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? |
Originally Posted by skc
(Post 4838978)
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? |
Thanks, I will check the connections and if necessary purchase new sender if possible.
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