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Title: P0030 HO2S Heater Control Circuit Bank 1 Sensor 1 Post by: siphonfilter on June 27, 2015, 07:28:46 PM http://engine-codes.com/p0030.html
Hi, I have a 2003 Subaru Legacy, I replaced the Oxygen sensor and the code is still there. I checked the wiring and the voltage is there for the heater bank. I believe this to be the upstream before the Cat 02 sensor air/fuel. Any help appreciated. Moved to Bizarro? That's Bizarro. This is a real problem. |