Fri Jul 11, 2014 6:19 pm
I don't have a CIS-E system or DPR here at present so I'll be doing the CIS-E code last - volunteer test subjects most welcome
From the specs I can find the DPR is 19ohms, and probably driven PWM with some form of series load in the bosch ecu, as without it duty at load would have to be around 5% or less to get down to the specified current.
DPR 19 ohms pwm (at 100hz?) with an unconfirmed range of 0-140ma with normal operation between 10-35
roughly rounded, 19ohms at 12v gives 600ma and at 13.8 gives 720ma so starting duty to get 40ma would be 40/720=0.055556 or around 5.5% duty
an additional 160ohms in series should bring it to 33.5ma at 50% duty so the factory DPR operation range would need to be established to choose a suitable series load.
The reverse polarity only seems to be for fuel cut so I'm guessing the planned INJ2 output and the H-Bridge setup could be ignored completely if deceleration/rev-limit fuel management was not a priority