try HEI mod it should work http://www.mx-3.com/phpBB3/viewtopic.php?f=15&p=461052
It's part of the distributor
it is in ths distributor i just changed my for 80.00
you need to reset the timing the distributor did not go back in correctly
Number one chamber is the one closest to the distributor or crank angle sensor, number two is closest to the firewall. T is top and trailing, L is lower and leading. On the distributor cap the holes are marked L1-L2 etc.
Camshaft position sensor of Mazda Milenia 2,5L DOHC is inside ignition distributor (the same part with iggnition comutator).
#1 is front cylinder, distributor rotates clockwise, firing order is 1342, timing is 6 btdc
1,3,4,2 Number one is at timing cover closest to the distributor.
Number one chamber is the one closest to the distributor or crank angle sensor, number two is closest to the firewall. T is top and trailing, L is lower and leading. On the distributor cap the holes are marked L1-L2 etc.
Below the right head under the Timing cover should be a plug with two wies going into the actual head. The cam position sensor is part of the distributor on the 2.5L V6.It is located near the timing belt cover on the front bank passengers side on the 2.3L V6
It is located on the inside of the distributor . Three pin connector .
Most common problems on Miatas are a bad coil pack, Cam Position Sensor, or the Crank Angle Sensor. If you've recently changed the timing belt, it is a common mistake to place the timing wheel on backwards, which will also prevent it from firing.
the sensor is behind the timing belt cam gear.