Vacuum gauge - Toyota Nation Forum : Toyota Car and Truck Forums

wilfredo · 04-17-2005, 03:47 PM

Hey, what's doing. Just a ?. Where can I connect a vacuum line for my vacuum gauge. I connected to the throttle valve and the reading was fluctuating ( Going crazy). Is there any where else I can connect to. Help appreciated.

DMDrew812 · 04-17-2005, 04:54 PM

for.. an mr2 or supra? like for an aftermarket turbo gauge? me and my brother (92 MR2 turbo) happened on that problem too.

wilfredo · 04-18-2005, 07:55 AM

It's an aftermarket guage and the vehicle is an echo 2002.

Ostornadoe · 04-20-2005, 10:38 PM

You realize that the needle can fluctuate on a vacuum gauge if it's hooked up correctly?

Here's what it means:
-Fluctuating Needle as RPM Increases = Ignition miss, blown head gasket, leaking valve or weak or broken valve spring
-Intermittent Fluctuation at Idle Ignition = miss, sticking valves, lifter bleeding off (hydraulic), or just a BIG camshaft

You can connect to any vacuum hose connected to your engine. Just t-splice it in. Good luck.