different cal is a different cal, im sure programming in the pcm is different in there somewhere.
how did you fool it to put a 05 cal on a 04?
how did you fool it to put a 05 cal on a 04?
And a different ECU is a different ECU. I have been letting an individual hook up to my car's ECU to get info for a product of his and have found out that the 04 ION Red Line has a Saturn specific Motorola unit in it that is different from the ECU in the '05 ION Red Line & Cobalts SS.cavingman said:different cal is a different cal, im sure programming in the pcm is different in there somewhere.
how did you fool it to put a 05 cal on a 04?
Blu_Redline said:And a different ECU is a different ECU. I have been letting an individual hook up to my car's ECU to get info for a product of his and have found out that the 04 ION Red Line has a Saturn specific Motorola unit in it that is different from the ECU in the '05 ION Red Line & Cobalts SS.
I have also had conversations with a tuner garage that is waiting on the software to be finished to re-program the Cobalt SS & 05 Red Line and was told that it was not for the '04 Red Line. It seems that this software company provides software for the C5 corvettes that help out a lot with their engines and the same should be true for the LSJ cars. I then asked a GM dealership service manager about buying an '05 ECU and throwing it into the '04 Red Line and he told me that it just isn't that simple, that our connectors could be different and the sensor parameters could be wired differently for the Motorola unit that would not be compatable with the different unit for the '05s. Sucks![]()
Blu_Redline said:And a different ECU is a different ECU. I have been letting an individual hook up to my car's ECU to get info for a product of his and have found out that the 04 ION Red Line has a Saturn specific Motorola unit in it that is different from the ECU in the '05 ION Red Line & Cobalts SS.
I have also had conversations with a tuner garage that is waiting on the software to be finished to re-program the Cobalt SS & 05 Red Line and was told that it was not for the '04 Red Line. It seems that this software company provides software for the C5 corvettes that help out a lot with their engines and the same should be true for the LSJ cars. I then asked a GM dealership service manager about buying an '05 ECU and throwing it into the '04 Red Line and he told me that it just isn't that simple, that our connectors could be different and the sensor parameters could be wired differently for the Motorola unit that would not be compatable with the different unit for the '05s. Sucks![]()
Don’t sweat it Dazed, this is mostly incorrect information IHMOdazednconfused75 said:That seems to be very bad news.
SWCSWCRedline said:We finally got an '05 on the lot at the dealership. Hooked that up to the Service Stall... when it came time for the download to take place... I moved the tech 2 to my car. I ended up switching it back to the 04 calibration.. it was interesting though... Speedo maxed out at 20.. odometer registered only 5 miles for every 15 driven (roughly).... Car drove amazing and the upshift lag I had disappeared... what i didnt like was my PCM was carrying around the 05's VIN number in memory... wouldn't work too well when it came time for emmissions testing. I guess maybe the '05 uses a different speedo set up.. I'd have to research it more.
SWCRedline said:Differences between the computers surprises me as the part number is identical for both years... wondering how you would differentiate model year if you had to order a new one. As far as the update being available for 2004, yes there is the same calibration everyone knows about by now, but I found the '05 update to improve it even further. Unfortunately there were issues and even if their weren't, I don't know enough about what changes it made to keep it installed for any extended period. Basically tried it to see if it would work.
Hey if i didn't have a conscience, or needed emissions testing, it'd bea nice way to keep the miles down![]()
XtremeSC2... I believe I looked at your car the day after I discovered my intercooler hose about to be sliced open.. get yours taken care of yet?