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A lot of evap codes suddenly appeared

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Old Feb 16, 2026 | 10:56 AM
  #1  
DiscoOslo's Avatar
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From: Oslo, Norge
Default A lot of evap codes suddenly appeared

I was driving up a mountain and there was a 0.5 second loss of power, then everything back to normal. My ultra gauge was displaying error for fuel economy stats after that and there were a ton of pending trouble codes. Seemingly it drives fine, but I'm 200 miles from home so I'm wondering what I can do. I have a MAF with me and one of the codes is p0102, so I can try swapping that out, but the rest... ??? Any advice is appreciated.
I had an existing p0341 and an only when I let it idle for more than 10 minutes p0441.
All the codes:
P0441
P0414
P0445
P0102
P0340
P0135
P0155
P0141
P0161
 
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Old Feb 16, 2026 | 01:25 PM
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acg
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Is your Fuse 2 in the engine bay fuse box blown?
 
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Old Feb 16, 2026 | 01:37 PM
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Originally Posted by acg
Is your Fuse 2 in the engine bay fuse box blown?
Interesting question. I'm not sure. I'll check in the morning. It definitely seems electrical. The UG shows no signal from the maf for example. The o2 sensors have good data, but the code for them is for the heater, and the CPS is also on that harness side. Doing a little reading people noted some of these errors after redoing head gaskets by accidentally damaging the wires when removing/adding the heads back, which I did 3 months ago. Everything runs fine, as strong as it had been, just codes. I need it to run 4-5 miles a day for the next 4 days then 200 miles home. I'll check the fuse and hope that's it. 🤞
 
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Old Feb 16, 2026 | 01:46 PM
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acg
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I am by no means an expert on this. Just sharing the limited experience.

I was chasing a combo of O2, emissions and evap codes last summer. It kept blowing Fuse 2. It turned out to be a frayed O2 wire causing a short circuit:
https://landroverforums.com/forum/di...update-126552/

Good luck!
 
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Old Feb 16, 2026 | 01:51 PM
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Originally Posted by acg
I am by no means an expert on this. Just sharing the limited experience.

I was chasing a combo of O2, emissions and evap codes last summer. It kept blowing Fuse 2. It turned out to be a frayed O2 wire causing a short circuit:
https://landroverforums.com/forum/di...update-126552/

Good luck!
Wow. That's crazy that little issue caused all of that. Gives me something concrete to look into. Thanks! Of course the only tools I didn't bring are electric related...
 
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Old Feb 16, 2026 | 06:33 PM
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Again, not likely, but a loose petrol cap will throw Evap codes.
 
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Old Feb 17, 2026 | 02:13 AM
  #7  
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Checked this morning and sure enough fuse 2 was blown. Swapped the 15a fuse from the fog lights and everything is back to normal. Obviously I'll have to troubleshoot why, but this should get me through until I'm home. My guess is I've got some wire damage on the harness I can't spot yet.
 
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Old Feb 17, 2026 | 10:09 AM
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It's also possibly just a one time thing. 25 year old fuses will occasionally fail without another problem. If it blows again you probably have an issue that needs correcting.
 
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