Neoman1995

So after wiring up a stagea series 2 engine and auto ecu into my GQ patrol, I have it running good now but when I go to turn the car off the engine will still run, if I disconnect pin 24's fuse it shuts off instantly but everytime I try a different ignition sorce it will still stay on after the key is off, would anyone know if I run this wire straight off the ignition switch should that solve my problem? Anyone who has done a r34 engine swap, where did you run this pin to?

Hi dudes I have the same engine (RB25det neo), from a rear wheel series 2 stagea which I have dropped into my gq patrol, Same deal as you, it has traction controls and abs as standard and I'm not using either of them, just the ecu! I'm about 90 percent done with the conversion and have the motor running nice but the ecu is throwing fault code 44 which is related to pin79 being not connected like yours, Engine is not throwing code 46 anymore, to achieve this I have done the "secret squirrel tweak" to pin 51 which involves taking a power sorce of around 5.15 volts from pin 48 (throttle position sensor power) and running it through a series of diodes to drop it to the desired voltage, then connect it directly into pin 51. I had to run 5 diodes inline to reach the voltage it needed to see (approx 3.4v). So I'm basically going to do the same with the multiplex communication line (pin 79, code 44) to erase that code aswell as I know this actually works. I'll probably take the 3.4 volts from pin 51 and diode it down to 2.0v (what it wants to see) Hope this helps ^.^

Ok so the scan tool diddnt support the ecu protocol:'( so I had to wire pin 17 ( malfunction indicator lamp) to the patrols glow plug fault light and use the paper lip method, It pulled codes 12(MAF signal wire), 21(ignition switch signal), 26 (turbo pressure sensor signal wire) and 44(TCS/ABS communication line) I worked out the issue with the maf sensor and ignition signal so now the computer is only throwing codes 26 and 44 now after a clearing or fault codes and a restart, and engine is revving more happily but still coughing So now the question is about the remaining fault codes 26 and 44, If code 44 isn't going to throw the check engine light (as according to the service manaul) should I not worry about this fault code?, or should I fake the ecu input of around 2.0volts to the communication line (pin 79) to trick the ecu into thinking everything's all good? Code 26 pulls the check engine light, is it worth getting the turbo pressure sensor and connecting it up or just fake the inputs too?

I had another read of the engine manaul and found that if the tps is open/shorted across the power circuit, the motor will use the base idle tune and not inject any extra fuel when accelerating, my exact symptoms, so I checked and boom, the earth was not connected, so now I'm thinking that the ecu's tps code needs to be cleared as I've tried to start it with the tps hooked up properly and the same thing happens, My new question is about the scan tool, it appears nissan consult protocol is used with the c34, will I be able to use a newer OBDII scan tool to clear this/any codes?

I Have converted my gq nissan patrol to a c34 series 2 auto stagea motor, it fires up and idles like a dream but as soon as any throttle is applied it coughs and splutters and barely gains any rpm I believe it could have something to do with the throttle control unit not being used so any wiring guru's that could shed some light on what could be happening