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-   Series I Engine Tuning Forum (https://www.rx8club.com/series-i-engine-tuning-forum-63/)
-   -   COBB AP CEL masked, force readiness for inspection (https://www.rx8club.com/series-i-engine-tuning-forum-63/cobb-ap-cel-masked-force-readiness-inspection-253541/)

Carbon8 06-19-2014 02:24 PM

So I do not have the right Dongle but it connected anyway :dunno:

Looks like my airpump is failing max cycle time and this i think is holding up the other monitors. All the other monitors are passing the required test but not activating. So I will be putting the air pump back in tonight.

http://imagizer.imageshack.us/v2/640x480q90/840/8gn.png
http://imagizer.imageshack.us/v2/640...0/822/b9bh.png
http://imagizer.imageshack.us/v2/640...0/837/vclk.png
http://imagizer.imageshack.us/v2/640...0/822/fx8q.png

ShellDude 06-19-2014 02:28 PM

Ding ding we have a winner!

ShellDude 06-19-2014 02:35 PM


Originally Posted by RIWWP (Post 4608591)
I believe that the EVAP system isn't checked if the gas tank is full or empty either (<15% or >85%). Most of the EVAP DTCs have that requirement, but I can't find the specific evap monitoring condition requirements for the readiness test yet to know if that same rule applies for the readiness condition.

Also don't lose sight of RIWWP's input. He reminded me that it wasn't until I was at about half a tank that I started getting goodness out of the evap tests -- even with secondary air passing.

Carbon8 06-19-2014 02:38 PM

Then how do some cars pass with flying colors without a pump and the code passed. Perhaps eventually it just stops trying and activates it.

Carbon8 06-19-2014 02:40 PM

Also love how the app connects with the wrong dongle have to love marketing pyramids.

ShellDude 06-19-2014 02:48 PM


Originally Posted by Carbon8 (Post 4608604)
Then how do some cars pass with flying colors without a pump and the code passed. Perhaps eventually it just stops trying and activates it.


There are situations similar to yours (and how mine unfolded) where folks are fine up until the point the air pump is pulled and due to less than perfect memory on our part we make statements like "it always worked before" not realizing that the characteristics of the test changed in between the annual chore.

There's also the possibility that eventually all the other tests pass and since we're allowed one failure folks squeak by. I've never taken the time (like I'm sure is the case for just about everyone else) to be purely scientific about it. It tends be a race to get the stupid thing to pass then that knowledge gets filed away for the next twelve months. The past two years I was happy just to pass and honestly didn't revisit the whole readiness thing again until the following year. Some follow up in that regard would certainly help put this one to rest.

RIWWP 06-19-2014 02:52 PM

For my part, the pump was still installed, just all electrical connectors unplugged because I was catless and the solenoid was failing (screaching) and i didn't want to hear it. I know that I still passed my readiness tests on the Cobb flash (from MM), because I spent most of the time while driving with a Torque up on a tablet, and the readiness monitors was one of the screens I had in the corner of the page. All were "Passed" except after a battery disconnect, and they went to Passed within a reasonable period of time.

TeamRX8 06-19-2014 04:21 PM


Originally Posted by Carbon8 (Post 4608355)
Logan why do you have P2096? Why is this code seem to be popping up a lot lately?

It's popped up a lot over the years, but if you search the forum nobody has ever posted anything about how it was fixed ... since there are so many possibilities (according to the DTC procedure) an answer still may not apply to your particular situation

Carbon8 06-19-2014 04:45 PM

The ECU has no way to monitor that the pump is actually supplying air to the exhaust only that the pump is connected and working. I do not have the hardware anymore to actually conmext it to my exhaust manifold so I was going to just plug it in and let it sit in the bay.

TeamRX8 06-19-2014 04:57 PM

it knows if it's electrically connected or not i.e. can detect an open circuit. This is the issue, not if air is being pumped at all or into engine

search it/the subject in general for yourself ...

logalinipoo 06-19-2014 05:19 PM

I still have my pump since my oil tank is mounted to it. I wonder if a resistor across the connections would fool it into thinking you still have a pump.

ShellDude 06-19-2014 06:25 PM


Originally Posted by Carbon8 (Post 4608637)
The ECU has no way to monitor that the pump is actually supplying air to the exhaust only that the pump is connected and working. I do not have the hardware anymore to actually conmext it to my exhaust manifold so I was going to just plug it in and let it sit in the bay.

