No condition to start, no voltage in injectors

NIKOJOHNJONE

MEMBER
1997 MITSUBISHI PAJERO
3.5L
V6
4WD
AUTOMATIC
104,656 MILES

Hello. Sorry for my English. I had burned my ECU, part number 362067 and a change it with part number 349231. Now my 6G74, V25W, crank and have a spark. But when I put key in on position, do not have injector voltage. Please, I need help. I am not a mechanic, but I want to know how my car works. Please, I need terminal voltage reference of my ECU md349231 and the injector drive md346802. Anyone have it?

Niko

5 Replies

KEN L

MASTER CERTIFIED MECHANIC
42,959 POSTS

Hello,

Here is a guide to help you check the power and grounds for the PCM and the engine wiring diagrams to help you do some testing to find out what the problem is:

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken

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Thursday, August 16th, 2018 AT 7:26 PM

NIKOJOHNJONE

MEMBER
6 POSTS

Hello. Thanks so much. I will reply with result of the job in four days.
Good day.

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Friday, August 17th, 2018 AT 6:26 AM

KEN L

MASTER CERTIFIED MECHANIC
42,959 POSTS

Please let us know what you find. We are interested to see what it is.

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Friday, August 17th, 2018 AT 10:55 AM

NIKOJOHNJONE

MEMBER
6 POSTS

Hello. Sorry, but I do not know if the problem is in injector driver or not? My Pagero gdi, 3.5 ltrs, 6G74, from 1997, V25W have a injector driver connector with 26 pins. 7 from ECU to injector driver, 6 I think to control ground injector in injector driver and 1 which I do not know, but are in 91? Position of the ECU terminal.
12 to injector driver to injector, 6 are ground and other 6 it should be posetive, but now without any voltage.
Other 6, 3 of them have 12 volt and other 3 are ground, and all have continuity in 2 terminal. And the last pin is empty.
Is it possible which the wire in position 91? Of the ECU control the injector driver transistors?
Sorry for my English.
Niko

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Thursday, August 23rd, 2018 AT 7:32 AM

KEN L

MASTER CERTIFIED MECHANIC
42,959 POSTS

Pin 91 is for stick shift so do not concern over that. I would check the engine control relay. Here is a guide to help:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

They also call the engine relay a PCM relay. Check out the diagrams (below). Please let us know what happens.

Cheers, Ken

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