Toyota Camry 2002 P0420

My car was running good i went to good year for fuel injector because its cost me 4000 they did three step injecting work and spark plug change also air filter my gas tank was less then half tank after all work done. Engine performance problem 2002 toyota camry 4 cylinder two wheel drive automatic 94000 miles.

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The other day the check engine lot came on.

Toyota camry 2002 p0420. Fix toyota camry 2000 check engine light code p0420 catalyst system efficiency below threshold. In the camry obdii p0420 is often caused by a bad oxygen sensor but there can be other causes as well. 2002 toyota camry 24 p0420 how do i tell which cat is bad.

There is service bulletin eg024 04 which replaces the exhaust manifold cat converter and flashes the computer. My 2002 toyota camry 24 litre. 2002 toyota camry if you have a 2002 camry with a p0420 go see the dealer.

I have a p0420 catalist efficiency below threshold. 2002 toyota camry if you have a 2002 camry with a p0420 go see the dealer. P0420 toyota meaning the engine control module monitors the switching frequency ratio of heated oxygen sensors 1 front o2 sensor and heated oxygen sensors 2 rear o2 sensora three way catalyst converter manifold with high oxygen storage capacity will indicate a low switching frequency of heated oxygen sensor 2.

Post by toyocam02 tue mar 17 2009 321 pm. It covers toyota camry p0420 meaning symptoms causes and possible solutions. P0420 toyota description the engine control module monitors the switching frequency ratio of heated oxygen sensors 1 front o2 sensor and heated oxygen sensors 2 rear o2 sensora three way catalyst converter manifold with high oxygen storage capacity will indicate a low switching frequency of heated oxygen sensor 2.

I have a 2002 toyota camry se with 59162 miles it has the 30 v6 and auto tranny. Warranteed up to 80000 miles and 96 months. Warranteed up to 80000 miles and 96 months.

My problem is that the code reader dosent tell me which cat. I took it to the napa store and they read the code as p0420 catalyst system efficiency below threshold bank 1. One of the most common trouble codes with all toyota vehicles is the p0420.

From what im reading here looks like i have a cat gone bad. Good gas mileage as always not the upstream o2 sensor. There is service bulletin eg024 04 which replaces the exhaust manifold cat converter and flashes the computer.