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 Post subject: Vacuum readings
PostPosted: Sat Oct 07, 2017 10:31 am 
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Joined: Tue Jul 20, 2004 3:05 pm
Posts: 1919
Location: Brisbane
I am running a vacuum/ boost gauge in readiness for reinstalling the supercharger back soon.

I am getting erratic vacuum each time I drive. Sometimes it reads -10 hg vacuum and whenever, i stop the car and eventually restart the vacuum readings can got to zero at idle or other times it could be somewhere in between.

It changes each time I drive.

I have checked for vacuum leaks and sprayed maf cleaner around injectors and joints. I just dont understand why it can be pulling normal vacuum and after restarting its totally different

Any ideas?

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skc
Hymee Supercharged (200kw at the wheels)
Lakeside 1:02.02
Wakefield 1:12.04(NA) 1:11.36(FI)


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 Post subject: Re: Vacuum readings
PostPosted: Sun Oct 08, 2017 2:08 pm 
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Posts: 2394
Location: SW Sydney, NSW
Faulty pressure sensor ?


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 Post subject: Re: Vacuum readings
PostPosted: Tue Oct 10, 2017 3:20 pm 
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Joined: Tue Jul 20, 2004 3:05 pm
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Location: Brisbane
Probably, I will have to purchase a new gauge

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skc
Hymee Supercharged (200kw at the wheels)
Lakeside 1:02.02
Wakefield 1:12.04(NA) 1:11.36(FI)


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 Post subject: Re: Vacuum readings
PostPosted: Sun Oct 22, 2017 1:18 pm 
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Joined: Tue Jul 20, 2004 3:05 pm
Posts: 1919
Location: Brisbane
Changed throttle body and MAF. The car now revs smoothly to the buzzer without any hiccups. I will monitoring over several drive cycles to confirm that the issue has been resolved.

Also ordered new sensors for ssv and vdi as a precaution.

If all goes well then I can start making plans to get the supercharger installed.

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skc
Hymee Supercharged (200kw at the wheels)
Lakeside 1:02.02
Wakefield 1:12.04(NA) 1:11.36(FI)


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