Edelbrock Pro-Tuner, User Manual

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Figure 22
1) Locate the “A” connector on the PCM harness plugs. It is the largest of the 3
connectors and contains 32 pins. The pins are numbered on the bottom side. Remove
from PCM.
2) The cover of the connector must now be removed. Cut the tie-strap holding the
harness bundle to the cover.
3) Four lock tabs retain the cover to the connector. Press 2 tabs on the same side;
unlocking one side at a time – and remove the cover.
4) Note the backside of the connector and the numbers in each corner to help identify pin
numbers. Note also the blue plugs sealing the connector where no wires are present.
With small pliers, grab the plug firmly and pull the plug from the number A7 position. If
2 sensors are installed, also pull the plug from the number A10 position. Save the plugs
for re-installation. See Figure 23.