*** Tuner Pro / WinFlash / DataMaster - No connection with '93 SD LT1 ***

[JCzNova]

Anybody have issues getting these programs to connect to a '93 PCM? Is there something I am missing?

Says connected, but the "dash" stays on 4600 rpm, and none of the gauges move at all. Won't log anything either.

Was trying to check what the ECM thought coolant temp was as I am fighting a cooling fan issue right now.

Thanks all in advance!

[Fastbird]

Try using just datamaster. Make sure the communication is set up on the right port. What cable are you using?

[JCzNova]

Try using just datamaster. Make sure the communication is set up on the right port. What cable are you using?

Ummmm, ALDL from.......... OBD Diagnostics.

When I open the setup on Datamaster ALL the ports are grayed out. It is port 7 on my other software and I just connected it to the Nova at the Shootout. Head scratching continues.

[Fastbird]

Ok, datamaster isn't seeing the cable probably. You using a USB to Serial converter? Drivers updated?

[JCzNova]

Ok, datamaster isn't seeing the cable probably. You using a USB to Serial converter? Drivers updated?

Yes and yes. Gonna mess with it some more tomorrow. Wasn't sure if the difference in being a 93 is what was hanging me up.

[JCzNova]

Update. A regular Innova OBD-I scanner won't even connect to the ECM. ECM won't tell the fans to turn on, and had intermittent issues the past couple days.

Have to pump or hold the pedal down to get it running.
Died on me a few miles down the road. Got it started and back home.
Started right up tonight, then would idle a second and die. pedal it to keep it running a few seconds and it would idle.
ABS INOP light on out of nowhere.
SES Light on, and I can't see the codes because nothing will connect to it. Jump the DLC and I just get a constant flash of the SES, not codes flashing.

Bad ECM ? ? ?

[popo8]

did u check fp?

MEMBER @ LTXtech.com

[JCzNova]

did u check fp?

MEMBER @ LTXtech.com

It was dark by the time I got home. Will try again tomorrow. Just bothers me now, that NO scanner will connect to it what so ever. :frustrated:

[Fastbird]

Before condemning the ecm check all your grounds.....especially with the abs light coming on as its independent of the ecm. If you want another ecm to try I'll ship mine to ya since car won't be running for a while. Just lmk.

Posted from my Rooted and ICS'd Rezound

[79LT1Monte]

If the fans run when you jumper the dlc I would say the pcm is not the problem. What does that scan tool use for power? Cig lighter or clamps to the battery?
I know our obd1 scanner doesn't communicate if you don't have a good connection.


Sent from my GT-P5113 using Tapatalk 4

[JCzNova]

If the fans run when you jumper the dlc I would say the pcm is not the problem. What does that scan tool use for power? Cig lighter or clamps to the battery?
I know our obd1 scanner doesn't communicate if you don't have a good connection.


Sent from my GT-P5113 using Tapatalk 4

Yes fans run and SES flashes when scanner is connected.

It has batteries, no additional power plug or cords. Handheld Innova 3120.

[JCzNova]

Before condemning the ecm check all your grounds.....especially with the abs light coming on as its independent of the ecm. If you want another ecm to try I'll ship mine to ya since car won't be running for a while. Just lmk.

Posted from my Rooted and ICS'd Rezound

Appreciate that Sean. I will check the grounds and all my connections for a start. Maybe next week if I have hit a wall, then I can at least rule it out. They are like $325 on rock auto ! ! !

[JCzNova]

Look like all of them?

Alldata pics I copied kept changing so I just removed them.

[79LT1Monte]

I would pull up the wiring diagram for the pcm and data connector and chech the grounds at each.

Sent from my GT-P5113 using Tapatalk 4

[JCzNova]

I would pull up the wiring diagram for the pcm and data connector and chech the grounds at each.

Sent from my GT-P5113 using Tapatalk 4

DLC pin A, gonna see where that attaches as I loosened a ground under the steering column when I added in my fan switch, to see if that's it.

Looking at the pcm now, just haven't navigated through alldata in a while.

[Fastbird]

I miss alldata......and identifix. All we've got at the new shop is freaking Mitchell.

Posted from my Rooted and ICS'd Rezound

[popo8]

Yes fans run and SES flashes when scanner is connected.

It has batteries, no additional power plug or cords. Handheld Innova 3120.

