87 Camry - Catalytic Converter issue

Jun 19, 2007 3 Replies

Hello friends:



My 87 Camry (218K miles) barely cleared CA smog check on second try. My mechanic pointed out that catalytic converter (original) will need to be replaced next time as it is not filtering out emissions well. During next smog check, two years away, it will not pass.



Unfortunately, we found that for this car, catalytic converter is right next to the engine .. which is extremely expensive to change.



- after market converter (Autozone) costs around $650 + tax, and labor will be expensive too (around $300)



Was wondering if there is a way to install a cheaper catalytic converter (autozone has it for $66) which will require cutting exhaust pipe under the car and installing this.



Question for you



- will a solution like this hold ? i.e. leave original converter as is and add a cheaper converter by cutting exhaust pipe and installing it.



If not, unfortunately, it will be time for me to retire the car next year ... which is a shame, as the car runs well otherwise.



Thx for your answers



== Get a second opinion. Could be something else like the EGR valve passage blocked, marginal spark plug wires, etc. Listing actual test results might be helpful. If the car is driven with a poor state of tune over a period of time, then the catalytic converter will wear out more quickly because it is running hotter than normal trying to burn off excess hydrocarbons from an arcing distributor cap for example. This will also cause the oxygen sensor to carbon foul more quickly and cause poor test results.

Yes get a second opinion, does it burn oil, It can be many other things. Did your mechanic tune it up run his own tests with proper equipment.

Before touching the converter the car needs to be tuned up like others suggest, and at 218K miles, the oxygen sensors replaced. The sulfur in fuel degrades the sensors over time. I would recommend best-in-class Bosch sensors (the Bosch "universal" ones work fine too at a lower price). I'd also use NGK Iridium plugs (just picked up some for another car). I managed to turn one marginal converter around with two new high-tech Bosch planar oxygen sensors (upstream and downstream). So do get a second opinion.

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