[V8] The last ride By RGW

QSHIPQ at aol.com QSHIPQ at aol.com
Wed Jul 2 13:40:56 PDT 2008

Noticed your comment regarding swapping the 3.6 ecu/harness into 4.2  for 
more HP.  More hp than the ABT 4.2 chip?  The other question I  would have is 
that the 4.2 autobox motronic uses the WOT switch  potentiometer for calculation 
of load in shifting.  I always  considered that a good thing, and would make 
me believe that if using the 3.6  auto on a 4.2 auto, you'd need to also swap 
the transmission motronic over to  the 3.6.  Yes?  After my recent re-education 
on the 4.2 motronic, I'd  be more inclined to put the 3.6 chip code into the 
4.2 motronic, as there are  some good redundancies in the 4.2 ecu/harness the 
3.6 doesn't have.
Scott J
92 v8 4.2 auto w/ Abt chip
91 v8 3.6 auto stock (ex-Abt chipped ecu/trans ecu mounted to ecu  bracket - 
for sale)
In a message dated 7/2/2008 2:38:18 P.M. Central Daylight Time,  
ron_01056 at yahoo.com writes:


All so FYI, if you swap out the 4.2 ECU & wiring  harness to a 3.6's you'll 
get more HP.
The 3.6 ECU is mapped more  aggressively than the 4.2's.
All so found under the driver side knee  bolster & routed under the 
firewall/rain deverter. Four coastal  connectors, & only 3 for the standard  cars.


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