You'll be fine... This is what I do. This year I actually just left it wedged in between my omp reservoir and my catch can.

Team is very likely on to something root cause wise. I'll check my test status tonight and let you know as I physically pulled the pump minutes after passing :)

dannobre 06-19-2014 06:36 PM

The Evap monitor is a bit tricky. It is the one that I had the most trouble with...

That being said with no CEL's and only one mode not set a lot of jurisdictions allow a pass

TeamRX8 06-19-2014 06:49 PM

Well you know I don't usually quote anything MM has to post, but he got this one right:

https://www.rx8club.com/series-i-eng...2/#post3585731


My cars pass emissions all the time in many States* in all different states of tune.
All the PCM needs to know is that the sensor is physically present. The readiness flag will be set in a couple of drive cycles and the MIL will be off.

ShellDude 06-19-2014 07:46 PM

Just looked... Everything but secondary air shows as passed as I expected.

My secondary air is similar to yours ... 5.12 with a threshold of 4.992

Keep in mind this is AFTER I had my air pump connected as part of passing emissions in 12/13.

Carbon8 06-20-2014 08:04 AM

Yup, my Evap flipped on last night. I installed my airpump this am and did the drive cycle and still no change. So I still have secondary air and heated oxygen sensor. One of those needs to flip or I am screwed. Also sitting at 110 miles.

Any thoughts on why, even with the pump plugged in your are not seeing readiness?

logalinipoo 06-20-2014 10:39 AM

It takes 2 drive cycles to throw a cel so it will be a min of 2 before it decides its working right.

Carbon8 06-20-2014 11:02 AM

Thats what I figured, will have my second cold start here in 4 hours and see what happens. I am curious why heated O2 is still inactive.

logalinipoo 06-20-2014 12:46 PM

Its probably not going lean on startup like it should be. Since you dont have the air pump installed

Just a random guess.

Carbon8 06-20-2014 01:11 PM

I don't think so, the o2 TID are passing every time. Of note looks like the downstream sensor controls P2096 and 2097 codes.

http://imagizer.imageshack.us/v2/640...0/849/l4hr.png
http://imagizer.imageshack.us/v2/640...0/850/lrp3.png

wcs 06-28-2014 07:26 AM

FWIW my neighbor just went through this whole readiness thing.

It wasn't an RX8 it was a mini van but the point is .... 300 km he had to drive before the ready was set.
Just say'n

Cole33 09-15-2014 09:50 AM

Going through this same issue now. Masked air pump code with AP, put the air pump back in ~500 miles ago. Have heard/felt the air pump pushing air into the engine bay. Also connected the pump to the solonoid. My Secondary Air and Evap still won't ready. I just did an engine rebuild so I'm not sure if the EVAP is gas cap related or something else since it's a complicated system.

Still having issues getting the monitor to ready. I'll try the procedure tonight and see if that works.

Carbon8 09-15-2014 11:46 AM

I had to reinstall my airpump completely, the O2 must read a lean condition from the pump within 5 seconds of turning the car on or that monitor will not become ready.

Also readiness codes fire in order, and the airpump code is the second to last code to activate, meaning it has to be ready for inspection.

Masking the CEL with the Cobb will not work, you actually need the pump.

dannobre 09-15-2014 02:34 PM


Originally Posted by Cole33 (Post 4628632)
Going through this same issue now. Masked air pump code with AP, put the air pump back in ~500 miles ago. Have heard/felt the air pump pushing air into the engine bay. Also connected the pump to the solonoid. My Secondary Air and Evap still won't ready. I just did an engine rebuild so I'm not sure if the EVAP is gas cap related or something else since it's a complicated system.

Still having issues getting the monitor to ready. I'll try the procedure tonight and see if that works.

You would be better off if you have all the parts intact...to unmask the codes in the Cobb so you can see which ones are being set.....fix the issues...and then drive the car until the monitors set

Often if there is no CEL...and some of the monitors are set they will let it pass

Cole33 09-15-2014 05:07 PM

That was my next plan of attack. I'm just getting short on time since it's due by the end of this month so I'm trying to be proactive about it.


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