Chevrolet Performance 19331517 Manual Del Usuario página 8

For manual transmission applications, a pair of wires for connection to a top of travel clutch switch have been provided. Not to
be confused with the bottom of travel clutch switch or neutral safety clutch switch which prevents starter engagement without
fully depressing the clutch. The top of travel clutch switch is used to briefly disable fuel when the clutch is depressed which helps
decelerate the engine and makes upshifting easier and quicker. A compatible clutch switch will have two pins which provide a
closed circuit when the clutch pedal is fully released and an open circuit as soon as the clutch pedal is partially depressed.
Make sure all intended engine and vehicle side connections have been made before proceeding to connect power.
Attach a 12 volt ignition switch feed from the vehicle to the pink ignition switch wire in the harness (this is required to enable
the proper power-up sequence of the ECM). This can be routed into the passenger compartment with the accelerator pedal
connector and diagnostic link connector. Next, connect battery power (minimum 8 gauge wire) to the horizontal stud on the fuse
relay center. The other two studs are for accessories and are 50 amp fused), and the harness installation is complete.
Additional features and bulkhead connector descriptions are also included below:
System Features
• The Fuse/Relay center contains all required fuses and relays for proper engine operation. Spare fuse and relay openings are
provided for customer's possible future use.
• The Fuse/Relay center includes a malfunction indicator light (MIL) which will illuminate in the event of an engine fault code. See
your Chevrolet Performance dealer to have this code retrieved at the diagnostic link connector in the fuse/relay center. Codes
can also be retrieved using an aftermarket diagnostic scan tool capable of reading this configuration. Note that the MIL will
illuminate when the vehicle is keyed-up - this is normal, and it will go out once the engine is started if there are no current fault
codes. A redundant MIL wire is included in the wiring harness to allow a light to mount inside the passenger compartment. The
wire is located in the wire bundle near the pedal connector and the ignition voltage.
• Two cooling fans are controlled by the ECM. Control is set to turn on the first a 12 V fan at 97 Deg C (207 Deg F) coolant
temperature and the second fan at 105 Deg C (221 Deg F). The fan control wires are fused/relayed and can be connected
directly to the fans.
• The fuel pump is controlled by the FPPM. The control wires supply a pulse width modulated (PWM) 12 V and should connect
directly to the fuel pump.
• The gray fuel pump wire is fuel pump control, or positive. The Yellow with Black stripe wire is the ground or reference. The
solid thin Black wire is for shielding and should be attached to the fuel pump shielding pin. If no shielding pin is present,
leave this wire unterminated (blunt cut) and taped to the harness. Chevrolet Performance pump P/N 19303293 does NOT
have a shielding pin.
LT4 Crate Engine Control System Kit
TITLE
ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1/2 x 11
WHITE 16 POUND BOND PAPER. PRINT ON BOTH SIDES, EXCLUDING TEMPLATES.
TO BE UNITIZED IN ACCORDANCE WITH GM SPECIFICATIONS.
Main
Battery
Connection
REV 01FE17
Auxiliary
Devices
-50 amp
fused
19331508
PART NO.
DATE
21JL16 Previous Revision are Archieved
01FE17 Revision - Blake Nye
8
SHEET
REVISION
45
OF
AUTH
N/A
N/A