L98 ESC mod
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Joined: Sep 2001
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From: Stuck in the 80's
L98 ESC mod
There is a tech article to upgrade the ESC module, which I did a few weeks ago. Here is some data from a scan of the OE vs. the Upgraded module.
OE ESC
CTS TPS RPM VSS O2 O2XCNTS BLM BLMCELL INT IAC LV8 MAP MAT SPARKADVTDC SPARKADVREF ESCIN ESCOUT BPW
189.5 3.92 3800 28 870.24 0 128 15 128 145 228 12.97 95 31.99 11.25 11 73 8.8
Upgraded ESC
CTS TPS RPM VSS O2 O2XCNTS BLM BLMCELL INT IAC LV8 MAP MAT SPARKADVTDC SPARKADVREF ESCIN ESCOUT BPW
188.15 3.96 3800 28 861.36 0 128 15 128 144 229 14.5 104 31.64 13.36 10 58 8.68
Notice the lower ESCOUT which results in less timing retard, roughly 2-3 degree's. I purposely had the timing bumped up to get these elevated numbers to better show the difference.
May want to considre this mod, you can get the part trhough gmpartsdirect.com for $56.80 shipped to your door.
OE ESC
CTS TPS RPM VSS O2 O2XCNTS BLM BLMCELL INT IAC LV8 MAP MAT SPARKADVTDC SPARKADVREF ESCIN ESCOUT BPW
189.5 3.92 3800 28 870.24 0 128 15 128 145 228 12.97 95 31.99 11.25 11 73 8.8
Upgraded ESC
CTS TPS RPM VSS O2 O2XCNTS BLM BLMCELL INT IAC LV8 MAP MAT SPARKADVTDC SPARKADVREF ESCIN ESCOUT BPW
188.15 3.96 3800 28 861.36 0 128 15 128 144 229 14.5 104 31.64 13.36 10 58 8.68
Notice the lower ESCOUT which results in less timing retard, roughly 2-3 degree's. I purposely had the timing bumped up to get these elevated numbers to better show the difference.
May want to considre this mod, you can get the part trhough gmpartsdirect.com for $56.80 shipped to your door.
