O2's reading .02-.03 at WOT... HELP!!
 

Okay I'm trying to help a friend out with his car and things aren't going to well.


He had the Weiand intake installed a while ago. And went to the track only to find out that he lost a whole second on his 1/4 time. So we hooked up ATAP and here's what we found out

Here's a couple AutoTap files for you to check out
http://coloradof-body.com/2k2camaross2/Mikerun1.xls
http://coloradof-body.com/2k2camaross2/Mikerun2.xls

As you can see his O2's read .02-.03 at WOT, when they should be around .8xx-.9xx

We checked the MAP sensor to make sure that was functioning properly. Other than the O2's being compelty wierd, the only thing I notice is that his MAF flow numbers were on the low side. I reach 29 when at redline while he barley reached 19.

What could be causing this? :confused:

Re: O2's reading .02-.03 at WOT... HELP!!
 

I have not studied your files but are you sure the intake is leaking?

Re: O2's reading .02-.03 at WOT... HELP!!
 

The shop that installed the intake has already taken a look at the whole intake two times and verified everything is fine with the work they performed

Re: O2's reading .02-.03 at WOT... HELP!!
 

Are you sure they remembered to put gaskets on the intake??? I agree with the hughjass intake leak theory also....

The engine's definitely getting air someplace besides thru the MAF as you noticed...

Next time, scan fewer parameters also, so it updates more than once every 500 RPM ;)

Re: O2's reading .02-.03 at WOT... HELP!!
 

Your Ltrims are very negative, indicating a rich condition.
They are locking at 0. Your 02s read like a leak but that doesn't show up in the trims. Have all the connections been checked? Was any other work done that required going near the 02 sensors?

Re: O2's reading .02-.03 at WOT... HELP!!
 

all connections have been checked, and there wasn't anyother work done at all, besides installing the intake

Re: O2's reading .02-.03 at WOT... HELP!!
 

is there anyway that ATAP could be reading 1.02 and just displaying .02????