Hey guys,

Maybe one of yall can help me. My 97 F150 is setting 2 codes.

P1151 Lack Of HO2S21 Switches - Sensor Indicates Lean
P0153 O2 Circuit Slow Response (Bank 2, Sensor 1)

Any ideas on what to check first? I had the injectors cleaned and this is the result.

Kris

 

vloney can probably help you out with that. He should be around shortly.

 

looks to me its the same sensor. If I was to say, the sensor was contaminated, and needs replaced.

 

On the 97 it has 3 O2 sensors, two upstreem and one downstream. Does "(Bank 2, Sensor 1)" give any indication which one it might be?

 

bank 2 is on driver side, sensor 1 is upstream, or closer to the motor.

 

Thanks - I really appreciate it.

 

any time, only too glad to help!

 

Anyone know where I might be able to find a EGD tube for a 97 F150 4.6L that goes from the exhaust manifold to the egr valve?

 

Ahh, that can also make that lean code. If you cant find one in a salvage yard, dealer visit is necessary.