60 and it happens i can continue to drive but cannot really accelerate, just trying to understand if my current thoughts are somewhere near on track ??