Hi I can find no body control codes related to 0303 only engine code P0303 and that is misfire cylinder 3 ? Cheers Ron

Good news, seek and you will find. Cheers Ron

Hi Technician I dont know that particular system normal diesel protocol is the throttle valve is only used for egr feathering and engine shut off,when the engine shuts down the throttle closes to cut air supply to lessen engine judder then reopens, when egr is operative the valve is controlled to cr...

Hi Looking at your last capture there are no voltage/time scales? so I assume red .1>.9v and green around .6v. The distance/time between the red channel drop on decel and the green channel indicates the cat oxygen storage capacity a good cat is around 2>4 secs or better, assuming the red o2 is switc...

Fueling looks OK, confirm readings [02] with a cruise road test if you have a quiet length of road, use any scanner that will graph the signals and select OBD2 generic its often faster to find emission readings there than model specific, the high flat line the post sensor should produce does not mea...

Not much info to go on, assuming ch A is pre cat and B is post it does not look good, if not already done recheck at a steady 2000 rpm eng temp up, Ch A should read as shown and B should show a steady 500 > 700mv confirm this with a steady light load cruise road test ? if post cat oscillates the cat...

Good job Sharpy, with product knowledge, sticking to basics and the aid of a good scope you nailed it
RonW

Stick to basics, why concentrate on this area, this tool will have live data, use this to set your direction, the scope function does not have the full capabilities of Pico but with understanding of the basics it will help find a conclusion. Check out Scanner Danners web site for Snap On info. There...

Hi Autobrejo Concentrate on the fuel trims at idle and steady 2500 rpm Long term should show as a stored Pid value if there is persistent mixture problem , live data both S/T and L/T will show if you have a rich or lean condition thus help narrow your path eg [spark tracking out] rich condition . Ch...

Hi Technician Happy to read the charging problem is solved. There are many reports of pattern parts not performing up to stranded both sensors and actuators and in many cases this has been proven by comparative measurement . Looking back, you fitted a Ford alternator [OE I presume] and a silver calc...