if you dont block off the ports from the fiav after rerouting your coolant lines. the bead inside the fiav wont heat up and plug the hole so you will always be allowing more air past the throttle blade than you want.
eventually heat will make its way to the intake manifold and then the throttle body to fix this but it will take a long time/
Quote:
Originally Posted by asshanson
What is the difference?
Blockoff plate = block FIAV and IAV/ISC?
Bypass = block FIAV and retain IAV/ISC?
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yea the block off plate replaces the lower half of the throttle body.
the bypass plate goes in between the 2 halves and still allows for ISC operation.
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