Tech 2 - What does it do?

[Schurkey]

Which software cartridges are included? What vehicle adapters?

 

[studigggs]

The listing is below, please let me know if anything obvious is missing and I'll pick it up.

Adaptors (18 total) include:

MT2500-70 FRD-4
MT2500-52 TOY-2
MT2500-20 FORD-1
MT2500-20a FORD-1a
MT2500-77 HON-1
MT2500-40 NISS-1
MT2500-90 Multi 1
MT2500-42 Multi 2
MT2500-49 Jeep-1
MT2500-51 Hyundai 2
MT2500-53 Mazda 1
MT2500-30 CHRY-1
MTR2500-31 CHRY-2
MTR2500-90 Multi-1
MTR2500-32 Jeep-1
MTR2500-40 Nissan 1
MTR2500-10 GM-1
MTR2500-58 Nissan 2


MTR2500-46B OBDII

Keys (15 total) include
K-1
K-2
K-2a
K-3
K-4
K-5a
K-7
K-8
K-9
k-12
k-13
k-14
k-15
k-16
k-18
k-19
k-22
k-24 (Honda)
Cartridges include:
1401 asian import
2401 trouble shooter asian import
2794 antilock brake gm -ford jeep chrysler through 1994
2901 troubnle shooter gm ford jeep chrsyler through 2001
6499 tranny trouble shooter asian imports through 1999
1001 Primary cartrdige GM Ford Jeep Chrysler through 2001

 

[Schurkey]

I see GM-1 but not GM-2 or GM-3. The '3 is rare, I think it's only for certain anti-lock brakes. Even I don't have that one.

Primary cartridge domestic through 2001 may not go back farther than '96. Far as I know, the "latest" cartridge that goes back before '96 ends at '99. That's what I have--'80 1/2 to '99, '96--'06.

But maybe I'm wrong.

 

[studigggs]

you are correct. I zoomed in on the pic of the Primary and it states '96-'01. Just snagged a Primary through '99 that was for sale as well. Many thanks for the heads up!

 

[hatzie]

I see GM-1 but not GM-2 or GM-3. The '3 is rare, I think it's only for certain anti-lock brakes. Even I don't have that one.

Primary cartridge domestic through 2001 may not go back farther than '96. Far as I know, the "latest" cartridge that goes back before '96 ends at '99. That's what I have--'80 12 to '99, '96--'06.

But maybe I'm wrong.

GM-1 (MT2500-10) & GM-2 (MT2500-11) are no doubt ECM data line adapters. Not sure what the difference between these adapters is... There were two common ECM data lines used on the 12 terminal ALDL adapter Terminal E (160baud) and Terminal M (8192baud).
GM-3 (MT2500-12) is the ABS adapter.

Space on the cartridges was limited so a GM only cartridge is likely better than the GM/Ford/Chrysler all in one cartridges.
Probably the most useful GM cartridge would be the GM Primary 1980-1/2 to 92 or 93. Getting one with an end date just a couple years past your model year is likely to yield the best coverage.
Why? You want 1-2 years of coverage revisions but not too many.... Later revisions begin to loose functionality that earlier revisions had. As coverage increased for the newer models the older model coverage was neutered as a necessity to make space.

 

[Schurkey]

GM-1 (MT2500-10) & GM-2 (MT2500-11) are no doubt ECM data line adapters. Not sure what the difference between these adapters is...

GM-2 is the early, 5-pin unit.

Space on the cartridges was limited so a GM only cartridge is likely better than the GM/Ford/Chrysler all in one cartridges.
Probably the most useful GM cartridge would be the GM Primary 1980-1/2 to 92 or 93. Getting one with an end date just a couple years past your model year is likely to yield the best coverage.
Why? You want 1-2 years of coverage revisions but not too many.... Later revisions begin to loose functionality that earlier revisions had. As coverage increased for the newer models the older model coverage was neutered as a necessity to make space.

Thanks for stating outright what I've puzzled over for a few years.

I thought some of the cartridges I used to have, displayed more info than others. I bet this is why. Until now, I assumed that the software was corrupted. I didn't know it was corrupted intentionally.

 

[studigggs]

Got the mt2500 in last week and have been driving around with a brick on my dash for a few days. really cool to see realtime data for the first time after owning this truck for 26 years.

I do see that the 'knock' indicator comes on everytime i accelerate (even mildly), and stays lit when im above 50 mph. Is this normal ECM control of spark timing or should i dig deeper? It does have the original knock sensor from 1990.

 

[Schurkey]

I wouldn't think it should be lit constantly above 50 mph. Mine (1988 K1500 5.7L) isn't.

1. Sure the scanner is programmed to show knock-sensor info on that LED?
2. What does the screen show for knock-sensor data (not the LED)
3. What happens when you idle the engine, and rap the intake manifold or cylinder head with a brass hammer? Does the timing retard and the knock sensor show activity?
4. What about the OTHER data when the knock-sensor LED is lit? Fuel trim numbers, coolant temperature, O2 sensor voltage and cross-counts, EGR activity, etc.
5. DOES THE EGR WORK?
6. What is the fuel pressure at 50+ mph.

 

[studigggs]

I wouldn't think it should be lit constantly above 50 mph. Mine (1988 K1500 5.7L) isn't.

1. Sure the scanner is programmed to show knock-sensor info on that LED?
2. What does the screen show for knock-sensor data (not the LED)
3. What happens when you idle the engine, and rap the intake manifold or cylinder head with a brass hammer? Does the timing retard and the knock sensor show activity?
4. What about the OTHER data when the knock-sensor LED is lit? Fuel trim numbers, coolant temperature, O2 sensor voltage and cross-counts, EGR activity, etc.
5. DOES THE EGR WORK?
6. What is the fuel pressure at 50+ mph.

Great to know its not normal. Many thanks. The engine does feel sluggish once it hits closed loop. I'll dig into troubleshooting this weekend starting with your list. I know I have a oil leak coming from the rear of the intake manifold. Parts are in, just need time to install. Its like 2 drops per day, so not excessive. for now:

1) yes, i checked 'custom settings' and the LED goes on and off with the "yes/no" data in test drive mode
2) All i get is a 'yes/no' for knock. I can't see any voltage values.
3) I will test this.
4) i'll have to test drive again and get more specifics. I know the coolant temp stays right at 195 as that was one value I kept an eye on.
5) I will test this
6) New fuel pump 4 years ago, but i dont have a way to measure FP at speed.

 

[PlayingWithTBI]

I do see that the 'knock' indicator comes on everytime i accelerate (even mildly), and stays lit when im above 50 mph. Is this normal ECM control of spark timing or should i dig deeper? It does have the original knock sensor from 1990.

I wouldn't think it should be lit constantly above 50 mph. Mine (1988 K1500 5.7L) isn't.

^^^X2 it shouldn't knock anytime really, if it's tuned right with AFR and SA. My 88 350 used to show some KCs at WOT @ 1,000 - 3,000 RPM but none at higher revs. No KCs while cruising. Pull your spark plugs and look for pepper specs on the insulators, if so, you have detonations.