MWIS350

PO172, PO175 system too rich.

MWIS350

PO175 Bank 2 System too rich.

Gville350

iTrader: (10)

You have an intake or exhaust don't you? Those codes are more prone to popping up with these mods. Hell, I've even seen them here and there. I just reset them and continue on. I've seen no change in fuel mileage or performance.

MWIS350

I have AFe intake stage 2 and Tanabe exhaust. I reset twice. Put in new MAF Sensor because of 1 year warranty.

I don't want to ignore because car run rough and lack of performance. Slow hesitate accelerations.

MWIS350

Just order O2 sensor will install tomorrow. I hope it will help. Exhaust also smell very bad because of too rich.

srt1

Is it the a/f ratio sensor. Meaning before cat or after? 02 sensors are after the cat and a/f sensors are before cat.
If it's an a/f sensor call me and I can give u details on how to attack it. I did mine months ago and still haven't posted a DIY but one day I'll do that or a video. It took me hours each side and now I know why they charge so much.

Gerb

Did you get a Vsc light and also, I feel like im running rich as well. I feel it affects performance. Did u reset battery again to fix it?

srt1

They need to be replaced

srt1

This is what a bad a/f ratio sensor looks like

MWIS350

The one by the battery. I have seen some YouTube vdo. Does your car seem to run better, power after new a/f sensor? There are 4 O2 sensor 2 before cat and 2 after cat.

MWIS350

I got code for bad MAF sensor, bank 1 and 2 system too rich. I reset battery twice but check engine come back day later. Both front sensor are same part #. Got my at Oreilly Auto part $179 each. Will be cheaper at Amazone.com

srt1

[QUOTE=MWIS350;9104909]The one by the battery. I have seen some YouTube vdo. Does your car seem to run better, power after new a/f sensor? There are 4 O2 sensor 2 before cat and 2 after

Funny cause it wasn't sluggish when the codes popped up. But it should run more efficiently once replaced.

srt1

If you change out the pass side, your batt will need to be taken out in doing so will reset once you reinstall it.

MWIS350

Does the driver side and passenger had the same A/F ratio sensor?

MWIS350

My IS350 Christmas light. lol