Did you check continuity in all the wires between the port and the ecu... to make sure they are all ok?

[JCzNova]

popo8 Fastbird 79LT1Monte

Update:

Larry, no I have not checked between the DLC and the ECM.

Visual check of the grounds look ok, but I was unboxing some others goodies instead of checking with the multi-meter.

Fuel Pressure stays steady between 38-42, gauge was a little slanted. Except if I punch the throttle in Park, then I get a stumble/hesitation. If I roll on the throttle from idle it will climb just fine.

I know the plug wires need replacing and I have the new ones, just needing the wrenching time with the weather turning on me fast.

[popo8]

unpacking stuff...giggidy!

MEMBER @ LTXtech.com

[JCzNova]

Daily News Feed:

Still can't get any program on two different laptops or my Innova scanner to connect to the car.

Cleaned up all the grounds in the engine bay, and check the DLC ground for good continuity.

With DLC jumped I am getting codes 12 & 15.

The 12 for No distributor reference pulse. ???
The 15 for low engine coolant temp, has the new sensor I just replaced and the wiring is good.

Didn't have to pump the pedal to get it to start today after cleaning the grounds, but still has the bog/hesitation if I punch a little from idle while parked.

Ready to hear ideas.

[Fastbird]

DTC 12 is just flashing to show that it's in diagnostic mode. Not an actual DTC more than it is a "hey, this is what you're doing" notifier.

[JCzNova]

DTC 12 is just flashing to show that it's in diagnostic mode. Not an actual DTC more than it is a "hey, this is what you're doing" notifier.

That is good news. Now I just need to figure out why it is reading low ECT. Thanks!

[JCzNova]

Can someone tell me what this black box is? Front driver side valve cover. Just hanging out in mid air from the harness.
http://img.tapatalk.com/d/13/10/27/dy2apyje.jpg

[popo8]

where are the wires running to?

MEMBER @ LTXtech.com

[JCzNova]

where are the wires running to?

MEMBER @ LTXtech.com

Ummm, yep. Lol. They go right into the fat wire loom right there and I don't see anything I don't recognize on the schematic.

[popo8]

i see the lable is pretty beat. but are there any molded numbers or anything we cam search¿

MEMBER @ LTXtech.com

[popo8]

label*

MEMBER @ LTXtech.com

[JCzNova]

I will have to check it after lunch. Fat kid's gotta eat!

[Fastbird]

Can someone tell me what this black box is? Front driver side valve cover. Just hanging out in mid air from the harness.
http://img.tapatalk.com/d/13/10/27/dy2apyje.jpg

That's the tach filter. Leave it be.

Posted from my Rooted and ICS'd Rezound

[JCzNova]

That's the tach filter. Leave it be.

Posted from my Rooted and ICS'd Rezound

I see it on the diagram now, white wire in, white wire out, and black ground.

[JCzNova]

I guess a better starting question would've been, has anyone ever even used tunerpro, free scan or Datamaster on a factory '93 OBD-1 speed density F-body?

Maybe I am chasing a problem that isn't there.

[Fastbird]

Freescan doesn't work, I could only ever get it to do snapshot. I used to use TTS Datamaster all the freaking time with mucho success. Never been in Tunerpro, so not sure if that one will or won't work. But I know for a FACT that Datamaster works.

[JCzNova]

Freescan doesn't work, I could only ever get it to do snapshot. I used to use TTS Datamaster all the freaking time with mucho success. Never been in Tunerpro, so not sure if that one will or won't work. But I know for a FACT that Datamaster works.

Then for the non-connection issue, I am out of ideas other than the ECM.

A few more things to work with the code 15 this week.

[JCzNova]

Hey OP, not to sound like a dick but, you have to get some kind of emulation hardware to run with TunerPro. Do you have any clue what your doing?!?!

[Fastbird]

:D Seriously? That's all it was?

[JCzNova]

:D Seriously? That's all it was?

That;s the ONLY answer I can find online anywhere. Tunerpro does connect, but the "dash" does not read anything. Not gonna bother with it now. The codes are gone, and I am doing the swap so I will get connected after that.

[JCzNova]

Hey OP, not to sound like a dick but, you have to get some kind of emulation hardware to run with TunerPro. Do you have any clue what your doing?!?!

Not to sound like a dick back to you, but it would be SOFTWARE... Jackass!

