02 sensor. Can it cause bad starts? Long cranks?

[Pathofinder]

My car threw a P0134 the other day, and a P0171 along with that today.

Im thinkin my front 02 sensor may be shot, my question is though Ive recently had a hard time starting the car, cranks strong and fast, just doesnt catch and run sometimes for a few seconds.

Would an 02 sensor be at fault for this?

I was going to buy OEM, but the price is much to high for me, is there a suitable replacement for the front passenger 02 sensor on my 01 Pathfinder?

[cs_wrc]

My car threw a P0134 the other day, and a P0171 along with that today.

Im thinkin my front 02 sensor may be shot, my question is though Ive recently had a hard time starting the car, cranks strong and fast, just doesnt catch and run sometimes for a few seconds.

Would an 02 sensor be at fault for this?

I was going to buy OEM, but the price is much to high for me, is there a suitable replacement for the front passenger 02 sensor on my 01 Pathfinder?

I don't think so, o2 sensors don't start giving proper readings until like 600°.
I'm pretty sure the ecu is looking at the coolant temp sensor or intake air temp/baro sensor.

[Pathofinder]

is there a part number or best sensor to buy for the front one that my car is throwing the code for??

P0134 – Oxygen Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
P0171 – System too Lean (Bank 1)

[cs_wrc]

I always preferred NTK for the japanese makes.
http://www.autopartsnetwork.com/shop/Ni ... pingengine

[Pathofinder]

My car is an 01. They seem to be the same sensor and price, but both have different dates that I dont understand. Is it two different sensors they are listing?

Fr:08-01-00
To:06-30-02

[the converted]

That's the date range that they are good for. Double check the manufacture date on the door jamb, my 03 maxima was made in 05/02. Also, check out www.sparkplugs.com for the sensor. They tend to have pretty good pricing.

[Pathofinder]

Code hasnt come back this week, and you guys mentioned the 02's not affecting starts which is the problem Im battling right now