Thread: idle ok light throttle ok wide throttle Bad

Have you tried another set of injectors? it's quite easy to fit a bunch after you undo the plenum top with the 6 allen key head bolts. My brother's old 3.5 ran OK with the MAF altered but another set of injectors made it much much better.

Not sure how similar the 3.5 is to the 3.9 however symptoms are the same as I recently experienced.
I had a crook water temp sensor that communicates with the ECU.
Be sure that you purchase the Britpart replacement where your socket goes onto the metal housing as the Lucas replacement goes onto a plastic part of the sensor which created challenges.
Cheers,
Lee

Originally Posted by Foxspell

Not sure how similar the 3.5 is to the 3.9 however symptoms are the same as I recently experienced.
I had a crook water temp sensor that communicates with the ECU.
Be sure that you purchase the Britpart replacement where your socket goes onto the metal housing as the Lucas replacement goes onto a plastic part of the sensor which created challenges.
Cheers,
Lee

Sounds like you had the cold start injector running. I've check the manual (bible) and it does not clearly state the cold start injector only activates when cranking. It talks about a temp range. This would make the car run rich but i wouldn't have though it would create this many issues. I did notice the wire had come off me sensor but it didn't bring up any light on the dash or anything. But the thermo fans were going flat out.

Originally Posted by bee utey

Have you tried another set of injectors? it's quite easy to fit a bunch after you undo the plenum top with the 6 allen key head bolts. My brother's old 3.5 ran OK with the MAF altered but another set of injectors made it much much better.

While this seems like an obvious next step. I'm really hoping it isn't injectors because the cost an awful lot.

I disconnected one injector at a time to see if it made the engine run different at idle and it did. So i'll pull them out again, as i changed all the seals recently, after i change the temp sensor.

Thanks for your help fellas! I need it running for the high country ANZAC day weekend and i'd almost giving up

Originally Posted by Jazzman

While this seems like an obvious next step. I'm really hoping it isn't injectors because the cost an awful lot......

Not necessarily. Get yourself a set of Bosch Gen III off eBay US, and it'll cost you about $100.

Originally Posted by sheerluck

Not necessarily. Get yourself a set of Bosch Gen III off eBay US, and it'll cost you about $100.

RRC 3.5 doesn't run those injectors, they are hose tail types. You need some off a VL Commodore, XJ6 Jag or Rover 3500 saloon. I can ask a customer of mine if he still has any injectors to suit, he supplied the first lot that went into big bro's RRC some years ago. Personally I'd put up a wanted ad on aulro for a set, someone's shed is bound to have some.

Originally Posted by bee utey

RRC 3.5 doesn't run those injectors, they are hose tail types. You need some off a VL Commodore, XJ6 Jag or Rover 3500 saloon. I can ask a customer of mine if he still has any injectors to suit, he supplied the first lot that went into big bro's RRC some years ago. Personally I'd put up a wanted ad on aulro for a set, someone's shed is bound to have some.

Ah, ok. I assumed that the 3.5 used the same Lucas injectors that can be easily replaced by the Bosch ones. My apologies for any misdirection.

Take a photo of them and I'll get you a set for a small fee.. I've got a heap from motors I've stripped I'll pick out the best ones for yah