Explorer V8 Engine swap

Hey people, I have a 97 ford explorer v8 awd auto that I want to put in a 1993 ranger, question how hard is it to wire the engine, I have done 4 carb v8 swaps but the wiring on fuel injected v8 swap scares me a little. lol.

The wiring is easy. Only need about a half dozen to get the '96/97 ECU’s to light things up.

Wiring is not that hard. You have about 5 wires that must be hooked up to run the engine. A few more for gauges, and 5 additional for diagnostic port (OBD2)...

SVT

Specifics, people, specifics! I don't know enough to know which wires I need to do the swap.
I find this same lack of specifics in most answers to these type of questions. Please help in a more tangible way than saying "it's easy". Specifically which wires to what sensors and any other wiring that needs describing would be great.
Thanks,

Richard

OK, best of my knowledge on the Explorer 42 pin engine to body harness connector:

Pin 8 needs continuous hot
Pins 5, 36 need switched power
Pins 13, 34, 42 need to be grounded

Toss in pins 24 and 31 for the NSS.

1996/97
Pin Circuit Color Purpose
1 16 Red Lt Green PCM Power to relay
2 11 Tan/Yellow tachometer data link
3 915 Pink/Lt Blue Data Link Connector pin 10
4 511 Lt Green Brake On/Off switch
5 238 Dk Green/Yellow Power From Fuel Pump Relay (Fuel pump on signal)
6 658 Pink/Lt Green Malfunction Indicator (CEL)
7 679 Gray/Black Speed output from VSS
8 37 Yellow Continuous Power
9 361 Red Fuel Pump relay coil
10 29 Yellow/White Fuel level sender
11 914 Tan/Orange Data Link Connector pin 2
12 224 Tan/White Instrument Cluster
13 676 Pink/Orange VSS and PCM Ground
14 91 Purple/White Canister Vent Solenoid coil
15 926 Lt Blue/Orange Fuel Pump relay coil
16 39 Red/White Engine temp gauge
17 791 Red/Pink Fuel Tank Pressure Transducer (Signal)
18 359 Gray/Red Sensor reference voltage
19 351 Brown/White Fuel Tank Pressure Transducer (Power supply)
20 199 Lt Blue/Yellow Transmission Controls/Clutch Pedal Position Jumper
21 140 Black/Pink reversing lamps at transmission range sensor
22 107 Purple Data Link Connector Pin 13
23
24 329 Pink starter system at transmission range sensor
25 298 Purple/Orange reversing lamps at transmission range sensor
26 253 Dk Green/White oil pressure gauge
27 305 Lt Blue/Pink Message Center pin 5
28 394 Orange/Black Automatic ride control module pin 6
29 784 Lt Blue/Black 4WD Low Range indicator
30 331 Pink/Yellow WOT A/C relay coil
31 32 Red/Lt Blue starter system at transmission range sensor
32
33 463 Red/White Neutral switch for GEM
34 570 Black/White Ground
35
36 34 Lt Blue/Orange PCM Power from relay
37 198 Dk Green/Orange Power to Pin 30 WOT A/C relay
38
39 191 Lt Green/Black Vapor Management Valve coil
40 911 White/Lt Green Transmission Control Indicator in dash (overdrive off lamp)
41
42 570 Black/White Ground

Pins 9 & 15 also must be connected. Pin 5 needs to be connected to the output side of the fuel pump relay, not to power...

SVT

RangerSVT said:

Pins 9 & 15 also must be connected. Pin 5 needs to be connected to the output side of the fuel pump relay, not to power...

SVT

Click to expand...

So the PCM not only needs to "see" that the fuel pump relay is "on" but also needs to "see" both sides of the fuel pump relay?

I knew that the PCM needed the relay on signal, didn't know it had to control that signal. That's why I thought switched power would suffice for the fuel pump relay signal. Learn something every day!

Pin 5 tells the ecu that the relay is functioning. If the ecu doesn't receive this positive signal, it shuts down. Pin 15 is a ground signal to operate the fuel pump relay coil, not receive signal...

SVT