Joined
·
534 Posts
I installed a APEXi EL boost gauge this weekend. It seamed to be working. I would read a negative pressure at idle. And would get about 0.75 kg/cm2 (10.5 psi) at WOT. So I thought everything was great. Then to day I was sitting in the car waiting for the carwash, listening to music with the motor off. The line I taped for power to the gauges was active. Suddenly the boost needle started to move. It went up to about 1 kg/cm2 (14 psi). I thought it would fix it's self after I started the motor, but no. Driving back from the carwash the guage was reading 1.5-2 kg/cm2. And the reading at idle shows a positive manifold pressure. The guage boddoms back to it's highest (lowest?) negative reading when I turn off the power. but once the power is back the bad readings are still there.
here are some pictures:
motor off
motor idle
motor reving out of gear
here are some pictures:
motor off
motor idle
motor reving out of gear