What vacuum should I see at idle???
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Joined: Jun 2003
Posts: 528
From: Herndon, VA
Re: What vacuum should I see at idle???
Originally Posted by speed_demon24
Is your map reading 16.4 or are you subtracting your MAP reading from the BAR?
bar is 30.9
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Joined: Nov 2002
Posts: 4,784
From: Jacksonville
Re: What vacuum should I see at idle???
My gauge reads 11-12, my PCM sees 14-15. Course my cam is a little bigger than yours. 
Hey Rob, did you get the rocker studs retightened? Hope you gave the machine shop a good thrashing over that.
Hey Rob, did you get the rocker studs retightened? Hope you gave the machine shop a good thrashing over that.
Thread Starter
Registered User
Joined: Jun 2003
Posts: 528
From: Herndon, VA
Re: What vacuum should I see at idle???
Originally Posted by 97WS6SCharged
My gauge reads 11-12, my PCM sees 14-15. Course my cam is a little bigger than yours.
Hey Rob, did you get the rocker studs retightened? Hope you gave the machine shop a good thrashing over that.
Hey Rob, did you get the rocker studs retightened? Hope you gave the machine shop a good thrashing over that.
Yeah got them readjusted with new pushrods and all. Gave the machine shop a good piece of my mind also. So thats the reason I am asking about the readings on the scanmaster, wanted to know if sounds about right since I had to adjust the valves again. Chris thanks for all your help at G9 and all dont know where I would of been without the assistance.
Rob
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Joined: Nov 1998
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From: Hell was full so they sent me to NJ
Re: What vacuum should I see at idle???
Originally Posted by Spinner
Use a VACUUM GAUGE. Dont judge vacuum by pcm readings.
Explain the error.
And... for all the people who used "#".... vacuum is either inches of mercury ("Hg), kilopascals (kPa) or psi... never "#".
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