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Discussion Starter · #1 ·
Ok, so I have an 08 Mitsubishi Eclipse SE. 2.4L engine. Well, over the summer I had all 4 O2 sensors replaced, catalytic converter replaced, and engine manifold replaced all because I was getting the code saying there were issues with my O2 sensors. Everything has been great but recently, the light keeps coming back on. It stays on for about 2 days then goes off again. Anyone know why this keeps happening? I can't take it to my mechanic with the light off... Please help! :/
 

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Discussion Starter · #5 ·
So, I went back to my mechanic. The code now reads p0421 which, i think, is another catalytic converter issue... could that be because they put in a kit catalytic converter?
 
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