i bet there's an issue with the sensors' 12volt circuit. for example. on nissans the o2 sensor, the tps sensor, and other sensors the ecu uses for determining fuel trim pretty much get power from the same source. haven't taken the time to examine the power and ground distribution on miata, but verify that these sensors are getting the ignition power to them etc. if not, trace the circuit, it could be a short in the power wire, or it could just be a blown fuse. the o2 sensor you tried reinstalling could have a short in it and that could have been what popped the fuse. gl man
Dave =]
OOPS
Just read the post above this, glad u fixed it, gj man =]
Reply With Quote