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90 4-Runner H2OS signal, Code 25 & 26
Posted to Technical Discussion Forum on 4/7/2000 3 Replies

Hello all,

We have a 90 4-Runner here with a 4 wire flange mount style heated oxygen sensor.

Solid check engine light, Codes 25 and 26 in system for rich/lean air fuel, SomeData says check Oxygen Sensor first and then continue with other possibilities. Hon... Login to read more.

3 Replies Received (View Replies)