Working with a 2007 5.3l truck application, In Tuner CATS OBD2 Tuner there are a few settings for ''crank decoder method'' and "camshaft pulse per revolution" Default value is 8 for decoder, and 4 for pulses per rev.

I got the following info from John at TC about the different settings for crank decoder method, as follows.

0 = 24X Angle
1 = 24X Time Crank A
2 = 24X Time Crank B
3 = 6X Threshold
4 = 6X Percentage
5 = 5X Threshold
6 = 5X Percentage
7 = 58X Threshold
8 = 58X Percentage (stock setting)
255 = Disabled

I have a gen 3 24x/1x block, crank, timing set, and camshaft setup with a drill. I've wired the crank and cam sensors up to an E38 on my bench harness and using Tech 2 to monitor crank rpm and pulse activity. I've tried setting 0,1,2 and so far I am not able to see any crank activity, however, the ECM is reading the 1x cam sensor. I have tested the wave form on the sensor outputs and verified good 5 volt square wave signals from cam & crank sensors. anyone else messed with this or have any other input??

thanks

Brendan.