For some reason my rpm gauge goes crazzy while im driveing.it happened a few times the gauge goes below 1 and catches and then below 1 again and i notice twice it happens on da highway could it be dat i have air in my fuel injection lines.....and if i do how can i fix this problem

When the RPM gauge goes down and then up, does the engine noice change and do you loose or gain acceleration?

Also, please add your year and trim of your vehicle to your signature line. That way when you start asking questions in other areas of the forum, we all have a better idea on how to assist you. Click on "Quick Links" above, go down to "User Control Panel" and then click on "Edit your Signature" It'* pretty straight forward from there.

92 bonneville se....sorry about dat im kinda new at this.......well it shifts the way its suppose to with no problem if i didnt pay atention to my dash i would have never notice any problems.....i just put in all new sensors where the intake conects to the engine could it be dat

[QUOTE=Purplehazeir;1369100]When the RPM gauge goes down and then up, does the engine noice change and do you loose or gain acceleration?

Also, please add your year and trim of your vehicle to your signature line. That way when you start asking questions in other areas of the forum, we all have a better idea on how to assist you. Click on "Quick Links" above, go down to "User Control Panel" and then click on "Edit your Signature" It'* pretty straight forward from there.[/QU

i have a 93 bonneviile and when im driving it sometimes seems like the rpm hand is high but while hiting the gas its fine but when i stop the rpm hand drop under 1 and it actually cuts off sometimes but starts right back up but it does that only and drive when its and park it runs ok

If the gauge is jumping around I would check grounds. Sounds like bad a connection.