CPS first then TPS (fuel pedal). The new style CPS has gold colored contacts. The trouble ones had silver colored contacts.
2001 up don't see RPM's on the Tach upon cranking.
Any puter driven engine needs reset before diagnosing by disconnecting the battery(s). This clears all codes and resets the PCM to the OEM defaults. If there's truly a problem, new codes will be quickly set and the problem will continue. Reset the puter after the repairs.
I reset my 7.3 once every month. This gets me the best drivibility and keeps fuel mileage at maximum. My 27k mile life time fuel mileage is 15.5mpg with pulling 16kGCW to 31kGCW for 9k miles. Empty is 19mpg consistantly. It's just like windows, the puter will crash often. Ford must have used MS engineers... LMAO
7.3 OBDII codes can be read by a Ford OEM program, about #350 for the PC reader type. This the cheapest I know of for Ford code readers. The cheapies don't have the extra OEM OBDII codes. There's a couple online sources.
I assume you have changed the fuel filter and checked for water?
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Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
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