7.0 HARNESS INSTALLATION
7.1 Attach main harness connector (Connector #8) to the FRPDB. Use a Phillips screwdriver to gently snug the mounting screw for this connector. Access to this screw is through a hole in the back side of PDB.
7.2 Attach the PCM Connector (Connector #15) to the cowl pocket (outside 70 pin connector) of the PCM
7.3 Attach the Auxiliary Inline Connector (Connector #16) to the mating inline connector of a 2011 MY or newer engine harness.
7.4 Attach the 15 pin FRPDB Connector (Connector #7) to the FRPDB. Attach the cooling fan power lead (orange wire with eyelet) to the cooling fan power lug using supplied nut (refer to picture in section 10). Leave the lid off of the FRPDB until verification of installation is complete to allow for trouble-shooting if necessary.
7.5 Using a sheet metal screw, attach the eyelet (Connector #12) to the inner fender or bulkhead. Verify that you have a good reliable ground path from the battery negative post to the location being used for this eyelet on the chassis. In general, the resistance from the battery ground to this chassis location should be less than 0.1 ohm.
7.6 Find a mounting location for the Accelerator Pedal. Ensure that the mounting location is sufficiently strong so the mounting surface will not fatigue over time from the constant usage of the accelerator pedal. If necessary, fabricate an additional support plate for mounting the accelerator pedal. Once the pedal is mounted, attach the Accelerator Pedal Connector (Connector #4)
7.7 Attach the OBD II Diagnostic Connector (Connector #5) at a location of your choosing that will provide easy access for connection of diagnostic tools. This is usually under the dashboard on the driver (left) side of the vehicle. Verify that the connector, once mounted, does not interfere with any part of your body while in the seated position.
Important Note on the Starting System
This kit includes connections and installation instructions for PCM controlled engine starting; however, it is not required that the customer utilize this option. Customers may choose to use their existing non-PCM controlled starting system if desired. If non-PCM controlled starting is used, step 8.2 C may be omitted, and unused blunt leads should be cut to ~2” length and sealed using heat shrink.
8.0 WIRING CONNECTIONS
8.1 Locate each of the Blunt Leads. This is where you will need to make all of the soldered connections for the harness.
8.2 Connect the blunt leads as follows:
- Blunt Lead 1 – Ignition Switch Position (Red/Light Green Wire): Connect this wire to a SINGLE SOURCE on the ignition switch that provides 12 Volts when the key is in either the ‘Start’ (cranking) or ‘Run’ position. It is imperative that this circuit be reliable, the PCM will interpret an intermittent voltage on this signal as a request to shut down the engine! (Hint, if your engine shuts down after a hard launch check here first).
- Blunt Lead 2 – Fuel Pump (Dark Green): Connect to Fuel Pump positive. Separate ground for fuel pump must be provided. The fuel pump will be running any time key is on.
- Blunt Lead 3 – Starter Motor Request (Red/Light Blue): Connect to start node of ignition switch so that 12 volts is provided when engine starting is requested.*
- Blunt Lead 4 – Clutch Position (Neutral Switch) (Dark Blue/Orange): This circuit must be grounded either directly to ground or through an optional customer provided clutch pedal switch.* (PCM will not engage the starter without proper ground/switch)
- Blunt Lead 5 - CTO (Tan/Yellow): This wire is the tachometer lead. This is not a mandatory connection.* *If non-PCM controlled starting is used, step 8.2 C may be omitted, and unused blunt leads should be cut to ~2” length and sealed using heat shrink.
9.0 Fuel System
The PCM is calibrated for a return style fuel system as shown below.
- Set regulator to maintain 55 psi delta fuel pressure across injector (55 psi at fuel rail with engine off):
- Use only AN type fuel fitting to interface with OEM fuel rail.
- Fuel pressure regulator must have reference to manifold vacuum.