There are several settings the need to be adjusted to use a 7004R file with a THM400. TCC lockup tables are only part of the equation. Have you done a comparison between a 400 calibration and the one you're currently working with?
There are several settings the need to be adjusted to use a 7004R file with a THM400. TCC lockup tables are only part of the equation. Have you done a comparison between a 400 calibration and the one you're currently working with?
I did a compare between AMUC (TH400) vs. AMUR (TH700R4), which showed 869 bytes difference. There are several undefined bytes, which might be for the TH400?
dave w
Im using the ANTY bin from here, my ecu had that as the stock chip and would run/drive. I'm just looking to see if or how kickdown can be adjusted.
It is a TH400 bin.
Last edited by blue68deville; 05-12-2014 at 06:12 PM.
68 Cadillac, 472 & TH400 w/7.4L TBI and EBL **sold**
93 K1500 short step, 5.7 & NV4500 and EBL
68 C10 LQ4/TKO swapped
It can be adjusted. TCC operation is roughly inverted from kickdown. TCC is "on" at low throttle and load while THM400 is "on" at high throttle and load. Factory calibration values set downshift at or near WOT.
Simple test is to connect a test light to solenoid coil + and apply WOT while driving. Confirm proper electrical operation and TPS indicating 100% throttle before working to change calibration.
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