I have seen two(2) different tooth/notch pattern on the Renix XJs that are used to generate the CPS voltage spikes. One flexplate pattern has three 120 degree sectors with three large notches separating each sector. Between the large notches are 20 small teeth. Supposedly, the ECU counts the small teeth and knows that TDC is at 12 teeth. Each large notch represents two (2) pistons moving in the same direction, i.e. 1 & 6. The sync generator, in the distributor, then tells the ECU if the piston is 1 or 6 in order to fire that cylinder..
The other flexplate pattern to generate the CPS voltage spikes has a large tooth followed by a large notch followed by the 20 small teeth. Supposedly, the larger tooth and larger notch causes the CPS to send a higher voltage spike to the ECU than the smaller teeth spikes. Higher spike voltages tells the ECU that a piston will soon be a TDC, 12 teeth later.
Did Renix use different ECU configurations for the two(2) different CPS patterned flexplates? Or can we use either flexplate CPS pattern with any version Renix ECU?
Best regards,
CJR
The other flexplate pattern to generate the CPS voltage spikes has a large tooth followed by a large notch followed by the 20 small teeth. Supposedly, the larger tooth and larger notch causes the CPS to send a higher voltage spike to the ECU than the smaller teeth spikes. Higher spike voltages tells the ECU that a piston will soon be a TDC, 12 teeth later.
Did Renix use different ECU configurations for the two(2) different CPS patterned flexplates? Or can we use either flexplate CPS pattern with any version Renix ECU?
Best regards,
CJR