[SSlowBoat]

JCZNova now youre arguing with yourself....havin a fightclub moment lol

[JCzNova]

JCZNova now youre arguing with yourself....havin a fightclub moment lol

Just a shame I had to be the first guy with a '93 to tell me what was going on.

I can't believe no one user TunerPro?!?!

[SSlowBoat]

i dont have a 93 lol hence i didnt know

[Fastbird]

I only ever used Tunercats but haven't even touched that since about 2006.

[JCzNova]

It was just hard to comprehend that no one had messed with Pro and a 93 before.

Maybe some day this will help someone else out.

[GaryDoug]

I assume you are using the DA2.ADS, converted to adx, file with TunerPro version 5, right? Or directly with Version 4?

[JCzNova]

I assume you are using the DA2.ADS, converted to adx, file with TunerPro version 5, right? Or directly with Version 4?

It is version 5, and I am running an ADX, but as far as DA2.ADS I do not know what that is.

[GaryDoug]

What is the full name of the file you are using? Is it DA2.adx?

Can you measure the DC voltage at pin M of the DLC with a multimeter? If it is under about 3-4 volts, the DERM or EBCM may be shorting it. If so unplug them (after removing the fuses for each and waiting 20 minutes).

[JCzNova]

What is the full name of the file you are using? Is it DA2.adx?

Can you measure the DC voltage at pin M of the DLC with a multimeter? If it is under about 3-4 volts, the DERM or EBCM may be shorting it. If so unplug them (after removing the fuses for each and waiting 20 minutes).

$EE-16188051-V3.5

I have to run out to work today so I will check the power on the pin.

Tunerpro says connected, but shows no info.

Datamaster doesn't connect.

Scan9495 doesn't connect.

Not sure if all of that is because it is an EPROM ECM.

[GaryDoug]

$EE-16188051-V3.5 Wrong file. Go to the tunerpro.net web site and download the DA2.ADS file. In TunerproRT5, select Acquisition/Import Definition and then that file (da2.ads). It will prompt you to save it under the name DA2.adx. Do so. At that point it should work. TunerproRT version 5 needs an adx file, and the above process creates one using the ads file you downloaded.

I have to run out to work today so I will check the power on the pin.

Tunerpro says connected, but shows no info. Was using the wrong definition file ($EE=94/95 LT1)

Datamaster doesn't connect. You would need the version for the 93, not an EE version, if that is what you have.

Scan9495 doesn't connect. Never will, it is only for the 94/95 cars.

Not sure if all of that is because it is an EPROM ECM. Doesn't matter.

See this post for a possibly newer version for the 93: http://www.gearhead-efi.com/Fuel-Injection/showthread.php?341-16159278-ECM-Information-DA2-DA3

[JCzNova]

$EE-16188051-V3.5 Wrong file. Go to the tunerpro.net web site and download the DA2.ADS file. In TunerproRT5, select Acquisition/Import Definition and then that file (da2.ads). It will prompt you to save it under the name DA2.adx. Do so. At that point it should work. TunerproRT version 5 needs an adx file, and the above process creates one using the ads file you downloaded.

I have to run out to work today so I will check the power on the pin.

Tunerpro says connected, but shows no info. Was using the wrong definition file ($EE=94/95 LT1)

Datamaster doesn't connect. You would need the version for the 93, not an EE version, if that is what you have.

Scan9495 doesn't connect. Never will, it is only for the 94/95 cars.

Not sure if all of that is because it is an EPROM ECM. Doesn't matter.

Appreciate all the help. Do I need to use the DA3.xdf with the DA2.adx as well? I downloaded it in case, before I head to the car. I do have the EE version of Datamaster and can't find the older one online.

Will update this is a few hours. Fingers are crossed.

THANKS GARYDOUG !

[GaryDoug]

The xdf file is for the bin only and not for scanning. You can use it for making changes to the pcm.

You would need the "DA" version of Datamaster

[JCzNova]

GaryDoug is the member of the month to me!

Tunerpro connected, ECM is reading the correct coolant temp now. Couldn't let it get hot enough to see of the fans are operating correctly as my plug wires are touching the header.

It does have a glitch I experienced when I first used tunerpro on my 95. There was some kind of patch I had to download then which made it stop glitching.

The 93 adx does it too though, reading 73 coolant temp, then the gauges bounce way negative, then back reading, and repeat.