Removing NATS (Nissan Anti Theft System) from GU III 4.2TD Injector Pump

[nissannewby]

Just put it back as close as we could get it for now. Probably going to blank off the EGR and get it dyno tuned again I reckon. Hasn't been done since the exhaust went on five years ago or more.

Dave

Ok. It wouldn't hurt to get it checked with a dial indicator as the particular pump on yours can do weird things if the static timing is altered to much.

[nissannewby]

4.2 pumps aren't electronic. Just the black box that controls whether to power the fuel shut off solenoid.

Unless you're installing the ignition to detect the right key & all the other NATS stuff I reckon you'd have to make this mod anyway if you are putting the motor in something else like a GQ or other truck.

Not quite 100% mate. The later model td42ti did have some electrickery on and a very basic ecu. This uses inputs such as engine rpm, #1 injector lift, tps, coolant temp and one of the output controls the tcv (timing control valve) which is the plug right at the bottom of the pump that you were asking about.

[davejones]

Not quite 100% mate. The later model td42ti did have some electrickery on and a very basic ecu. This uses inputs such as engine rpm, #1 injector lift, tps, coolant temp and one of the output controls the tcv (timing control valve) which is the plug right at the bottom of the pump that you were asking about.

I stand corrected. Any idea when that started?

Guessing mine's affected. Which is disappointing as I really liked thinking it was simple...

[nissannewby]

I stand corrected. Any idea when that started?

Guessing mine's affected. Which is disappointing as I really liked thinking it was simple...

Yes it's when they became inter cooled from factory that the electrics were added. They are very simple mate and aren't any less reliable then the older style. If something in the system does fail there is no limp mode or anything as such and the vehicle for the most part will be completely mobile.

[drgtr]

To the blokes that had NATS issues. Im just trying to work out why it would fail and then thousands of ones out there are fine.

Did you guys do a lot of 4wding through mud or water?

[MudRunnerTD]

To the blokes that had NATS issues. Im just trying to work out why it would fail and then thousands of ones out there are fine.

Did you guys do a lot of 4wding through mud or water?

No it's pretty random mate. When mine went it had not been off road for months and months. Since I did mine I have seen this and my thread bumped countless times. This happens ALOT. I have since fitted an alarm with immobilizer. Happy days

[drgtr]

No it's pretty random mate. When mine went it had not been off road for months and months. Since I did mine I have seen this and my thread bumped countless times. This happens ALOT. I have since fitted an alarm with immobilizer. Happy days

Thanks Mate
I haven't had issues (touch wood) but I might get my mechanic friend to do it for me.

SO basically in a nutshell
Smash that black box open to get to the 1 wire protruding out. Then rejoin the middle loom wire to that one protruding wire?

I guess the scariest part would be hopefully not wrecking that 1 protruding wire in the process..

[drgtr]

Also are we the lucky ones being td42t being able to atleast have this option? What do the 3.0 guys do?

[MudRunnerTD]

Thanks Mate
I haven't had issues (touch wood) but I might get my mechanic friend to do it for me.

SO basically in a nutshell
Smash that black box open to get to the 1 wire protruding out. Then rejoin the middle loom wire to that one protruding wire?

I guess the scariest part would be hopefully not wrecking that 1 protruding wire in the process..

Here is my experience from the first post seeking advice on why the light was staying on to smashing off with a wood chistel..

http://www.nissanpatrol.com.au/forum...OBILISER+LIGHT

[drgtr]

lol yes I read that thread.

All I can say is you are brave and secondly thankyou for sharing as that gave us knowledge to save a lot of money or if we are stuck.

Im going to fraser island next year. I wasn't even aware of this NATS problem so im thinking I might get my mechanic mate to do before hand for me.