Going to check cranking fuel pressure today. Replaced the block off plate with a new habd primer on the filter housing. Will report baxk with...
Engine rpm reads while cranking yes.
Performed injector solenoid test. All 6 checked good. Also monitored cranking rpm and tps min/max. Also did cooling fan test. The ecm appears to...
Im still learning to use cat et...just bought it. Lol but i cleared the active and stored codes. None were electrical in nature: engine over...
Timing sensor = cam position sensor Correct?
Ok will check that... But why arent the stop engine and check engine indicator lights coming on???
I hooked my laptop with cat et to the dataport in cab and it connects just fine. I can read codes and see cslibrations etc... I apologize but...
Update: My trucks 40 pin plug has no j1939 connections made from the factory. Pins 36 and 33 have blank plugs in them. I have j1922 and j1587...
I guess that means the ecm is turning on...just not communicating with the truck???
Ok So i have 4.8v when key on at pin 36. That should be the coolant level sensor output voltage. Now what?? Lol
I personally not seen this truck run. :( I will connect my laptop to it and see what happens Question: if the laptop wont connect to the...
The truck was purchased as a non running project. As stated: ive confirmed and load tested the ecm supply hots and the ground. And ive confirmed...
Ok gotcha. Will check it first thing in morning. Ty
The bottom plug on my ecm goes into the truck cab....the top plug goes to the engine sensors. So how does pin 36 on the bottom plug (schematic)...
Ok ill check that asap and report back.
And what does sensor voltage mean if i have it?
Ok Where would i check for sensor voltage?
Ok, So turn the key on with ecm plugged in and check the sensor plug (top) for sensor output voltage? This will verify what?
The cat guys kept saying the truck was supposed to supply 5v to a couple pins on the datalink and that would allow the ecm to turn on. I dont have...
Ive all but ruled out a bad ecm. Its got to be in the truck wiring somewhere...but idk what else to check because i cant fund any more info on how...
