2 Attachment(s)
Tuning '94 chev Suburban Big Block
In the process of tuning a 1994 Chevrolet Suburban with a Big Block. Found a 0E mask binary that works good with the 16197427 ECU. The binary file found is a BJKW 0E. The 454 big block was bored and stoked to 489 cu in. The cylinder heads were replaced with Edelbrock Oval Port heads. Also an Edelbrock TBI to batch MPFI conversion intake manifold was installed. The throttle body now has the upper fuel portion taken off and lower portion used as an air valve with TPS and IAC.
Today adjusted the cylinder displacement and fuel flow constant upward by the percentage of change in displacement. Burned a BJKW+ file to chip and installed in ECU. Set the Autoprom APU1 in the vehicle and recorded the BLMs for on and off idle. The idle BLMs are right on the money at 128. The off-idle BLMs need some adjustment and not all that bad.
Need help in identifying which parameter to use in the tables of the BJKW 0E mask binary. I have attached a jpeg file of what I believe are the applicable parameters. Would like confirmation from you folks that I am headed in the proper table items to modify the on and off-idle VE tables. Trying to locate and identify the two VE table to use to apply BLM spreadsheet corrections to. Also attached is the BJKW 0E binary file for inspection. Please advise. Thanks.