how high was your idle? I'm running into exactly the same problem as well. I did a ZE swap and so far have switched back to the American intake and exhaust mani, replaced the o2 sensors, re-hooked up the EGR, just to only have the o2 heater come up as ready...
I've been having problems trying to get my car to pass emissions. I'm not pulling and codes or anything. It's just that I'm failing the readiness check. I've been reading about the proper Mazda drive cycle that follows:
1) Start vehicle and idle 5 min.
2) Rev engine in neutral or park to...
how high was your idle? I'm running into exactly the same problem as well. I did a ZE swap and so far have switched back to the American intake and exhaust mani, replaced the o2 sensors, re-hooked up the EGR, just to only have the o2 heater come up as ready...
Idk, I'm in the same boat as you. So far, I've reverted back to the DE intake and exhaust mani, and hooked the EGR back up, replaced the o2 sensors, and the only "ready" I'm getting is for the o2 heater. I'm gonna try a couple different drive cycles and see if i can't get any results.