The relay is that easy.... Just run a wire from the 8 gage black wire w/ white stripe to starter solinoid... Connect starter wire at bulkead to trip relay and poof , its magic
Built Not Bought #447, 1992 Jeep XJ Supercharged 4.7, 1988 Jeep YJ Auto 4.2L, 2008 Commander Limited HEMI, 1990 Jeep YJ 4.7L Fuel Injected AW4, 1981 Scrambler 304 Auto
I Am The Jeep Surgeon!!!
Originally Posted by meangreeny View Post
And the 2.5l pin out that was posted matches the 4.0?
OK I am going to run the gambit of possible issues so keep in mind I am not sure what you have done with the entire build out so they are not meant to be insulting to you. Did you use the correct flywheel? The position of the sensor was an issue and you said you were slotting it, are you sure your sensor is close enough to get a good trigger? The VSS uses the same power as the cam/crank and if it shorts it will take out the signal from the cam/crank. Are the wires from the vss ok? When you ran the new fuel pump and fuel lines to the fuel rail for the higher pressure pump did you hook them up correctly to the fuel rail and tank? Possibly switched the supply and return? Do you have spark at the plugs? If you do did you pull the distributor and flip it 180 out? Also on your 2 fault codes, start by doing a battery disconnect for a long 10 count and see if they clear. If they do not clear then check the voltage for each one on the connector and the continuity of the sensors to the ecu. Do a real good cursory check of the ecu connector and the sensor connectors to make sure there are no loose pins. Take the backshell off the ecu connector and make sure nothing is shorted or loose.
Ok everything was existing all i am trying to do is interconnect the aw4 wiring into the existing yj harness. The two vss wires are currently not connected from the aw4 harness because it was a 2 wire vss in the 91 xj i used and my yj is a 3 wire vss. The flywheel is a 91 no renix and the crank sensor is the same on a 91 auto xj and my 92 standard yj. Somewhere in my interconnection I must have made a mistake or maybe i need to hook up the transmission vss wires and not my yj's harness wires. There cannot be much on the aw4 wiring that can prevent engine start up but somehow or other i am missing something
Originally Posted by wrangin_myNeck View Post
Two things that kept my Jeep from running after the swap was;
1) Spark plug wires had to be swapped around 180 degrees,
2) Security feature over ride. Locate the purple and white twisted pair of wires, cut them about six or so inches away from the PDC, and splice them together.
Here are my two posts on these.
Security wires. http://www.jeepforum.com/forum/f12/i...l#post10338886
Spark Plug wires. http://www.jeepforum.com/forum/f12/i...l#post10382288
2015 Cherokee Trailhawk V6.
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