Help Needed on my Vacuum Gauge

[Keith10w]

Just a few days ago my gauge start to react abnormally, previously when i floored the accelerator the needle will go to zero immediately, but now if i floored the accelerator it will just go to 15mg an wouldn't go further. what could be the problem ?? Pls Help !!! I am using pro sport stepper gauge

[Elfenstar]

Is it a mechanical or electrical gauge. If mechanical check that the hose isnt kinked. If electrical check the electrical connections (preferably test to see if the gauge is working properly).

 

One ques though, does the car feel any different?

[Keith10w]

Hi It is a mechanical gauge, properly have to send to workshop and check . car feels no diff.

[Elfenstar]

before you do that check the vacuum hose running from the engine bay to the gauge. Sometimes it kinks in a way that it still allows air to pass through till a certain pressure then its sucked shut preventing the gauge from reading any lower. Its actually quite common with cheap hoses.

[Keith10w]

Thanks bro I will do a check

[Mcff_1980]

i encountered before, which is the vacuum hose bended.

[Keith10w]

suspecting that also....but dumb me....i dunno where is the hose...