I own a 2002 Ford Taurus with a V6 DOHC engine, currently at 139,400 miles. I'm preparing for a smog inspection and used my OBD-II pocket scanner to check for trouble codes. The PO430 code appeared today — it wasn't present a few days ago. What does this mean? Could this cause my vehicle to fail the California smog test?
I have a 2002 Ford Taurus V6 DOHC with 139,400 miles. I'm seeing a 'pending' PO430 code. Two questions: Will this cause my car to fail the California smog test? And if I erase the trouble code, will it reset all emissions monitor memory?
Please note that if the PO430 code is only 'pending' and the check engine light is off, it's unlikely to cause a smog failure — smog inspectors typically don't test pending codes. However, given California’s strict regulations, they might still flag it. Erasing the code will not reset all emissions monitors; instead, the system will show incomplete monitoring cycles, which could prevent passing the inspection.
I have a 2002 Ford Taurus V6 DOHC with a pending PO430 code. If I erase the emissions monitor memory, how many miles do I need to drive before the system resets and the monitors complete their cycle? I'm preparing for smog testing.
Hi, I've merged several related discussions into this thread to avoid duplication. Please continue your questions here. If emissions monitors are not yet ready, there's no fixed number of miles required — instead, you must complete a full Ford driving cycle. Search 'Ford driving cycle' in any search engine for step-by-step instructions on how to reset the monitors properly.
The PO430 code relates to the oxygen sensor in the exhaust system, specifically the rear oxygen sensor (after catalytic converter). A pending or active PO430 code may indicate a potential issue with the catalytic converter efficiency. Using an OBD-II scanner is essential for accurate diagnosis. For more details, refer to: http://www.obd-codes.com/p0430