AFR readout is too high

Phantom · Post by **Phantom** » Tue Apr 06, 2010 1:05 pm

I have the following specs:

Chassis: '02 Civic
Motor: Stock K20A Type R
Hardware Version: 2.16
Serial Number 07758
Firmware Version: 2.02
KManager Version: 1.4.0.0
ECU: K20A Type R (ITR)
Modifications: AEM Ram air intake, Megan Racing headers, High Flow catalytic converter, DC Sports cat-back exhaust

I wanted to know why KManager's AFR readout says I'm running extremely lean. (27:1 to 33:1) The mechanic who did the work on my car stated that it's because I have an 01-04 RSX Type S O2 sensor when KManager's readouts is trying to read off of an '05+ RSX Type S O2 sensor. Is this correct? And if so, is there something I can do in KManager (a setting in the ini or a patch) to get it to read off of the sensor properly? Or do I need to change the sensor to an '05+? Thanks.

Post by **Spunkster** » Tue Apr 06, 2010 1:13 pm

you cannot use an 05-06 sensor. You must use and 02-04 senor with K-Pro.

Phantom · Post by **Phantom** » Tue Apr 06, 2010 3:11 pm

What can cause the readout to be so high, then? Do I have a bad sensor or something? I'm a little confused about this...

Post by **Spunkster** » Tue Apr 06, 2010 4:33 pm

http://www.hondata.com/forum/viewtopic.php?t=3629

Phantom · Post by **Phantom** » Tue Apr 06, 2010 5:02 pm

Here's all what I've got. I updated the info on my first post as well.

Chassis: '02 Civic
Motor: Stock K20A Type R
Hardware Version: 2.16
Serial Number 07758
Firmware Version: 2.02
KManager Version: 1.4.0.0
ECU: K20A Type R (ITR)
Modifications: AEM Ram air intake, Megan Racing headers, High Flow catalytic converter, DC Sports cat-back exhaust

As for the calibration, I only stuck with the preset PRB ITR calibration, and changed the idle speed to 800rpm, LaunchMaxSpeed to 2, and checked Fix Honda Tip In Bug. I attached the file with the info.

Is there any more information you need?

Post by **Spunkster** » Wed Apr 07, 2010 10:08 am

you have not posted a datalog showing the problem.

Phantom · Post by **Phantom** » Wed Apr 07, 2010 11:11 am

Sorry. Here's one of three datalogs I have. I can't seem to upload the other two because they're 5-5.5mb. Also, I attached two screen captures.

Post by **Spunkster** » Wed Apr 07, 2010 12:35 pm

IT looks like you either have the wrong sensor, a damaged sensor, or there is a wiring problem as it does not appear to be propelry reading the wideband.

What is the part number on the side of yoru ECU?

MarkyMark203 · Post by **MarkyMark203** » Thu Jul 30, 2015 8:03 am

Did you ever figure this out? I am experiencing the same issue with my K24 eg

Hondata

AFR readout is too high

AFR readout is too high

Re: AFR readout is too high