2001 AE getting 12-16 mpg

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05-21-2013, 06:01 PM

#41

TunerMaxima3000

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That's messed up. I'd be putting a fuel pressure gauge on that sukka

05-22-2013, 05:31 AM

#42

bennuss

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Anyone have a part number on the bosch o2 sensor? They seem to have different kind of connectors.

05-22-2013, 08:00 AM

#43

Gemner

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depends on what you plan to do. The universal will have 2 part numbers (primary and secondary) while the OEM connector type will have 4 different part numbers depending on which one youre replacing. I would suggest looking on rockauto, they usually make it pretty clear on there which one it is

05-22-2013, 08:05 AM

#44

zach90z

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Are your fuel lines ok? Not rotted out. On my 95 maxima my breaks went and ate away at my fuel line and I was getting like 16mpg.

05-23-2013, 05:50 AM

#45

bennuss

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Anyone see anything here that seems to be off?

05-23-2013, 07:30 AM

#46

TunerMaxima3000

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what program is that? Looks nice! I want it!

All of the values I see there look fine.

05-23-2013, 08:08 PM

#47

bennuss

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Quote:

Originally Posted by TunerMaxima3000

what program is that? Looks nice! I want it!

All of the values I see there look fine.

http://www.palmerperformance.com/pro...scan/index.php

Should i assume that based on those numbers my o2 sensors are fine? Anything indicating a vacuum leak?

05-25-2013, 09:38 PM

#48

bennuss

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Any more ideas and I still cant figure out the o2 part #. Should I bother with changing them?

05-27-2013, 06:38 AM

#49

bennuss

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Found this article while trying to understand my data. Thought I would post it since it is very helpful.
http://www.motor.com/article.asp?article_ID=889

05-27-2013, 04:11 PM

#50

Gemner

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Quote:

Originally Posted by bennuss

Should i assume that based on those numbers my o2 sensors are fine?

no, often when O2 sensors go bad the data looks good unless you compare it to a new or calibrated sensor

05-27-2013, 07:32 PM

#51

TunerMaxima3000

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Quote:

Originally Posted by Gemner

no, often when O2 sensors go bad the data looks good unless you compare it to a new or calibrated sensor

This. And it might read really sporatic, a screenshot wont tell us that.

The air fuel might be off, but the sensors aren't reading it accurately, so they think it's fine even though it's not.

I'm not saying this is why your fuel economy sucks, I'm just saying that there's not really any Precise way to check the O2 sensors other than against a known good one like Gemner said.

05-28-2013, 07:45 AM

#52

bennuss

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ok so i will get new primary ones . Anybody can help with the part numbers for the universal ones and the # for the correct connector. They are cheaper than the oem replacement and money is tight presently. Rockauto does a good job for the oem replacement but i cant figure out the universals