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I did my yogurt cup test from the air filter side of AFM

Posted August 5, 201212 yr

I have a very slight leak, when I blow air into the brake booster bung, around the AFM boot, from the throttle body to AFM, it curls up on the ends from those dang Datsun 2 wire clamps. Since it is before the throttle plate should it affect the manifold vacuum? I could get wide hose clamps and stop it probably but if it doesn't matter what does it matter?

It's the connection from AFM to throttle body accordion hose that won't seal. It's been a long morning, sorry.

Edited August 5, 201212 yr by siteunseen

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August 5, 201212 yr

comment_397716

That boot leaking would be counted as a vacuum leak, as the air entering the throttle body would not be metered by the

AFM. If it were the Air cleaner to AFM boot I would not worry so much.

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August 6, 201212 yr

comment_397828

What Grant said! I don't understand why the boot won't seal, though. Are you sure there's not a rip or crack in the boot? I've never had any problem with the wire clamps. In fact I greatly prefer them to the band clamps.