Wasn't sure where to put this, but I seem to be having a problem with my A/F ratios and/or guage. The reading will function normally when I start the car, but after I start driving a little bit it goes to this:
Video of how my a/f guage behaves during normal highway/city driving.
Any input? Could this be as simple as a gummed up injector or bad fuel filter? I've checked and re-done the wiring (it's all fine) so I assume the reading is accurate. Any ideas of what could cause this? Thanks for any help
-J
looks like a normal narrow band o2 to me. I don't see what your problem is.
It should do that once it goes into closed loop. From what I understand the computer will sit and do that with the fuel. It measures the difference in time that it takes for the rear O2 sensor to detect the change in comparison to the front sensor to determine if the converter is working properly. So, it looks to me like its working just fine. My 2.2 used to do that, and it still did it with the cat removed and the Caspers O2 sim on it. Floor the car and it'll swing over onto the rich side, and stay there til you let go. It's just one of those weird things.
honestly, those kind of narrow band gauges are JUNK, take out $250 and buy a aem uego, it taps to a 3rd o2 sensor so you know its correct. i know i know but you said $30-60 for this but its not right, its just a light show.
Thats what a narrow band does. You are watching what your computer "sees". It gets a reading from the narrow band O2, and goes to the tables in the ECM and adjusts more or less fuel based on tables in the ECM. So you are seeing the computer constantly adjust above or below that value. Which is why a WB is more expensive b/c it actually reads the A/F. Not sure if I explained that right, its kinda late and I just finished writing my last final.... EVER!!!
PSN ID: Phatchance249
BOOSTED / JMdecals.com! wrote:honestly, those kind of narrow band gauges are JUNK, take out $250 and buy a aem uego, it taps to a 3rd o2 sensor so you know its correct. i know i know but you said $30-60 for this but its not right, its just a light show.
Actually, in this case that would just be stupid. Looks like this car has more appearance mods than anything according to the profile. A wideband would do him absolutely no good since it looks like there's nothing he can really get out of it than being a 250 dollar light show. I'd say since the car is as close to stock as it is the NB is fine, even if all it does is flash around for him it will still at the least show if the O2 sensor is working.
