After replacing wires+plugs+rotor+distributor cap haven't had a check engine light with any codes of miss fires. Thank you. However, now I am pulling two codes P0132, P1457. Aftermarket parts are 2.25 magnaflow exhaust, KN short ram air filter. I believe its a high circuit code showing that things are running rich. What should I replace with this? Is it the O2 sensor? I have had evap problems for the last 2 years.

P1457 I know the first thing to replace is a gas cap and I am on that however I am confused after reading on where to start with the P0132.

P1457-If replacing the cap doesn't fix where to proceed next?

P0132-I belive it is an oxygen sensor, however if this the sensor above the cat/manifold?

Thank you.

 

from the reading I've done on the site, 9 times out of 10 if you're getting a code for an oxygen sensor, it will be the primary one (the one BEFORE the cat). If you don't replace this you will run rich which not only wastes gas, but can also shorten the life of your cat - due to it having to absorb unburned fuel in the exhaust.

I would replace it as well as the gas cap. Once both parts are installed disconnect your negative battery cable for a few minutes (5-10). Reconnect your battery cable and start the car. Don't rev it or anything, just let it idle for about 10 minutes. This allows the computer to learn the new O2 sensor. Once you've let it idle, go for a drive and see if you still get a cell

(and if someone super smart like Ron or MK needs to correct me, please do. I'm simply offering what I would do)