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IS - 1st Gen (2001-2005) Discussion about the IS models up to the 2005 model

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Old 07-13-19, 06:58 AM
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TrueGS300
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My buddy has an 01 IS300 that keeps throwing P0125 insufficient coolant temp in a quick enough time. Put a new thermostat in it and bled the system. New sensor too. What else can be done?
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Old 07-19-19, 08:40 AM
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daddystop
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Test the wiring between the ecu and the sensor.
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Old 07-19-19, 05:02 PM
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He gave me the wrong description of the code. It was for an O2 sensor. B2S1. Wasn't going into closed loop quick enough. All good now.
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