02Z28

iTrader: (11)

OK I just got my th-400 installed into the car and I was wondering what I need to tune. The cars idle seems to be to low and it likes to die when I am in drive or stopping at a stop sign. Also the speedo is way off it says I'm going 150 when I am doing about 45. Also I deleted the ABS is there a way I can tune it to get the light to go off?

bmfcamaro

iTrader: (1)

cant delete the abs light. a tech 2 might be able to, but not our tuner programs. they dont read and write the bcm.

bmfcamaro

iTrader: (1)

how hard was that conversion? how much if you dont mind me asking. i might look into this in the future.

Ragtop 99

iTrader: (7)

Your torque converter is heavier than the M6 flywheel so you probably need to change your idle airflow table. Log your LTIT and STIT and make the needed changes.

The speedo is off becuase the speed sensor values are different on different transmissions. You can either flash the correct value into the VSS table or you can compute a rear gear ratio that cures the error. When I swapped from a 4l60 to t56, EDIT wouldn't change the VSS counts so I told it that I have a 1.57 rear gear (instead of my 3.73s) and it works fine. I don't know if the TH400 uses the same VSS counts as a 4L60. If it does, you can use my factor to get you close. (157/373 * current ratio = new ratio)

I have HPT now, but have not tried to update the VSS tables.

02Z28

iTrader: (11)

I thought it was really easy. It's easier to put the Th-400 then it was the T-56. I probally spent a little over $2500.