95 Montero tach not working

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Sep 11, 2019 | 11:59 AM

#21

sjeff35

Junior Member

Joined: May 2019

Posts: 13

From: New Mexico

Just throwing this out there, where the pre-96 models aren't OBDII compliant, you don't need the MUT to read them.

This company in New Zealand has a software and cable combo that will read codes, and let you activate some of the "actuators" fuel pump, injectors, ABS stuff...

https://evoscan.com/

I purchased the 1.3D cable and it works! It's a little touchy, I keep having to unplug the cable to get the software to read. It also does logging!

https://evoscan.com/evoscan-gps-obdi...alogging-cable

Dec 14, 2021 | 03:02 PM

#22

GOLIGHTLY

Junior Member

Joined: Dec 2021

Posts: 3

@Marksroberts61 Do you happen to know the part number for that wiring harness that connects to the three temp senders on the water pipe? Trying to start tracking one down after discovering some horrific work by PO, and can't seem to locate that in the FSM. Thank you!

Jan 28, 2022 | 10:15 AM

#23

Mec101

Junior Member

Joined: Jan 2022

Posts: 1

Quote:

Originally Posted by ceharlow

Im new to this board, and i'm hear for the tach issue and and ecu question. I have a 95 montero SR 3.5l 24 valve.
I been reading, but have not found a solution so far.

First, does a 1995 montero Sr support odb2. I have found 1996 listed as first year in some places and 95 listed in others.
I have never got it to talk a single word, and i have tried . even bought a Mitsubishi obd2 meter .
i've ohmed the data pin on odb2 plug to ecu, looks good a short, , but no odb2.
I am wondering if this is related to issue #2, tach does not work reliably. I replaced the orig tach, with an ebay purchase. the only time it has worked is when its cold out.

, Vin # , i'll add as soon as i find it again, it decides what is what if you have the decoder ring

thanks in advance for any help
chris

it is not OBD2 it should be OBD 1.5 1995, to my knowledge, was the only year that 1.5 existed.

Dec 3, 2022 | 06:06 AM

#24

1960StudebakerHawk

Senior Member

Joined: Jan 2019

Posts: 483

So, no definitive answer on how to check to see if there is an input signal going to a tach that is not working?

Looks like alot of topics were discussed, but no clear answer regarding this.

I have a tach that has suddenly stopped and is staying at about the 2k mark.

May 23, 2023 | 07:43 PM

#25

Mistress_Rachel

Junior Member

Joined: May 2023

Posts: 9

I'm a tab late to the party but here anyway. 94 and 95 SR both have the OBDII plugs. Codes can be read with a paper clip. Plug one end into the 1 pin and the other end into the 5 pin. Turn key to start but don't start.
Check engine light will flash
Long Flash is tens
short flash is ones
so 2 long flashes and 4 short flashes would be 24 Vehicle speed sensor and so on.

11 Oxygen sensor fault. 12 Airflow sensor fault. 13 Intake air temp sensor fault. 14 Throttle position sensor (TPS) fault. 15 Idle speed control (ISC) motor position sensor fault. 21 Coolant temp sensor fault. 22 Crankshaft position (CKP) sesnor fault. 23 Camshaft position (CMP) sensor fault. 24 Vehicle speed sensor (VSS) fault. 25 Barometric (BARO) pressure sensor fault. 31 Knock sensor fault. 32 MAP sensor faulty. 36 Ignition timing adjustment signal fault. 39 Oxygen (O2) sensor fault. 41 Injector(s) fault 42 Fuel pump fault. 43 EGR fault. 44 Ignition coil (cylinders #1 & #4) fault. 52 Ignition coil (cylinders #2 & #5) fault. 53 Ignition coil (cylinders #3 & #6) fault. 55 Idle air control (IAC) valve position sensor fault. 59 Rear Oxygen (O2) sesnor fault. 61 Transaxle control module torque reduction signal fault. 62 Variable Induction control (VIC) valve position sensor fault. 71 Traction control (TC) vacuum valve solenoid fault. 72 Traction Control (TC) vent valve solenoid fault.

I am curious how the tach situation turned out? Was there any resolution to the problem?

May 20, 2025 | 04:35 PM

#26

Jgonzalez1975

Junior Member

Joined: May 2025

Posts: 1

I have a Montero 1995 California version, I just bought a MUT2 scanner with the cable for the OBD2 wannabe connector (pre-OBD2 1996). I jus found out that I also needed to buy a ROM PACK to read the computer. I’m more of a techy person and a DIY person. Does anyone know where I can get the ROM PACK for the MUT2?
I guess I got tiered of depending on mechanics in Costa Rica