CourteneyJayne
Region: GB
Monday 05 October 2026 11:04:46 GMT
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bfozza :
right need to know a few things 1 need to know what car it is, 2 petrol or diesel, 3 need to know what the codes are but never listen to halfords they don't even know how to change a bulb properly
2026-10-05 17:43:46
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Chris Bazire :
The code you have commented is for catalytic inefficiency. This just means that the catalyst isn’t working as well as the car wants it to. If the catalyst was actually blocked you would have no power and likely be in limp mode so I would suggest it may just be dirty. Your best course of action would be to get hold of a bottle of cataclean about £17 on Amazon. Put this in with some premium fuel and go for a dual carriageway run at 70 in 4th for 20minutes or so to get the exhaust hot and allow the cleaner to work. You may well find this clears it out enough to meet the efficiency requirements and put the light out. If you don’t have any luck then a cheap code reader may be worth getting so you can check the codes yourself, if the only code you have is for the catalyst then keep driving it. Topdon do a basic handheld one for £20 which would do the trick. Given that the MOT is still in date and you say the car is behaving normally driving it with that code is unlikely to do any harm which would give you time to save for a replacement if needed but I would recommend finding a good local independent to diagnose the issue first.
2026-10-05 17:36:26
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kenboxall :
what car is it and never take a car to Halfords they haven't a clue what they are saying or doing
2026-10-05 16:24:23
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apsobsolete :
Not being funny, but is it a diesel car that you’re driving? And doing small journeys in it
2026-10-05 16:50:24
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David :
you don't say what vehicle, it's usually that it's insufficient so if it was blocked it wouldn't run , have only ever come across one , and the previous guy in a big dealership had changed the engine ,
2026-10-05 16:57:34
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wedde :
I’m assuming it’s a petrol car and if it’s passed its emissions on the mot then there’s a good chance the cats ok. If it’s blocked the car would struggle to drive properly. My guess is an oxygen sensor which you can check using live data.
2026-10-05 16:59:34
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Manic Dad :
Petrol or diesel
2026-10-05 16:57:05
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John Cenna Jr. :
do u know what code it show ?
2026-10-05 13:30:12
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〽️att :
If no symptoms and the car runs fine. Maybe try a fuel cleaner and give it a good run and I’m talking motorway level’s good speed get the cat hot. I’d never trust Halfords to do a repair. Have they tried clearing the code? could have been a dirty sensor that’s flagged up a code. Had it happen before cleared it and it never came back
2026-10-05 11:46:05
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Kevin spencer :
Dpf not the cat
2026-10-05 16:28:59
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bigstew64 :
is your car diesel and Halford shit i would not take my car to them
2026-10-05 17:19:28
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Dubz🌀 :
What make and model coupd just be the sensor bank 1 or bank 2
2026-10-05 15:13:34
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happy man :
never go to Halfords...did they give you the code .is the car diesel
2026-10-05 16:28:48
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gsb303 :
what car is it? and how old? cats dont block unless its a diesel then its the dpf that blocks and the sesor there getting a reading for its the PM sensor ... which doesnt mean it blocked it telling the car that to much particals are getting past the dpf and also in your diagnosis from halford did they give you the mbar presure reading from the pressure sensor if its a diesel what are the reading? prob easier to post the print out of the diagnosis for everyone to read 👌
2026-10-05 16:59:24
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Guyfawks05 :
It could be a lot really could be one of these faulty coil pack maf sensor could be blocked causing the car to run rich or leen could be a crank sensor best thing to do is get a garage to do a full diognostics it should only cost £60 then your no for defiant
2026-10-05 16:23:32
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danielb8093 :
Get the code and the we can find out what it could be
2026-10-05 14:32:55
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Darren :
what car do you have also do you know the code ?
2026-10-05 14:49:05
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Craig :
make and model of the car would help get a better diagnosis
2026-10-05 16:15:56
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Adam :
I’m a mechanic myself. Did you manage to get any paper work from them indicating the fault code etc. could be number of things. Normally if a cat is weak or poor performance you’ll get a eggy smell from the rear
2026-10-05 15:01:52
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davidcollison123 :
petrol or diesel?
2026-10-05 16:06:24
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Craig Beaumont :
Need to get a proper diagnostics done and see if there is any codes stored
2026-10-05 14:44:43
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nickm573 :
Is it a Ford
2026-10-05 14:49:29
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davey :
there is no way a code made them think the cat is blocked. cats dont just block. if it was blocked for whatever reason, it would be blowing gasket seals and youd have really shit performance. I need to know what the codes were, to be able to offer any assistance. the MOT is irrelevant, it only matters what condition the car was in at that time. additionally, you have an emissions test within the mot if there was an issue would have been detected. honestly, go somewhere else. dont trust halfords. if youre in kent I can assist.
2026-10-05 16:45:40
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user5269828102925 :
What was the code?
2026-10-05 16:54:49
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daz :
Do you know if the exhaust has got a leak
2026-10-05 16:56:29
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