Thread: Puma 2.2 P2263 code

Originally Posted by travelrover

Hi all

Does anyone have any experience with successfully resolving a P2263 code on a 2.2 Defender? Ours is a 2012 90.

This first appeared about 3 years ago out of the blue while the wife was driving 20kms to work on slow country roads a mix of gravel and sealed. It has since puzzled the independent we use. They consulted another LR specialist who was not able to provide any useful info.

So far they have changed the intercooler, turbo, all associated hoses, MAF & MAF sensor, checked all the wiring but we are still getting the check engine light coming and going into limp mode.

There don’t appear to be any common factors. Cold start or warm engine, driving at 80kph or 20kph hot day cold day, cruising or accelerating.

This happened most recently last week while traveling to the airport (SYD) and only 2km from home so still on country roads and not one of the multiple motorways we need to take. I cleared the codes with a cheap Bluetooth/wifi ODB scanner that is now permanently carried in the vehicle. Then yesterday we left the parking facility we use near the airport and again after only about 2km (100 meters from the M8 tunnel) it happened again but we managed to pull up and clear the code. Got home without further drama but an anxious trip all the same.

Does anyone have similar experience and suggestions to fix? It’s driving us nuts and makes trips on motorways a very anxious event and we actively avoid them if we can! Fortunately most of our driving is 80kph or less on country roads.

Here is the trouble code data.

1P2263Turbocharger/Supercharger Boost System Performance
Engine state when the fault(s) appeared
Freeze frame trouble code P2263
Calculated load value 63.1 %
Coolant Temperature 40 °C
Intake Manifold Pressure 1.70 bar
Engine Speed - RPM 2020.75 rpm
Vehicle Speed 69 km/h
Intake air temperature 19 °C
Maf air flow 65.60 g/s
Absolute Throttle sensor position 94.1 %
Time since engine start 228 seconds
Fuel rail pressure 1080.2 bar
Barometric pressure 1.01 bar
Accelerator pedal position D 85.1 %

Cheers - Simon

Do you know if the manifold pressure reported is absolute, or the amount over ambient?

What app are you using?

Could you post a log from a trip?

Originally Posted by shack

Do you know if the manifold pressure reported is absolute, or the amount over ambient?

What app are you using?

Could you post a log from a trip?

Hi Shack

I have no idea of the manifold pressure. I have a cheap ($20 off eBay dongle) and am using EODB-Facile app, the plus edition. Essentially just to get us going on the side of the road.

I do have an Autophix 7310 which is apparently specifically for LR Jag vehicles but have not used that yet. I read the manual some time ago it certainly has a lot more features than the dongle so perhaps that can interrogate the ECU for the data you mentioned.
Does the ECU retain that stuff indefinitely?

No, the ECU will only retain fault codes.

I know nothing of the app you are using, would you be interested to try something else that I can help you to do some logging with?

A log will help in finding the issue.

Puma 2.4 - I run a scangauge from the OBD2 port and the manifold pressure displays in absolute (it shows +/-32psi as the max). 1.7 bar is about 23.8 psi. on the 2.4 Puma, "boost" over about 21.5/22 psi causes the ECU to defuel. I had a faulty turbo and it would defuel like hitting a rev limiter every time i was under full load and accelerating (ie on ramp to a hwy). It didn't throw a code. I didn't work out it was the turbo until the turbo **** itself half way up the Macquarie Pass (much to the displeasure of every car behind me on a single lane road that is cut into a cliff). New turbo and the problem went away.

Your manifold pressure of 23.8 psi, at 2000 rpm and 94% TPS is incongruent. You are accelerating near the end of TPS range in the meat of the torque band (1900 - 2400 rpm) but only running 10 pound boost. considering you have replaced most of the high pressure side of the intake, it might be ancillary to the high pressure system (ie the EGR piping joins the system near the intake manifold and has a few joints in that system that could leak boost or the manifold gasket is shot leaking boost). If your manifold pressure is "boost" and not absolute, i would expect a defeulling like i experienced. Boost control on the Puma done by the ECU and managed by the electronic wastegate on the side of the turbo. For ****s and giggles, spray the actuator rod with a lubricant. It might be a sticky actuator rod. that me tapped out.

Originally Posted by MLD

Puma 2.4 - I run a scangauge from the OBD2 port and the manifold pressure displays in absolute (it shows +/-32psi as the max). 1.7 bar is about 23.8 psi. on the 2.4 Puma, "boost" over about 21.5/22 psi causes the ECU to defuel. I had a faulty turbo and it would defuel like hitting a rev limiter every time i was under full load and accelerating (ie on ramp to a hwy). It didn't throw a code. I didn't work out it was the turbo until the turbo **** itself half way up the Macquarie Pass (much to the displeasure of every car behind me on a single lane road that is cut into a cliff). New turbo and the problem went away.

Your manifold pressure of 23.8 psi, at 2000 rpm and 94% TPS is incongruent. You are accelerating near the end of TPS range in the meat of the torque band (1900 - 2400 rpm) but only running 10 pound boost. considering you have replaced most of the high pressure side of the intake, it might be ancillary to the high pressure system (ie the EGR piping joins the system near the intake manifold and has a few joints in that system that could leak boost or the manifold gasket is shot leaking boost). If your manifold pressure is "boost" and not absolute, i would expect a defeulling like i experienced. Boost control on the Puma done by the ECU and managed by the electronic wastegate on the side of the turbo. For ****s and giggles, spray the actuator rod with a lubricant. It might be a sticky actuator rod. that me tapped out.

Thanks MLD

Some good food for thought there. I will try and do some further investigation and see if I can pull out the data. I need to reread a lot of stuff so I have some idea what I’m doing!

Thanks again!

and of course the OP didnt pay the mechanic for shooting the parts canon at it right? .... I am right aren't I?
it goes: diagnostics, mechanic says to customer in their professional opinion they believe this is the issue, they replace or repair said issue, issue resolved, customer pays bill.

and when its not fixed, the customer doesnt pay...

----
anyway bluh bluh....

P2263 is a somewhat generic code on a Defender TDCi (2007 - 2016, puma).

1 - turbo modulator plug, the wires break by the plug, the part number for the plug is LR020663 is plug and harness for a 2.4 so the colours are different but its not rocket science to match the wires.
BUT saying that, generally you will get a signal amplitude fault/s with it etc, P132B, P2564, P0101

2 - a blocked CAT, likely the code the OP is getting is P2263-22

I have uploaded 2 videos that pretty well cover the above.
https://youtu.be/pccfgVLNYAI?feature=shared
https://youtu.be/CTJFWav2dnA?feature=shared