WebMar 17, 2024 · Chevrolet. If you experience a P0420 code in your Chevy, it is often due to an exhaust leak before the catalyst. It can also be caused by a faulty downstream oxygen sensor (rear) or a faulty catalytic converter. ... However, it is often caused by a faulty catalytic converter, which usually costs between $500 to $1500. The estimated cost of ... WebMar 1, 2007 · The first time the code kicked out, I was only doing normal around town driving. Light stop and go and I wasn't being a lead foot. Now, I've also noticed when I'm a …
2004 CHEVROLET SILVERADO C1500 Photos MS - JACKSON
WebJun 28, 2024 · Code P0452 GMC Description The fuel tank pressure sensor measures vapor pressure or vacuum in the Evaporative Emission ( EVAP) system. The Engine Control Module ( ECM) supplies a 5 V reference and a low reference circuit to … WebOct 4, 2010 · 2004 chevy silverado, code P0446: (EVAP) vent control circuit malfunction. Recently had code P0442, found and replaced a broken gas cap gasket. Drove ~50 miles and the check engine light came back on. … read more Pete Automotive Diagnostic Specialist General auto certifications 39,125 satisfied customers coven tv series
P0452 EVAP System Pressure Sensor/Switch Low DTC - OBD …
WebJun 19, 2011 · As mentioned before, both codes mean, in layman's terms, that the PCM (Powertrain Control Module= Fuel Injection Computer) has noticed that it needs to dump more fuel than necessary to compensate for a real or perceived vacuum leak that are affecting a specific bank of cylinders. WebFeb 19, 2024 · P0446 Chevy, also known as evaporative emission system vent control circuit malfunction, indicates that the computer in your vehicle has discovered (or believes it has identified) a problem with the operation of the EVAP system vent valve. The vent valve is managed by your car’s computer (it also controls the purge valve). WebThe only symptom you will notice with a P0452 code is the service engine soon or check engine light will illuminate. In rare cases you may smell a noticeable fuel vapor. Causes … coveofacet