Harness & Hardware Kit – Secondary NTK WBO2 for Methanol

For the ultimate in oxygen content reading in your exhaust, we recommend going with the Lab Grade NTK oxygen sensor upgrade.

The GEN4 ECU board will have a microprocessor installed dedicated for the lab grade NTK oxygen sensor. This will allow the AFR ranges to read as low as 3.0AFR. We recommend this on all methanol-based engines that will run AFR’s in this range. This is the secondary oxygen sensor which will be installed and configured on your secondary oxygen sensor connection residing on Header 2.

By having dual NTK oxygen sensors installed, the ECU will read each bank of the engine and can control each bank in closed loop AFR control.

BS4-005-012: GEN4 ECU microprocessor upgrade, Lab Grade NTK Sensor and wiring harness. Harness is pre-terminated with all connectors and labeled for all connections.
Parts Included: GEN4 Microprocessor controller upgrade, One secondary header 2 harness, One NTK lab grade wide band oxygen sensor

BS4-005-021: GEN4 ECU microprocessor upgrade and Lab Grade NTK Sensor. A wiring harness will not be provided.
Parts Included: GEN4 Microprocessor controller upgrade, One NTK lab grade wide band oxygen sensor

BS4-005-022: GEN4 ECU microprocessor upgrade and wiring harness. Harness is pre-terminated with all connectors and labeled for all connections. The lab grade oxygen sensor will not be provided.
Parts Included: GEN4 Microprocessor controller upgrade, One secondary header 2 harness

BS4-005-023: GEN4 ECU microprocessor upgrade. The lab grade oxygen sensor and wiring harness will not be provided.
Parts Included: GEN4 Microprocessor controller upgrade