I decided to fit my 555's and the JD chipped ECU today and duly got stuck in to stripping the plenum off. No probs at all as Jimmer had recently done a rebuild and everything just flew off without any problems. Removed the fuel rail with the standard injectors in and fitted the new fuel rail containing the 555.s. All back together albeit with a bit of cussing trying to get the passenger side PCV valve pipe back on. A b#st#rd I have to say. Anyway on to the the best bit.....the swapping of the ECU. Now normally on most cars this would be a piece of cake but not on mine. It had previously been fitted with an HKS F-CON which was disconnected recently when the car was overfueling badly, and a SAFC. Now at the RR recently at Ian jefferies they reported that it was still overfuelling which was interfering with the higher revs and this had contributed in a loss of power, so with the fitting of the JD chipped ECU I disconnected the SAFC. It started first turn and ticked over superbly, pressed the throttle and all hell lets loose. Black smoke like I was burning tyres and hunting.....ooooops. I think by disconecting the SAFC I have interupted the ECU circuit, hence the severe over fueling. Tomorrow I will reconnect the bloody thing and see what happens. The moral of this story is, do one mod at a time and run the car, it makes it far easier to fault find when things go wrong.

Edited October 25, 200817 yr by Old Zed

Do it tonight John! It's still light out there! LOL

Awww no matey :( lets hope it is only something very easy to fix, if not i will be around to help ya out / learn more about these cars if you want a hand!

That sounds scary...:(:( I hope you solved the problem m8;)

a problem shared is only half as bad! thats a lesson i learned.good luck Im going down that mod soon.:)

 

dan.:smash:

Well, what a right old mess exists around my ECU(s). The HKS F-CON is still hardwired in but not powered up anymore. I reconnected the SAFC, obviouly wrong as the screen did not light up and my rev counter started bouncing around like disco lighting......gulp. A touch of the disheartened started to invade now especially as I was also recovering from a night on the lash with Jimmer. I then decided to think positive and inspect the loom where the SAFC was connected and work out was connected on parallel and what was connected in series and hopefully re-connect the original wiring without the damn thing in the circuit. Having done this.......the car won't even start and my next thought is a gallon of petrol and a box of matches, luckily it was in the garage and I could not push the damn thing out as it is up a slope. I then changed the ECU back to my original and it started, well sort of, it sounded as though it was on 3 cylinders but at least it started which proved the the wiring was working. re-installed the chipped JD ECU and....whoosh, its firing on all 6, smooth as silk ??? what the fook. That ECU connector is so mickey. I'm excited now and want to drive it. A quick clear up, and lock up and out for a run. Ah, the smiling is back, Houston we have ignition............gulp. It quick, very quick and yesterday although it was not raining, the roads were damp and I was continually losing traction and the back end shaking that ass. It's not perfect yet but it certainly recharged my pacemaker yesterday, just great. I shall be getting the wiring proffessionally looked at (Daryl where are you) to once and for all, get it sorted, and of course the Profec B will need to be fitted, but that's a job for you know who.

Yeah you need to be careful not to over/undertighten the ECU connector they can be quite finnicky, bet your glad it was reasonably easily sorted though.

Good to hear John

Well done matey! At least she is good to go now, roll on the next meet :D