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your question is a little to vauge. Please clearify what exactly you are wanting to do.

yeah, grounds can be a major issue. one thing to check is the group of grounds that are attached to the to the intake manifold and make sure that the bolt is tight and that none of the wires are broken or whatever and also check that the ground cable from the battery is tight on the engine...

back probe OX at the ecu and make sure that you are getting voltage from the o2 at the ecu and make sure that it is very close if not the same as the voltage at the o2 itself. its seeming like the ECU is staying in open loop damn, to bad gainsville wasn't 2 to 2.5 hours away or I would take...

Yeah, Vc is both AFM and TPS. All the G ones like G- and G1 and so on, dont worry to much about those. They are the pickup coils in the CPS and they will have nothing to do with the problem that you are having. Mine were all in the 500 and 600 ohm range before i went full stand alone and...

what exactly is stripped?

one other thing about the ZT-2, make sure that the switch point in the softwear has not been changed. I just remembered that the switch point is changable on the ZT-2 to swing the closed loop control from the ECU rich or lean.

one other thing, check the resistance on the CTS and make sure that it is inbetween 4k and 8k ohms with the engine at operating temp. if its not somewhere in that range, then thats a problem also

I am beginning to wonder if there is actually a mechanical issue like a stuck open injector or something and its not electrical at all.

well not exactly, but an incorrect reading from the o2 can cause a incorrect Vf reading. so it possible

Wait, you said that you are getting 5.62 volts from the NB-sim. thats a problem there in itself being that that is a 0-1v circuit. I would change the all the ZT-2 grounds to a different location, sound like you are picking up electrical niose from the something. On another note, dont really...

Take it out for a quick run and see how she runs and just watch the AFR's during the heavy load conditions.

Yeah, the lack of O2 code has got me puzzled also. The lack of power, well as rich as he was running, there would diffinitly be a lack of power. Best power on a turbo engine typically comes somewhere inbetween 11.5 to 12.5 AFR's

I did think about the possibility of frying the NB circutiry, but probably not as it should and most likely had a diode in it for protection.

Yeah, there are a number of things that could cause the fuel cut to activate at such a low PSI. Mainly boost leak. One thing to remember is that the fuel cut from the ecu is not based on actual boost pressure, but rather air flow readings from the AFM. So when the cut actually happens, it...

best bet is to get rid of it unless you like techno and raving and want a light show!

Just read this entire thread. Quite interesting that someone stated to hook the SIM. NB output to the Vf........:nono: Anyways, yeah your Vf readings shoud be very close to what the Bosch 4wire was. Not 100% sure about the ZT-2, but every other WB system that I have delt with base the Sim...

well you could use the N/A one if you wired it up correctly, but you will get a MIL (check engine light) with a O2 heater circuit malfunction. (I dont remember what the code is though). Best bet, get the correct O2 and eliminate any potencial problems.

yeah, the turbo's all have 3 wire units, my mind was off in la la land cause I was thinking about my car which had a 4 wire but I had forgotten that I had changed it to a 4 wire inplace of the 3 wire. Like I said before about it being a good idea about using the heater circuit and jet...

yeah, you will have the later IC so you can you would need an extra 90 for the IC to TB pipe. you might be able to get-a-way with a single 180 U-bent inplace of the 2 90's

Its not that you need a spark at all, its that it has to be a 6 stroke design. I made the comment about the spark cause of what was stated about two cylinders firing at the same time. I was not sure if he understood that only one fires and the other is on exh. which also has an extra spark...