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Originally Posted by XfireZ51
Anything further on "reprogramming the chip" if secondaries aren't used? What happens to use of PT Throttle Open VE and SA tables if the parameters for using secondaries is set high in order to avoid setting a code?
Any comments on simply removing the butterflies and leaving everything else intact?
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That's what we did. Kept the solenoid, pump, and diff map but took out the butterflys and shafts. Then in the prom, I duplicated the pt open sa and ve tables to the closed pt sa and ve tables. Works like a charm. The ecm thinks it's switching the secondaries, and using the different tables, but in reality is just using the pt open tables at all times. BTW, just setting the pt open point to be some really low value (as our chip was delivered) is not a good idea as since the ecm thinks it's in pt open mode it only uses 3 of the 19 ft cells. This can have a real impact on driveabilty (especially if your ve tables aren't perfect). Doing it the way I suggest allows the ecm to use all ft cells under normal driving as it thinks the pt's are closed.
Scott