07-23-2009, 09:43 AM
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| Member
Join Date: Nov 2008
Posts: 138
| Advanced $OD Tailshaft Output Speed?
I need some help with my 87 GMC; TBI 454 / Turbo 400. I am going to convert to 16197427 ECM. I would like to change the PROM settings to allow using the original 87 GMC VSS, which I think is 2000 PPM?
In another post on this board about converting to the $OD I found the following information:
" The other issue is the VSS. All i did here was change the 'pulses per revolution of
tailshaft' parameter in the EPROM from 40 to 2 and it works perfectly."
I've posted a screen shot of the Advanced $OD settings I think I need to make changes to from 40 counts tailshaft output speed to 2000 pulses per mile. Are these the settings I need to use?
Thanks, dave w | | | |
 
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