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(Back)Updated 06/30/02
This page is to document dropping resistor installation for 420cc low impedance injectors.
I have decided to use small power resistors for the installation and to have the resistors wiring inside the cabin using molex connectors so that I can pull the resistors when I use the stock injectors.
Violet connector has the injector wiring shown below. I will splice in the molex connectors just below the connector. Resistors will go above ECU. 12 wires (6*2) will be run.
The time consuming part is cutting the injector wires and soldering in the
molex connectors/ shrink wrap.
Another option is to unwrap the tape off the harness and put the
connectors nearer behind the ecu where the resistors will go.
Parts:
Aluminum Power Resistors: 71-RH10-7.0 Qty 6
These are the 10watt variety:
Use 7 Ohm / 10 Watt and 7Ohm, The 25 watt version works too:
Aluminum Power Resistors: 71-RH10-7.0 Qty 6
Molex Plugs: 538-03-06-2061
Molex receptacles: 538-03-06-1062
.062 Crimp Pins: 538-02-06-2103
.062 Crimps: 538-02-06-1103
25watt resistors shown, 3/4" long. 10watt are 1/2" long.
AFM Wiring:
For reference to Cobra MAS installation:
Ford
Cobra MAF wiring.
Nissan AFM
wiring.
What I am doing is I got a bad Nissan AFM and cracked it open and retrieved the AFM connector. On this connector are term pins and they are labeled A - F. I solder the Cobra wiring adapter to the Nissan connector like so,
Cobra A (red) goes to Nissan term pin E
Cobra B (Black) and Cobra C (gray signal ground) goes to Nissan term pin
C.
Cobra D (?) signal wire goes to Nissan term pin B.
Now just plug it in. This avoids rewiring the harness. Also allows reverting
back to the old AFM/ecu.
