Spartan 2 Troubleshooting

[Alan To]

Power-up Voltage Test

Sensor can be connected or disconnected.

1. Disconnect all devices connected to the Linear Output (Green Wire)
2. With a multimeter, measure the voltage of the green wire during Spartan 2's initial power on. You should be seeing ~1.66[V] during the first 5 seconds, 3.33[V] the next 5 seconds, please confirm this.

Free Air Test

1. Remove Sensor from the exhaust
2. Connect the sensor to the wideband controller and power on the wideband controller
3. Wait about 2 minutes, the sensor should get hot (be careful), please confirm it gets hot
4. With the sensor in Free Air, the wideband controller should read max lean (~20AFR, 5v on linear output), please confirm this

Sensor Test with Lighter Gas

1. Remove Sensor from exhaust
2. Connect the sensor to the wideband controller and power on the wideband controller
3. Wait about 2 minutes, the sensor should get hot (be careful)
4. With a cigarette lighter, give the tip of the sensor some gas, do not light the gas. With enough gas, the wideband controller should output max rich (~10AFR, 0v on linear output), please confirm this