My wife's '01 RAV4 has had the P0420/P0430 code (cat efficiency below threshold) occur since '03. When it first happened, I took it into the dealership and they replaced the cat under the 80K emissions warranty and forgot to reset the light so I did with my OBDII scanner. I thought all was well until the light came back on a couple days later.
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Jul 13, 2009 · SES light is on but I believe its unrealted as its showing a code for an o2 sensor p0430 (which I've been fighting an ongoing war with). I believe there was a valve clearance code a month ago but the dealer said that it was probably just low oil (right after I bought it), and it doesn't seem to be showing up now. P0440 - Evaporative Emission (EVAP) System - 5.5%. P0141 - Oxygen Sensor Heater (H02S) Performance Bank 1 Sensor 2 - 5.1%. P0430 - Catalyst System Low Efficiency Bank 2 - 3.2%.P0171 Meaning With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from the heated oxygen sensors 1. Aug 16, 2020 · As the code description implies the P0430 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting).
Jan 13, 2020 · They put in two different computers, still had check engine light problem. They gave up. Three years later, wife had been driving in city only, I used Seafoam to clean intake manifold (injected into throttle control body over 15 minutes) and the check engine light finally went out. Still had one issue, engine would not have any power if cold. Oct 22, 2020 · Things to consider before starting. There are some things that you have to consider before trying to clean your catalytic converter. In a lot of cases, the parts inside the catalytic converter will become loose, and if this is the case, you can’t repair your catalytic converter without removing and replacing it. Ive got a 2008 Silverado 1500 with the 6.0l and ive been getting the P1175 code here lately. I also get a cylinder #8 misfire every once and while as well. Already replaced the #8 coil. Any ideas as to what might be wrong. The truck is running fine from what I can tell. I did both (2) mini cat cel fix & (3) CRC cat cleaner, the CEL (P0420, P0421, P0430, P0431) never come back and passed inspection in flying color. MAF sensor dirty causing wrong cold engine idle air/gas ratio may be the origin of problem, so cleaning it is a bonus. or as prevention. Jul 13, 2017 · Upon combustion, air and fuel can generate upward of 700 psi in gasoline engines and upward of 2,000 psi in diesel engines. In order to keep that pressure in the combustion chamber, the head gasket needs to be robust and installed properly. Jan 13, 2020 · They put in two different computers, still had check engine light problem. They gave up. Three years later, wife had been driving in city only, I used Seafoam to clean intake manifold (injected into throttle control body over 15 minutes) and the check engine light finally went out. Still had one issue, engine would not have any power if cold. The catalytic converter was one of the first measures toward emission control on vehicles back in the 1970s. Converters have an internal temperature of around 800 ºF, with a honeycomb structure of iridium, rhodium, palladium and other semi-precious metals. May 24, 2017 · Personally I think you are going to need to "Manage" the P0420/P0430 codes and the Readiness Monitors between now and the SMOG test. The P0174 is a bit of a wild card at this point, the P0430 was triggered first so there is no way to determine without gather Logs under what conditions the P0174 code is popping up.
Nov 18, 2015 · We recommend Torque Pro. What Does Code P0346 Mean? A properly running engine is essentially the precise timing of gasoline-fueled explosions. Depending on engine speed (RPM) and load the engine control unit (ECU) controls the timing and amount of fuel injection, timing of spark ignition, and in the case of engines with variable valve timing (VVT), intake- and exhaust-valve timing adjustments. Go and get a can of Seafoam from Walmart or any Auto Parts store. I had an issue with my sensors, too. My stepdad is an airplane and car mechanic, and said the gas formulations in the US have changed, causing sensors to get mucked up. Pour the Seafoam into the gas tank (works faster if tank isn’t full) and the problem is solved! This works!!!
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Page 1 of 3: How to Test the Ford MAF Sensor (4.2L, 4.6L, 5.4L). Common Symptoms of a BAD Ford MAF Sensor. Is My Ford MAF Sensor Just Dirty?. Air Leaks Can Provoke MAF Codes and Problems. P0420 & P0430 You need new catalytic converter The P0430 check engine light code, like P0420, means the catalyst system efficiency is below the required threshold. Simply put, this means your car is adding more pollution into the air than it's supposed to. Have anybody got this code before P0430 - Catalyst System Efficiency Below Threshold (Bank 2) ? I'm sure it has something to do with my O2 sensor.Apr 09, 2011 · The check engine light came on and when I had the code checked, it said P0430. The technician said that the catalytic converter was clogging up (more than likely as a result of using discount gas), that it was a minor code and that the car was still driveable. He recommended this product called SeaFoam to prevent future buildup (it can't get rid of what's already there) and to use premium gas ... XJ XJ6 / XJR6 ( X300 ) - Jaguar XJ6 and XJR6 (1995 - 1997) discussion, how-to guides, and technical help. When to Replace or Rebuild your BMW VANOS System. This guide brought to you by BMW N54 Tuners will explain what the VANOS system is, the importance of the technology, and most importantly when and why it should be replaced or rebuilt.