Quote:
Originally Posted by snidd111
Don't mean to revive a dead thread but the information here is the best I could find regarding the boost gauge installs on the FRS and I'm having some issues with mine. I tapped into the brake boost line between the engine and the check valve for my Defi boost gauge. But when I'm driving I always see -30psi unless I press the brakes. If I press the brakes repeatedly the boost rises, then drops back down to -30psi. Could someone give me a pointer to what I did wrong?
I circled the check valve on the line for clarity.
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It looks like the tap from the brake booster line is correct as it's below the check valve. Where's that tube running to?