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Dave Blundell sez "Vernon (deluded) sent me much of this info."

As a rule of thumb, 90 PR4s have external PA sensors, and 91 ECUs have internal PA sensors. You can tell (to some degree) by looking at the "code" of the ECU:

Label Description
A00 90 5 Speed (-33 program)
A01 90 5 Speed (?? program)
A02 90 5 Speed (-54 program)
A51 90 Automatic (?? program)
A52 90 Automatic (-54 program)
A10 91 5 Speed (-92 program)
A12 91 5 speed (-92 program)
A60 91 auto (-92 program)
A62 91 auto (-92 program)

Ok, with that out of the way... It is easy to select whether to use a internal or external PA sensor. See the following table:

Part External PA Internal PA
PA Sensor missing installed
C103 missing present(103Z)
R92 jumper 10Kohm
C106 missing present(103Z)

*edit* It seems that the Internal PA ECU is missing C106, and the External PA ECU has C106 present.

Parents: ECUHardware Mods Revision: r1.2 - 22 Sep 2005 - 21:14 GMT - warrick { Edit | Attach | History | More }
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