Engine management light on
2004 Citroen C3 1.4 hdi 16 valve

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John34
Driver
2 points

Problem added: Jun 3, 2014 (7 years ago)
I have a fault on my c3 hdi the fault codes says air flow signal low iv changed the air flow mass and it is still the same then I was told it could be the ecu so I changed that but I still have the same problem and iv changed the fuel filter and air filter can anyone help me

Car details
Car: Citroen C3
Variant: 1.4 hdi 16 valve
Model Year: 2004
Category: Electrics, ECU, Warnings & Lights
Replies and Fixes
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tony811976
Top Fixer
366 points

Jun 3, 2014 (7 years ago)
Are you sure the AFM you changed was working? Even new ones especially cheap eBay ones won't work from new. Otherwise its a case of checking the wires for breaks, but I think it wouldn't be a low signal it would be an open circuit,
So I'd say try another AFM if that's what the code relates to
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John34
Driver
2 points

Jun 4, 2014 (7 years ago)
The air flow mass I put on was from a citreon dealer
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tony811976
Top Fixer
366 points

Jun 6, 2014 (7 years ago)
It could still be faulty, only way would be to fit it on a working car and swap them over, or take it back to Citroen and tell them your car is telling them its faulty and try and get them to fit it to a car they have and see if it works,

How about visiting a local scrappy and explaining your issue. I know one local to me let me try the part on the car as long as I didn't leave the premises.

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paulieone
Legend
1,786 points

Jun 21, 2014 (6 years ago)
it could be a sticky egr valve

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