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Discussion Starter #1 (Edited)
Hi,

I recently got a P0420 code from my 97 Camry LE (has about 130k on the clock). I had replaced the cat about 2 years ago, and since then I have put less then 1000 miles on it. My car is a CA emissions one but I'm driving it in NJ so I figured I wouldn't need the extra expense of the CA cat and it needed to pass emissions so I relaced the cat with a non-CA one...

I think the timing belt is on its last legs as for about 6 months now I can hear it slapping around, but I figured as the engine is non-interference, then when it breaks it shouldnt do too much damage.

I took the car out yesterday for the first time since the P0420 (cat efficiency) code triggered, and on the way back from the store, the Engine light began flashing. I had my OBD in the car & hooked it up and it had given me 2 misfire readings & was running rough. By the time I made it home (5 miles away), the car was shuddering at traffic lights on the point of stalling. It also lost a lot of power when driving.

Could a 2-year old cat be the cause of the problem or is it likely to be the timing belt and/or plugs wires?

Any help would be greatly appreciated!

Thanks!!!
 

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Registered
98' Camry
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428 Posts
i dont believe the cat would cause anything like this, i could be wrong though. id check the timing belt take the cover off and see how the belt looks and same with plugs check them.
 

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O-Dark-30
93 Camry Le
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409 Posts
hmm

If your timing belt has been slapping around and now you car runs like sh**, it is a good bet that you jumped a tooth and are now out of time.
 
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