P1150 on a 2001 Highlander (with details)

ThaiM · Mar 5, 2010

I recently failed emissions and got this code:

P1150
A/F Sensor Circuit
Range/Performance
Malfunction

Freeze Frame Data:
Fuel System 1: CL
Fuel System 2: CL-Fault
Calc. Load (%): 47.45
ECT (°C): 28
STFT B1 (%): -10.16
LTFT B1 (%): 3.91
STFT B2 (%): 19.53
LTFT B2 (%): 7.03
Eng RMP: 2613
Veh. Speed: 60 km/h
IAT (°C): 1

Is it safe to say that the Bank 2 Sensor 1 O2 Sensor (near radiator) is the culprit? Can someone link to the exact part I'll need?

Thanks for any information.

TrailDust · Mar 5, 2010

Here's a past thread that may offer a bit of information. Don't know if you had read this previously or not.

lenore · Mar 8, 2010

suggest staying with the denso air/fuel sensor.....

ThaiM · Mar 8, 2010

I ordered a Denso A/F Sensor off eBay from what seems to be a reputable seller. Will see if this will finally clear it up. Such a pain having the engine light pop on and off for all these years. Will keep you guys posted.

P1150 on a 2001 Highlander (with details)

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