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TD42T with eletric injector pump. witch wires make it go

Tech Talk for Nissan owners.

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TD42T with eletric injector pump. witch wires make it go

Post by extra niss »

hay everyone
i just got a GU witch is half converted to a TD42T ( the very later modal one factory intercooled) and it has 3 wires coming out if the pump and 2 wires going into a solenoid or senser in the bottom of the pump.
i have been told i need to put power to 2 of the wires to make it go. but i have no idea witch 2 wires. anyone dune it before or can help me out
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Post by PGS 4WD »

That is the immobilizer model pump. I cant' remember which wire, it's one of the three. If there is a red one that rings a bell?? Sorry thats all I can recall.


joel
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Post by extra niss »

thanks heeps mate that gives me some where to start
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Post by Dzltec »

You will need to remove the immobilizer unit. It receives a signal from a main control unit to make it start. If you have all the modules and wiring then all should be ok if connected correctly.


Andy
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Post by extra niss »

Dzltec wrote:You will need to remove the immobilizer unit. It receives a signal from a main control unit to make it start. If you have all the modules and wiring then all should be ok if connected correctly.


Andy
i havn't got the computers and wiring for the immobilizer is there any way around it or have i got to change the pump or part of the pump
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Post by UGOTNUFN »

extra niss wrote:
Dzltec wrote:You will need to remove the immobilizer unit. It receives a signal from a main control unit to make it start. If you have all the modules and wiring then all should be ok if connected correctly.


Andy
i havn't got the computers and wiring for the immobilizer is there any way around it or have i got to change the pump or part of the pump
You will also need to power up the TCV (Timing Control Valve) at the bottom of the pump,normally a boost sensitive switch is the best way to switch it on and off.
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Post by Dzltec »

The immobilser can be removed, however it is difficult to do as the use sheer bolts to locate it. Having a timing control valve throws a spanner in the works as it will make the pump have full advance at all times. It usually recieves a duty cycle controoled voltage to control the opening time which controls how much injection advance you have. This can be changed to a mechanical system but involves changing the main housing.


Andy
www.diesel-tec.com.au Ph 03 9739 5031
Ball bearing turbo upgrades for factory turbo vehicles. Got a diesel question just ask.
Home of the twin turbo shorty and many 150rwkw+ patrols.
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sw1
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Post by sw1 »

UGOTNUFN wrote: You will also need to power up the TCV (Timing Control Valve) at the bottom of the pump,normally a boost sensitive switch is the best way to switch it on and off.
??

its pulse width modulated, a on off switch isnt going to do much here.
2003 GU Patrol ST 4.2L Diesel Turbo Intercooled
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Post by giantracing »

put a hoob switch in the cooler to turn on and off using boost pressure, it makes a big difference when driving..... but with out using it , it will still start... we modify these on late model gu's...
build em tuff, drive em ruff.........

Custom 4wd Creations Brisbane
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Post by UGOTNUFN »

sw1 wrote:
UGOTNUFN wrote: You will also need to power up the TCV (Timing Control Valve) at the bottom of the pump,normally a boost sensitive switch is the best way to switch it on and off.
??

its pulse width modulated, a on off switch isnt going to do much here.
On and off with a Hobbs switch set to 3Psi is fine
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Post by extra niss »

ok thanks heaps everyone that has been a big help
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Post by PGS 4WD »

I got one going that had failed in the immobilizer just with a voltage at one of those three wires, possible because the unit was faulty. It's worth a try.

Joel
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-4wd Dyno & tuning
-Qualified mechanics
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Post by extra niss »

i drilled the illommobiliser off yesterday and exposesed the fuel cut solenoid. to ezy :) somthing went right for a change
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