hi i,m new to this forum, i,m looking for some help . i have a 96 camry that vibrates at idle, i changed and double checked timing belt, chked distributor, plugs, wires, iac valve,tps, no vacuum leaks, no fault codes. followed throubleshooting chart in FSM. suspect MAP sensor but not sure i.m interpeting readings on scanner correctly, it cost $325 so want to make sure b4 purchase. if anyone can help would be very grateful, thanks 