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Other sensors

Separate CLT sensor

If you encounter issues with the OEM engine temperature sensor, such as fluctuating readings or a missing or damaged OEM ECU, consider connecting an independent temperature sensor.

It is recommended to use a 2-wire sensor from an injection engine, with a resistance of 2-3 kΩ at 20°C.

Connect the SGND wire of the new sensor in parallel with the GND wire of the MAP sensor

Enable the manual mode and separate sensor options

If calibration of the sensor readings is required, please follow these steps:

  1. Click the calculator icon adjacent to the table.
  2. Set the sensor voltage at three specific reference points:
  3. 0°C (temperature of ice water)
  4. Room temperature (approximately 20°C)
  5. 100°C (boiling point of water)

TPS sensor

You can use a modern throttle position sensor (TPS) instead of the original throttle switches. The 5V power supply and ground must be connected from the MAP.

Universal lambda sensor

If you do not have a lambda probe or the sensor is faulty, you should install a universal Bosch sensor 0258986507 or 0258006537. It is more reliable than the original 3-wire sensor.

The standard lambda probe has 3 wires: ECU signal, ECU ground, heater +12. It does not have a heater ground wire because the exhaust pipe is used as ground.

The new lambda sensor has 2 separate heater wires, and the heater itself is not connected to the sensor housing. This is a more reliable design.

Wiring diagram:

  • white wires - to the lambda heater connector or to the fuel pump. One of them is the power supply, the other is the ground. Polarity does not matter.
  • Black - signal to Invent Jetronic
  • Gray - ground to Invent Jetronic (do not connect the ground elsewhere)

Replacement MAP sensor

If the MAP sensor on a naturally aspirated engine has failed, you can purchase the 120kpa sensor from our website or use the following part numbers as substitutes:

  • Bosch 0261230217
  • Bosch 0261230299

In the event of a turbo-MAP failure, there are no direct substitutes available. You can purchase the 400kpa sensor from our website.