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- May 28, 2001
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Here's the info from Innovate on the temp restrictions when using the Wb sensor.
Someone had posted that they had overheat codes...
High-temperature applications update
The Bosch LSU4.2 wide-band O2 sensor (shipped as part of the LM-1 kit) is rated to operate at an exhaust gas temperature of < 1300 degrees (F), and a sensor housing temperature of < 900 degrees (measured at the bung) for maximum accuracy and control. When either of these operating temperature ranges is exceeded, the sensor can no longer be accurately controlled. Further, operating at or over these temperatures for any length of time can significantly reduce the lifetime of the sensor. The LM-1 is designed to display an error message under these conditions (currently 08- Sensor Timing Error) rather than provide inaccurate readings. For some turbo vehicles, rotary engines, and other setups, this error message can be encountered with annoying frequency. Some tips to avoiding the sensor timing error:
1) Move your sensor bung as far downstream as possible. Right before the cat, or 2-3 feet from the end of the tailpipe are good locations. 6” from the turbo is generally not an optimal location.
2) Some users have had great luck with a self-fabricated simple heat-sink fin. This works because it assists in cooling the sensor body. Take a 4-5” square piece of copper (optimal) or aluminum, and punch/drill a hole just big enough to fit over the threads of the O2 sensor. Bend it so that there are two “wings on either side of the sensor. Mount the heat fin between the sensor and the sensor washer.
Hey taffy,,, I'm now back to portin the heads on the HEMI!! [again]..
Someone had posted that they had overheat codes...
High-temperature applications update
The Bosch LSU4.2 wide-band O2 sensor (shipped as part of the LM-1 kit) is rated to operate at an exhaust gas temperature of < 1300 degrees (F), and a sensor housing temperature of < 900 degrees (measured at the bung) for maximum accuracy and control. When either of these operating temperature ranges is exceeded, the sensor can no longer be accurately controlled. Further, operating at or over these temperatures for any length of time can significantly reduce the lifetime of the sensor. The LM-1 is designed to display an error message under these conditions (currently 08- Sensor Timing Error) rather than provide inaccurate readings. For some turbo vehicles, rotary engines, and other setups, this error message can be encountered with annoying frequency. Some tips to avoiding the sensor timing error:
1) Move your sensor bung as far downstream as possible. Right before the cat, or 2-3 feet from the end of the tailpipe are good locations. 6” from the turbo is generally not an optimal location.
2) Some users have had great luck with a self-fabricated simple heat-sink fin. This works because it assists in cooling the sensor body. Take a 4-5” square piece of copper (optimal) or aluminum, and punch/drill a hole just big enough to fit over the threads of the O2 sensor. Bend it so that there are two “wings on either side of the sensor. Mount the heat fin between the sensor and the sensor washer.
Hey taffy,,, I'm now back to portin the heads on the HEMI!! [again]..
