Scanmaster 2.1 wiring question

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Selfel

New Member
Joined
Oct 16, 2025
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4
I recently purchased an 87 Turbo T and am currently going though it to see what I have and what all has been done. It has a Scanmaster installed and in verifying the wiring it has the white wire connected to the ALDL connector but also has a wire spliced to it going to the ECM. Ok to just delete the wire to the ECM?
 
to the op
if you have a scanmaster 2.1 and it shows 2.1 on display when powered up ...the white goes to the aldl ( E)or the ecm at A8
no need to have the white wire connected to aldl plug and ecm ...its the same
if you have a powerlogger (and a scanmaster 2.2 chip installed in the scanmaster ) you should make use of the faster data stream from it and connect white wire to the to the aux block scm terminal

ecmwiring1.jpg
 
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