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Old 09-04-2025, 11:53 PM
Frank Reiner Frank Reiner is offline
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Join Date: Feb 2011
Location: Modesto CA
Posts: 4,383
Quote:
Originally Posted by Ronnie79 View Post
I also forgot to mention that if I push down the fuel distributor sensor plate a little by hand while giving full throttle at same time it seems more powerful than ever (when its warm).

Both fuel pumps at least sounds like they are working, also when its hot.

O2 sensor I haven't checked. Is it affecting the mixture also on absolute full throttle?

Between the fuel distributor and the air flow sensor there is a small tower with a 3mm socket screw inside. That is the main mixture adjustment.
A hex wrench can be inserted, and the screw pushed down against a spring. When the screw is slowly turned it can be felt to go down a little farther, and to engage a second screw. The second screw is the actual adjustment. Try 1/4 of a turn Clockwise (CW). There should be a noticeable change if that adjustment is the culprit. If there is an improvement proceed CW in increments of 1/8 turn.
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