my idle vacuum is 20 at 900-1000 RPM...

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Feb 18, 2002 | 06:35 PM

legendr35

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Senior Member

Joined: Nov 2001

Posts: 588

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From: so. cal.

my idle vacuum is 20 at 900-1000 RPM...

is that normal?

thanks

Feb 18, 2002 | 06:38 PM

Johnny

Joined: Feb 2001

Posts: 1,291

Likes: 1

From: Pleasanton,California

why is your idle 900-1000...have a/c on or something...idle should be like 750ish...then you could bet for sure your vac number will do down

Feb 18, 2002 | 08:42 PM

RX7FAN

Full Member

Joined: Mar 2001

Posts: 170

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From: Turtle Creek, Pa, USA (Sub of Pittsburgh)

Tap on your gauge and see if it drops 1 or 2

Feb 18, 2002 | 09:53 PM

Nathan Kwok

Rotary Enthusiast

Joined: Feb 2001

Posts: 1,025

Likes: 4

From: Huntington Beach, CA, USA

Thats normal, I see the same thing. Sometimes my idle holds up there for awhile before going back down to 750, I already had it adjusted and I asked Mazdatrix why and John said the computer holds it up there for a little while when coming to a stop to keep the water pump moving. At 750 I see more like 16-17.