I attempted to program my Avalanche today with disastrous results.
I followed the instructions on the sheet.
First I pressed "A" and removed the speed limiter. Then I made Tire Size corrections for my 35" tires. After that the screen returned to the main menu. I then pressed yes and proceeded to let the tuner enter the programmining cycle.
The first screen stated that it was storing my vehicles stock settings. That took about 3 minutes. After that, the screen said that it was beginning to program the new settings. Only one star came up on the current process screen when the unit beeped 3 times and said that there is no response from PCM and to check that the ignition was on and to check the cable. Nothing had moved jarred or switch on or off prior to this. I frantically tried to make sure that the plug was seated in the Data Link Connector and the other end securely attached to the tuner. I tried pressing different buttons on the tuner to see if that would change the screen which it did not.
At this time I had no choice but to unplug the unit and re plug it back in. I went through the programming mode again and this time it just said that there was no response from the PCM.
I turned the ignition off and removed the cable. Now, the vehicle will not start.. The starter cranks but the truck will not run.
I tried the procedure 3 more times and even disconnected the battery for 20 minutes in hopes that the PCM would reset. Nothing changed.. I had to leave my truck parked on the street and get a ride home.
I am very upset.. I do not know what to do....
Being the weekend, There is no tech support available.
I have been searching the internet for any info regarding my problem.
I found an exact case to mine from a guy on LS1 Tech.com
Here is the link.
Superchips killed my truck
I followed the instructions on the sheet.
First I pressed "A" and removed the speed limiter. Then I made Tire Size corrections for my 35" tires. After that the screen returned to the main menu. I then pressed yes and proceeded to let the tuner enter the programmining cycle.
The first screen stated that it was storing my vehicles stock settings. That took about 3 minutes. After that, the screen said that it was beginning to program the new settings. Only one star came up on the current process screen when the unit beeped 3 times and said that there is no response from PCM and to check that the ignition was on and to check the cable. Nothing had moved jarred or switch on or off prior to this. I frantically tried to make sure that the plug was seated in the Data Link Connector and the other end securely attached to the tuner. I tried pressing different buttons on the tuner to see if that would change the screen which it did not.
At this time I had no choice but to unplug the unit and re plug it back in. I went through the programming mode again and this time it just said that there was no response from the PCM.
I turned the ignition off and removed the cable. Now, the vehicle will not start.. The starter cranks but the truck will not run.
I tried the procedure 3 more times and even disconnected the battery for 20 minutes in hopes that the PCM would reset. Nothing changed.. I had to leave my truck parked on the street and get a ride home.
I am very upset.. I do not know what to do....
Being the weekend, There is no tech support available.
I have been searching the internet for any info regarding my problem.
I found an exact case to mine from a guy on LS1 Tech.com
Here is the link.
Superchips killed my truck