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Doodlefish

Member Since: 18 Nov 2021
Location: United Kingdom
Posts: 54

Fault Code P0113

I have a recurring fault code P0113 which began with a split intercooler and appears now to be coincidental with that incident (maybe?)

My original thread is as follows;
https://www.defender2.net/forum/topic81269.html

I have looked at other similar issues from other members and I have noted a couple resolved the same way. "A loose connection on the LH side of the gearbox."

Does anyone know what this refers to or have an alternative theory?

The Defender is a 2013 2.2TDCI and the latest test run (20 mins) with cleared fault codes was successful but on later startup showed amber EML and P0113.

If you need any other information, please ask. Thank you.

4th Jan 2022 10:51am

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

MAF and input air temp in combined unit

Click image to enlarge

Click image to enlarge
you need to check engine wire loom for damage

maf is only powered when ecm is power up by (power relay) that run in tendon main relay that power the ECM

I have looked at other similar issues from other members and I have noted a couple resolved the same way. "A loose connection on the LH side of the gearbox."

The grounds for the ecm are

C1947 ground point engine compartment behind heater control valve

C0556 - C0559 beneath vehicle RH side on the trancfer box

4th Jan 2022 1:27pm

Doodlefish

Member Since: 18 Nov 2021
Location: United Kingdom
Posts: 54

The biggest puzzle for me on this one is that it takes 20 mins of driving or more before the fault registers. If it was electrical, such as a connector or the loom harness, wouldnt it be instant?
Ive been looking at replacement loom harnesses as I have changed pretty much everything else. Not sure of the best supplier for this and costs are all over the place.
Still working on it

5th Jan 2022 9:49am

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

If it was electrical, such as a connector or the loom harness, wouldn't it be instant?

not always heat and cold can have play part in components failing as MAF use heating element and current used as means measuring air flow and also heat in copper conductor's changes residents and current and will also have play in cable insulation braking down

5th Jan 2022 10:13am

Doodlefish

Member Since: 18 Nov 2021
Location: United Kingdom
Posts: 54

Interesting. Once I cleared of the fault codes, I did allow the engine to warm up fully before I took it out to test, which came back without fault. It only produced the code again once I restarted after it had fully cooled down the day after.

5th Jan 2022 10:22am

Doodlefish

Member Since: 18 Nov 2021
Location: United Kingdom
Posts: 54

New MAF Faulty

Turns out the brand new OEM MAF was faulty. A different fault to the original MAF. One was air mass the other air temp. Another new MAF has sorted it.

Thanks for the advice all.

1st Feb 2022 10:49am

jpboost

Member Since: 13 Apr 2021
Location: Gatwick
Posts: 374

2014 Defender 110 Puma 2.2 SW Keswick Green

glad you fixed it.

So infuriating when new parts are faulty.

What you really need in these situations is a local friend with an identical spec car, which you can borrow/swap known working parts from. Obviously this is not an easy thing to find, and even if you do have such a friend, they may not want you to dismantle their car to fault find on yours!

1st Feb 2022 11:11am

Doodlefish

Member Since: 18 Nov 2021
Location: United Kingdom
Posts: 54

Friend?

I would never encourage a friend to own one....they wouldnt be my friend for long

1st Feb 2022 11:14am

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