2003 GTS Spyder with 151,000 miles.
P0154 code been coming up for the last few weeks. That code is for the very top-front O2 sensor right below the TOP radiator hose.
Replaced the O2 sensor two days ago(with the battery unplugged of course), and now I have an P0155 code after driving it for...
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...