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Sep 1, 2015 | 04:02 PM

#11 (permalink)

onehundred80

Senior Member

Joined: Apr 2006

Posts: 25,432

Likes: 647

From: Ontario

Re: 74 mm TB help !!!!!

Quote:

Originally Posted by maxcichon

I've done this 3 times and I always replace the TB with the battery disconnected.

The ECU learns the running parameters of these. If you change it out and the ECU thinks you have an older, smaller TB in, it may have issues....like surging idle etc. until it learns the new unit.

If it learns the new unit after a reset (battery disconnect), it might go better....

I changed only one and did not disconnect the battery, I had no problem at all.
If there is no power to the TB with the ignition OFF how can it learn anything different with the battery disconnected?

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