Decoding the P0030 Code A Step-by-Step Troubleshooting Journey

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 ... Hello, I am in need of smogging my cayenne in order to register it and my check engine light just came on. The code I'm getting is P0030. It is likely to be your stat as for £40 I suspect it isn't a GM or oem part. The problem can be intermittent as the element can leak voltage to earth. The code references a heater circuit problem. So, can the IID tell me if I have power, ground and resistance? Looks like the connector is really difficult to ... Problems/Service/Repairs - Codes p0030, p0033, and p0135 - I have a 2006 HHR w/2.4 engine. I'm getting check engine light w/codes p0030, ... 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. P0030 may be defined as a code for HO2S heater control circuit (Bank 1 Sensor 1). This code indicates that the engine should operate properly; the engine ... ... . The garage gave me the fault code: P0030 - P0030 HO2S Heater Control Circuit (Bank 1 Sensor 1) Can this be fixed easily ? I've... 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. Re: P0030 and P0135 Codes ... Check the connector on the oxygen sensor between the cat and the cylinder head. Try disconnecting it and then ...