Harness & Hardware Kit – Primary 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 primary sensor which will be installed and configured on your primary oxygen sensor connection on the main engine harness residing on Header 1.

BS4-005-011: GEN4 ECU microprocessor upgrade, Lab Grade NTK Sensor and main engine oxygen sensor connector.
Parts Included: GEN4 Microprocessor controller upgrade, One main engine harness connector, One NTK lab grade wide band oxygen sensor

BS4-005-020: GEN4 ECU microprocessor upgrade and wiring harness. An oxygen sensor will not be provided. Harness is pre-terminated with all connectors and labeled for all connections.
Parts Included: GEN4 Microprocessor controller upgrade, One main engine harness connector