Learning to Scan / Tune 91 vette
Thread Starter
Instructor
Joined: Sep 2012
Posts: 141
Likes: 1
From: San Clemente CA
Learning to Scan / Tune 91 vette
91 L98, auto trans, ECM 12230
There is lots of post on the forum about reading data from the 91. I should have read more of them before I bought. The 91 seems like a problem child.
I have the ALDU1 and CABL1 from Moates and downloaded TunerPro RT. I am primarily interested in reading/monitoring data, not reprogramming chips, yet (maybe later).
First, can I mess up my car by plugging this stuff in and playing around?
Second, can someone recommend the correct files for this car? bin and data definition.
I have not been able to connect yet, but I'm reading and working on it.
Also, what is the point of the Xtreme ALDL. There are lots of posts about using 12 pin connector to USB.
all comments appreciated.
dell
There is lots of post on the forum about reading data from the 91. I should have read more of them before I bought. The 91 seems like a problem child.
I have the ALDU1 and CABL1 from Moates and downloaded TunerPro RT. I am primarily interested in reading/monitoring data, not reprogramming chips, yet (maybe later).
First, can I mess up my car by plugging this stuff in and playing around?
Second, can someone recommend the correct files for this car? bin and data definition.
I have not been able to connect yet, but I'm reading and working on it.
Also, what is the point of the Xtreme ALDL. There are lots of posts about using 12 pin connector to USB.
all comments appreciated.
dell
Thread Starter
Instructor
Joined: Sep 2012
Posts: 141
Likes: 1
From: San Clemente CA
I have read a lot of stuff today to figure this out.
Everything I see show the 91 L98 as ECM 1227730. I recently had a chevy dealer work on my car. They replaced the ECM with a 12230.
Is this the wrong ECM? It appears to be for a 94-95 Dodge Ram 1500-2500?? This dealer messed up several things on my car.
Maybe why I am having problems connecting with TunerPro?
Everything I see show the 91 L98 as ECM 1227730. I recently had a chevy dealer work on my car. They replaced the ECM with a 12230.
Is this the wrong ECM? It appears to be for a 94-95 Dodge Ram 1500-2500?? This dealer messed up several things on my car.
Maybe why I am having problems connecting with TunerPro?
Last edited by wdsj; Sep 29, 2012 at 06:12 PM.
Drifting
Joined: Nov 2009
Posts: 1,341
Likes: 2
From: Perth Western Australia
St. Jude Donor '10
I would recommend asking Craig Moates whether the device you bought supports the new ecm.
He was very helpful when I was struggling to get tunerpro rt working with the moates apu1 on my 87. For datalogging you will need a $8D .ads file for a 91 (with a stock ecm) when running tunerpro rt.
Download here if you haven't already: http://www.tunerpro.net/downloadBinDefs.htm
He was very helpful when I was struggling to get tunerpro rt working with the moates apu1 on my 87. For datalogging you will need a $8D .ads file for a 91 (with a stock ecm) when running tunerpro rt.
Download here if you haven't already: http://www.tunerpro.net/downloadBinDefs.htm
Last edited by Lemme; Sep 30, 2012 at 09:46 AM.
Drifting
Joined: Nov 2009
Posts: 1,341
Likes: 2
From: Perth Western Australia
St. Jude Donor '10
If the ecm has been changed then that would explain why that particular .ads file won't work. Ask Moates about the dodge ecm or ask the dealer how to datalog the dodge ecm they put in.
Thread Starter
Instructor
Joined: Sep 2012
Posts: 141
Likes: 1
From: San Clemente CA
I got turnerpro to connect, but the connection is on, then error, on, error over and over. The data is erratic. I have seen a similar post somewhere on the forum, flashing blue (connect), red (error). But can't seem to relocate. added: found the post, it does not help.
added: when DA: Connected is displayed, I am getting data. press throttle and throttle position changes. But switches from DA: Connected to DA:Error about every second.
added: when DA: Connected is displayed, I am getting data. press throttle and throttle position changes. But switches from DA: Connected to DA:Error about every second.
Last edited by wdsj; Sep 30, 2012 at 01:26 PM. Reason: add info
Burning Brakes
Joined: Aug 2006
Posts: 878
Likes: 2
From: BC
Use Tunerpro V4 rather than V5 - I've had this problem before - something about the CCM on the Vette's.
Give it a try - it has to be worth it
I also find it very hard to believe that you would have a DODGE ECM on your car if its running. Most likely a bad cross reference with the ECM part number.
Give it a try - it has to be worth it
I also find it very hard to believe that you would have a DODGE ECM on your car if its running. Most likely a bad cross reference with the ECM part number.
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Thread Starter
Instructor
Joined: Sep 2012
Posts: 141
Likes: 1
From: San Clemente CA
Use Tunerpro V4 rather than V5 - I've had this problem before - something about the CCM on the Vette's.
Give it a try - it has to be worth it
I also find it very hard to believe that you would have a DODGE ECM on your car if its running. Most likely a bad cross reference with the ECM part number.
Give it a try - it has to be worth it
I also find it very hard to believe that you would have a DODGE ECM on your car if its running. Most likely a bad cross reference with the ECM part number.
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Original ECM for 90/91 Vette TPI was # 1227727, similar to the F-Body # 1227730 but housed in a weatherproof case
GM replacement #'s are 16197128 or 16198260
All are treated as the same for tuning purposes, same TP files used
GM replacement #'s are 16197128 or 16198260
All are treated as the same for tuning purposes, same TP files used