Erratic Vacuum readings
10-06-2017, 06:48 PM
#1
rev it up
Thread Starter
Erratic Vacuum readings
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.
I know that most people don't run vacuum gauges in a stock car so I am not sure if its normal.
Any ideas?
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.
I know that most people don't run vacuum gauges in a stock car so I am not sure if its normal.
Any ideas?
10-06-2017, 10:25 PM
#2
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.
I know that most people don't run vacuum gauges in a stock car so I am not sure if its normal.
Any ideas?
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.
I know that most people don't run vacuum gauges in a stock car so I am not sure if its normal.
Any ideas?
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skc (10-06-2017)