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NotchJohnson · 02-03-2003, 02:40 PM

If your car is a 91 it is mass air, and you want to keep the bap sensor open. On speed density cars it is a map (manifold absolute pressure?) sensor, but on mass air cars it is a bap(barometric air pressure?) sensor. Find out what was unplugged on your intake first. You should have the fpr hooked up to it, the long black vacuum line from the small 4-line connector (located on the pass side near the firewall) connected to it, there shoul be one large line going from the accesory vacuum tree to the intake, and your pcv valve. All these shoulod be plugged into the back of the intake. What one was disconnected?

02-03-2003, 02:40 PM	#8
NotchJohnson Registered Member Join Date: Oct 2001 Location: Florida Keys Posts: 593	If your car is a 91 it is mass air, and you want to keep the bap sensor open. On speed density cars it is a map (manifold absolute pressure?) sensor, but on mass air cars it is a bap(barometric air pressure?) sensor. Find out what was unplugged on your intake first. You should have the fpr hooked up to it, the long black vacuum line from the small 4-line connector (located on the pass side near the firewall) connected to it, there shoul be one large line going from the accesory vacuum tree to the intake, and your pcv valve. All these shoulod be plugged into the back of the intake. What one was disconnected? __________________ 89 notch-finally not stock!! ported gt40's, ported cobra intake, 65mm tb, 75mm maf, mac cai, lt's,prochamber, fms 1.6 rr, 125 shot.