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tberger06
07-08-2016, 04:43 PM
Anyone have advice on what to do about these codes? I attached video of the cluster lights as well.

KOEO
15 (O) - Read Only Memory test failed (due to Quarterhorse?)
15 (O) - Read Only Memory test failed

long pause here (10 seconds) and then more codes

1 (O) - not sure what this code is??
56 (O) - Mass Air Flow (MAF) sensor out of range (high)
56 (O) - Mass Air Flow (MAF) sensor out of range (high)
<iframe width="560" height="315" src="https://www.youtube.com/embed/YndAnH0w4lo" frameborder="0" allowfullscreen></iframe>

KOER
33 (R) - EGR valve not opening; insufficient flow detected
74 (R) - Brake on/off switch failure
33 (R) - EGR valve not opening; insufficient flow detected
74 (R) - Brake on/off switch failure
<iframe width="560" height="315" src="https://www.youtube.com/embed/4HeqYpFrnlI" frameborder="0" allowfullscreen></iframe>

KMT
07-08-2016, 04:52 PM
Some of those just indicate the tests weren't completed/done correctly (and they could after others), as opposed to fail, unless of course you can swear you tested with a warm engine and did all the response actions? How many times did you run tests?

What's wrong that you checked for codes?

SC codes are here:

http://www.njtacc.com/tech/eec_codes.html

tberger06
07-08-2016, 04:57 PM
The engine was warm and I followed these instructions: http://web.archive.org/web/20050427025844/http://www.35ththunderbirdregistry.org/Tips/EECSelfTest.htm

I ran KOEO once and KOER twice because I didn't give it enough throttle the first time.

There's nothing apparently wrong with how the car is running. I just wanted to check the codes to see what would come up.

EDIT: my signature disappeared for some reason, but this is an 89 XR7 5-speed

KMT
07-08-2016, 05:06 PM
Does your '89 have EGR?

tberger06
07-08-2016, 05:44 PM
Is it the little canister behind the blower on the passenger side? If so, then yes.

KMT
07-08-2016, 06:13 PM
Maybe....see this image - note the round chrome flat double-deck'd can left right up high, at the rear of the pass. side valve cover:
http://www.sccoa.com/forums/attachment.php?attachmentid=37653&stc=1&d=1242243189

Yours might not be chrome, tho ;) - it has a flex pipe that goes down the back and connects to the pass. side exhaust.

tberger06
07-08-2016, 06:47 PM
It looks like a have a different style plastic EGR right there. I didn't see any wires or electronic sensors on it either.
https://c7.staticflickr.com/8/7293/28147172446_3e6682e3c0_z.jpg (https://flic.kr/p/JTgBJE)

EDIT: it honestly looks more like a PCV valve to me

KMT
07-08-2016, 07:19 PM
EGR valves aren't plastic.


65785
This is it:

https://www.amazon.com/Standard-Motor-Products-EGV453-Valve/dp/compatibility-chart/B000C7WYUA?ie=UTF8&*Version*=1&*entries*=0

...might be hard to see all the way in the back - you can tell from underneath, tho, if there is a small tube connected to the exhaust manifold.

tberger06
07-08-2016, 07:48 PM
Ah, ok that is what I originally thought was the EGR...my previous picture is of the PCV valve in front of it.

https://c1.staticflickr.com/8/7466/28077960952_a186cdee17_z.jpg (https://flic.kr/p/JM9Tz3)https://c6.staticflickr.com/8/7303/27566576413_ee9f83cc46_z.jpg (https://flic.kr/p/HZXULe)

I do have an EGR. The flexible line out the top of the EGR goes over to a solenoid on the passenger firewall. The bigger metal line coming from the exhaust into the bottom of the EGR has a small nipple sticking out the side pointing horizontal towards the drivers side but there is not a line attached to it. There is a metal line going up into the back of the air inlet plenum and I assume that is attached to the EGR somehow but I couldn't see where the other end goes.

KMT
07-08-2016, 07:59 PM
Looks like it to me too.

Not sure how best to check further. It might be working ok, and the chip is throwing that code regardless. Any idea what your tune does about it?

TBirdJKC
07-08-2016, 10:53 PM
It may be worth pulling off and making sure it isn't blocked up with carbon. I've had a few older ford's throw a "insufficient EGR flow" code and that was the culprit. I used a metal coat hangar and throttle body cleaner to clean up the metal tube while still on the manifold. I'm always a little leary of trying to remove the tube from the manifold here in the rust belt.

tberger06
07-09-2016, 12:20 PM
Right now the only thing I can find in my datalogs relating to the EGR is EVP (EGR Valve Position). It stays at a constant value of 1.54 throughout all my datalogs. I'm too new to tuning to really know what I'm doing, but I might try cleaning out the EGR since I'll be adding a few performance parts soon.

My intent behind pulling the codes was to ensure there's nothing I need to address before installing new parts. A semi-functioning or non-functioning EGR sounds like it shouldn't really affect performance anyways.

KMT
07-09-2016, 12:48 PM
My intent behind pulling the codes was to ensure there's nothing I need to address before installing new parts. A semi-functioning or non-functioning EGR sounds like it shouldn't really affect performance anyways.

Good plan on checking code status now.

I don't know the smog rules where you are, but it might help pass if you could confirm it's working, etc.

Good luck w/your mods.

Ken

tberger06
07-16-2016, 03:10 PM
Just thought I'd give an update.

I installed all my upgrades, turned off the EGR via Binary Editor, and now I don't have any codes to be concerned about :)