I am putting a 3sge into my 89 Camry, went to the junkyard today to get a celica wiring harness and got one with a 4 wire o2 sensor, its from a 89 GTS and the sensor is by the rack and pinion, not on the ex manifold, and the ex manifold is made real high with the y pipe way up by the head area, much higher than my 87 manifold on my 3sge and with this different manifold the egr tube will have to come from somewhere else because on my 87 motor it comes from the drivers side of the ex manifold and this one the owner pinched off the tube because of no place for it to go?