[Bigdrumma22]

Originally Posted by psiperformance

Thats not a lean code its a slow 02 response bank 2 front 02 code .. its a generic obd2 code .. OBD-II Trouble Code: P0153 Oxygen Sensor Circuit Slow Response (Bank2, Sensor1)

Lethal may want to try to sell you you need to have it retuned or your tune looked at but slow 02 response is not a tune issue its a sensor issue.

That code means that the 02 on the right bank in the front is reacting slowly to changes made by the ecu to the air fuel mixture during the ecus o2 sensor test cycle.

you need to replace the bank 2 front 02 sensor and inspect the wires to it to make sure they are in good condition.

if you ever want to look up obd2 codes just go to OBD-II Trouble Codes - OBD-II DTC Trouble Codes Repair Help Site

And the p1000 is normal for any ford vehicle with a custom tune if you have the rear 02s turned off wich we did for you because of your busted cats however it doesnt cause a check engine light its the other code that is lighting your cel.

That code is simply telling you that the obd-2 self test on the rear 02s did not complete nothing more. < because we turned them off >

Your cats are also dying.. i told you that when you were on the dyno.

Remember the roten egg smell for the first few few pulls on the dyno ?


Remember it was 18-1 at cruise when it came in its around 14.5 now wich is right where you should be.

Yeah, I know what the codes were, just not so sure on the cause, but I'm guessing the o2's might be shot. They were brand new installed at ANR when they installed the headers. I also don't think it needs a retune because it drove great and still drives fine. So did running it lean those few weeks cause the sensor to go bad along with the cats? I do remember the smell and you mentioning it, but I didn't think cats could go bad in just 3 weeks.