P0030 Code Diagnosis Empowering You with Knowledge and Solutions

Code p0030 ... It is indeed a code for an O2 sensor which is located just before the catalytic converter on the left bank exhaust. (bank 1 sensor ... What causes the P0030 code? Generally, if the code is cleared and reset, and the engine warning light comes back on along with the OBD-II code, this means that ... The only quick diagnosis you may want to try is reverse your two pre-cat O2 sensors and see if it throws a code for the other bank. If so, then O2 is bad. P0030 is a heater circuit code. The first thing to check is that the harness from the sensor connection back to the ECU is sound with no damage. Re: P0030 and P0135 Codes ... Check the connector on the oxygen sensor between the cat and the cylinder head. Try disconnecting it and then ... Car seems to drive normally / no limp mode / reduced power. Initial codes found: P0030 - HO2S Heater Control Circuit Bank 1 Sensor 1 P0050 - HO2S Heater ... Personally I would check the O2 sensor first, if that checks ok then do the longer job of checking the wiring. disconnect the sensor and check resistance. The code is telling you that the heating element in the lambda is open circuit. Probably the sensor itself but worth looking at the wiring first. Hey so I threw a p0030 code the other day. O2 Heater circuit failure. Cleared it and checked for 12v to sensors. All seems well but it threw ... Customer: I scanned and received a P0030 VOLKSWAGEN Code - HO2S Heater Control Circuit Bank 1 Sensor 1. Mechanic's Assistant: Have you seen ...