Have an 2001 Eclipse with headers and no Cat Converters. Looking for advice on how to get in Inspected in upstate NY. Bought the car in it's current condition. EGR and Catalyst monitors won't clear inspite of driving the car a hundred miles or so. Check engine light does not come on. Is it...

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...