 | Home > Technical > Help with my 2.2 Puma |
 
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| macfrank Member Since: 05 Nov 2015 Location: somewhere in the north Posts: 986   
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Welcome
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Have you closely checked the wiring on the back of the MAF connector for chafing? |
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4th Jan 2024 9:26am |
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| Clifford the Big Red Defender Member Since: 30 Sep 2022 Location: Somerset Posts: 9  
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Ahh I was wondering why the photos weren't uploading. Hopefully have added them now.
I haven't looked too closely, although did think it looks a little janky. I'll try and get a photo later, is there something I should look our for? |
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4th Jan 2024 9:54am |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 226 
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The only odd looking pid is the %.. load
If that's the engine load it can't be right next to the other readings.. The ones I can relate to anyway.. I can't remember how freeze frame data of the pid's are selected.. I seem to recall that you select the ones you want to view.. Anyhow.. Things to try would be the map sensor cleaning, as well and try looking at the air cleaner for condition and the intake pipe etc.. |
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4th Jan 2024 12:30pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 1740
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After checking the maf wiring I would look at the hoses from airbox to turbo, turbo to intercooler, intercooler to metal pipe and metal pipe to inlet manifold , this latter one is a small 90degree elbow and prone to getting a hole in it on the 2.2. Check the clamps as well.
The intercooler does split as well at the crimp seams on the side, this can create a whooshing sound you should be able to hear while stationary with window down and revving the engine. Any of these can give your fault code. See this topic as well https://www.defender2.net/forum/topic82435...ntercooler |
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4th Jan 2024 12:34pm |
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| macfrank Member Since: 05 Nov 2015 Location: somewhere in the north Posts: 986
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Found it: https://www.defender2.net/forum/topic74109.html |
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4th Jan 2024 3:39pm |
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| Rosco Member Since: 03 Dec 2010 Location: Burntwood Posts: 1799 
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Just to add my 2p's worth, I've had this fault a few times, twice it was a holed turbo to intercooler pipe where the pipe had rubbed against the steering column UJ, and once was a split intercooler on the plastic end
 Click image to enlarge It was however really awkward to spot with the intercooler still in situ as it is sandwiched between the air and cooling rads 2007 - Stornoway Grey 90 XS SW - Gone 2002 - Black Discovery II - Gone 2014 - Montalcino Red 110 XS SW |
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4th Jan 2024 5:44pm |
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| Clifford the Big Red Defender Member Since: 30 Sep 2022 Location: Somerset Posts: 9
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Thanks guys. Had a read through your various posts and links to other posts.
Seems like it's a fairly common annoying problem. Having checked the connector it seems OK? Hopefully have posted a picture now. I will check for whooshing noises and other sensors at the weekend. Hopefully its an easy fix! Click image to enlarge |
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5th Jan 2024 6:06pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 1740
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On the 2.2 a bracket was fitted to keep the turbo to intercooler hose off the steering column and other protrusions , however it’s still worth checking. With wheels on ground slide under front offside ( driver side) and look up with a torch, you can see if there has been rubbing / a hole and feel for a gap between hose and steering column.
On the nearside from under the vehicle you should be able to see the 90 degree hose elbow to the inlet manifold and potentially feel for a split, however it’s surrounded by lots of hoses and components so not easy to do. The intercooler crimped seams are harder to view as stated above, but easier to do with front grill removed, which is easy to do as it’s only a few screws. Look for black soot and the crimped seam failing as per picture above from Rosco. |
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5th Jan 2024 7:31pm |
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| Clifford the Big Red Defender Member Since: 30 Sep 2022 Location: Somerset Posts: 9
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On a quick look over this weekend, there seems to be a high pitch hissing sound from roughly under the passenger side light cluster. It seems more obvious/louder when under acceleration. I think this has something to do with the turbo or intercooler. Can the MAF sensor error code be this? I will have another route around, I am hoping its as simple as a loose hose not a broken intercooler!
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8th Jan 2024 9:03am |
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| DAZ110 Member Since: 06 Dec 2007 Location: East Sussex Posts: 2003 
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Sounds more like the Intercooler to me.
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8th Jan 2024 10:05am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16858 
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Just what I was thinking, I am sorry to say!
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8th Jan 2024 1:06pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 1740
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Yes that will give you the MAF error code you are getting. Check the nearside hose from the intercooler to the metal pipe to see it is seated correctly on the Intercooler and metal pipe, that clamps are tight and it is not split or holed. Noting I’ve not heard of a split or hole in this hose before. If the hose is ok and clamped correctly and you are sure the hissing sound is coming from near the nearside ( passenger side) light cluster area it will be a a failed intercooler. Likely to be at the crimped seam. If you have aircon the IC is sandwiched between the aircon condenser at the front and the coolant radiator behind it. The good news is it is not that hard to replace. I have done it on my 2.2 and I and others can provide instructions. Regarding a new intercooler I recommend the BAS high flow intercooler, it is well made, perfect fit and will very likely never need replacing. You can fit new silicon hoses at the same time but that will add cost and complexity, and the 90 degree elbow is fiddly, but again I and others have done so and can provide instructions. |
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8th Jan 2024 1:56pm |
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| Clifford the Big Red Defender Member Since: 30 Sep 2022 Location: Somerset Posts: 9
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Oh that's annoying!
On a scale of complete newbie to defenders to hardened engineer how hard is it to replace? Does anyone have any workshop manuals that I could look at? I did remember before I initially replaced the MAF sensor I had this error code. Does that shed any more light on it? or defo confirm its a broken intercooler? Click image to enlarge |
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8th Jan 2024 6:28pm |
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| Rosco Member Since: 03 Dec 2010 Location: Burntwood Posts: 1799
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It’s not a massive job to replace the intercooler, it’s only nuts and bolts, but…
The wings are obviously mounted on the production line after the cooling pack is fitted so you’ve got to fiddle about removing the mounting studs. The intercooler is mounted between the air con and cooling rads. Can be removed without draining them down, but your constrained by their respective hoses The air box is in the way and can be a swine to remove Getting the intercooler hoses back on can be a pig unless you have child like hands But other than that, doodle of a job 
Click image to enlarge Here’s a picture I took whilst I watched my brother swap mine 2007 - Stornoway Grey 90 XS SW - Gone 2002 - Black Discovery II - Gone 2014 - Montalcino Red 110 XS SW |
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8th Jan 2024 11:23pm |
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