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Hello all,

I have an '03 GTS Eclipse. 184,000 miles. Automatic.
A week ago my engine light popped on with P0171 and P0174. So i replaced some vacuum lines and tightened the intake and the codes stayed away for about 800 miles (I took the car on a trip to New Orleans).

The light popped back on about 200 miles before home. Drove it home since I had no other choice and then checked the codes. Now it's popping

P0154 Oxygen sensor 1 bank 2 no activity

and P0421 Warmup catalyst below threshold bank 1


I'm troubled as too what's really going on with the car here.
Any ideas?

Thanks as always
 

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Check to make sure the oxy sensor's wires didnt melt into the exhaust (or connector not connected). Either that or the car misses New Orleans and didn't want to go home. :D
 
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