Datalogger

[supranicedsmcoo]

My datalogger isnt showing my o2 sensor, my car is having a major hesitation around 3500+rpms... Could this be a problem with the o2 sensor, or is this just something other than the o2 sensor? I changed plugs, wires, coilpack. No mods are done to the car, completely stock.

 

[hornetracer8]

Is your car running rich ie do you have black smoke, plugs coverd in soot or can you smell fuel.

 

[supranicedsmcoo]

It runs rich, but only when i get to a higher rpm, and it does have some black smoke, but no plug problems. I just dont see why its not reading a o2 sensor at all...

 

[hornetracer8]

http://www.vfaq.com/index-main.html
You can check voltage at you ecm pin #4.
Also check it at the o2 sensor its self.
Or you could just put in a known good o2 sensor and see if that helps.

 

[supranicedsmcoo]

Would it cause the whole care to hesitate and not to accelerate hardly at all past 3500

 

[hornetracer8]

If your 02 was bad it could. It should throw a check engine light.

 

[supranicedsmcoo]

No check engine light, but it isnt reading an o2 sensor on my logger, all i want to know is could it cause it to do what it is?