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Idahome
Joined: Wed May 2nd, 2018
Posts: 2165
Name: Jamie ... Occupation: Elevator Design Worlds Tallest Buildings ... Interests: Ranger Based Vehicles and OFFROAD ...
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maybe yes and no
2002 Ranger slightly diff from 02ST
What you need to do is get the pinout for your C115 plug on the 5.0 side for your year donor. If its a 2000 your in luck I have that info
Then get the same for your Ranger, in a Ranger I'm pretty sure its plug C112
Compare the circuit numbers on each pin
Whatever does not match up you make a chart and then research each wire and where they go.....its tons of fun! I cannot sleep when I get into project like this until I have it all sorted out
You can find the books on Ebay, I paid $17 for a used 2002 Sport / Trac wiring book, I already have 2000 Explorer book
Anyone doing a conversion like this should buy both books...... so much good info in there and once you build something custom you need to back it up with notes/info for future repairs/diagnosis
Finished the sport trac wiring yesterday, at least until we tackle the speedometer, see if shes working or not.
She is running a little rough keep getting P0340 and 350 = circuit failure cam pos sensor and coil pack circuit issues.
I am going to test the wiring, then ohm the coil packs and cam sensor. I believe our cam synchronizer has bitten the dust, but before I buy one I always test parts......
Oh yeah and a weak or faulty alternator can cause these codes on a OBD2 explorer....so I need to test the alternator functions
He is how the wiring worked out for this swap at the C110 (02st) and C115 (2000 Ex) 42 pin plug: (All of these wires have been verified in the book and then on the actual truck)
Pin 8
C110 is BK/LG - 785 - Hot all times
C115 is YE - 37 - keep alive +
Pin 8 is good, keep alive power for PCM
Pin 13
C110 is WH/LG - 1215 - TX signal
C115 is TN/WH - 1017 fuel cap indicator book says BK/WH, my truck is tan with white, not sure why hoping its still circuit 1017 which is fuel cap ind. I will test at PCM pin)
So pin 13, the TX signal is present in a 02 sport trac, we do not use it for the 5.0 drivetrain. This wire is not connected on the truck side.
If you remember from earlier in the conversion I had a bk/wh wire that used to be in pin 41, this is the fuel cap light wire for a 02 trac. I re routed this wire into pin 13, so now it is the fuel cap light feed to the pcm
So pin 13 remains 1017 on the 5.0 side and wire 1017 was moved from pin 41 to pin 13 on the truck side
PIN 23
C110 is DB/LG - 343 - theft light indicator to pcm
C115 is blank
So Pin 23 remains blank on the 5.0 side, we no longer have a theft light input to a 5.0 PCM (v8 pcm is not parts of the pats system)
Pin 26
C110 - blank on 02 truck side
C115 - DG/WH - 253 - oil pressure output from engine to instrument cluster
So Pin 26 we routed the DG/WH on the truck side of things from the C139 plug and routed the wire to this pin. Result is a working oil pressure gauge
Pin 27
C110 - blank on truck side
C115 - LB/PK - wire is present on 5.0 side, book says it is NOT USED believe it or not.
Pin 27, remains, unknown PCM wire on 5.0 side goes nowhere on truck side
Pin 28
C110 - DB/OG - 325 - start relay control from PCM
C115 - OG/BK - 394 - air suspension input to pcm
so Pin 28, we cut the OG/BK air suspension wire on the PCM side and turned it into a ground wire. So now the DB/OG circuit 86 from starter relay control is grounded. Remember in 02 the trac has PATS E and the PCM controls the starter. We have wired in PATS A from the 2000 5.0 donor, so we needed to ground the starter relay wire so our ignition switch will run the starter. The 2000 model PATS A disables fuel injectors, not the starter.
Pin 32
C110 - GY/OG - 1216 -RX signal from PCM
C115 - Empty
Pin 32 remains as is, 5.0 PCM does not use RX signal wire as it is not part of the PATS system, so the RX signal wire goes nowhere.
Pin 38
C110 - RD/WH - 463 - NSS signal from DTRS to truck (gem module, 4x4 system)
C115 - YE/WH - 357 - throttle pos input. - EMPTY on my truck, book says there is a wire, on a 5.0 there is not.
So pin 38 is the neutral safety feed on the truck side of things. If you are using a electronic shift transfer case you will NEED TO ADD THIS WIRE. Run a wire from the 5.0 DTRS to pin 38 on C115. our sport trac is AWD
Pin 41
C110 - BK/WH - 1017
C115 - LG/RD - alternator batt light to voltage reg in alt.
Pin 41 bk/wh wire was moved to pin 13, gas cap indicator
Pins 41 and 42 were wired up to the alternator on the truck side of things.....earlier in the thread from plug C139 to these two pins.
Thats it!
Your 02 sport trac 5.0 is now wired, runs and starts and moves under its own power. Time to test the trans out and see if we have a working speedometer, odometer, ABS and cruise control = ROAD TEST
For me I'm still battling some misfires and stumbling under load related to the P0340 CPS code BUT our truck, starts, runs, moves under its own power AND the PCM is talking to the scanner....after 2 run cycles I get the CEL and codes....
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I build custom RBV, specializing in drivetrain conversions, wiring, suspension and complete custom trucks
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