CEL P24D600 and P24D800
12-11-2023, 08:20 AM
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CEL P24D600 and P24D800
Hello everyone,
I've got a 2018 S4 B9 and the car was amazing for the time I owned it. Few days ago I was hit with a CEL and OBD II showed P24D600 and P24D800 (evap system) faults together at the same time. I drove to the gas station, filled around 1/5 of the tank (to get by for the weekend) and after an hour of idling and few miles driven combined, I made a quick stop and when getting back in the car I was hit by the majestic yellow eyesore. The car has around 60k miles and never gave me any troubles before. Has anyone experienced any of these? Clearing the codes with OBD 11 is a strange experience as either the P24D600 or P24D800 goes away but the other stays on and the CEL goes away until I restart the engine and both faults and CEL come right back. Car runs smooth as always, no RPM fluctuations or rough idles, fuel economy was not impacted either. I know this is not a cirtical issue but having the CEL on is annoying and feels wrong. Has anyone dealt with this before? Reaserch says it might be the G950 sensor or a leaking hose but I wanted to consult before disassembling the evap system. It's not under warranty as it has 60k miles and it's a USA import (auction bought, rebuil), currently enjoying the snowy and salty roads of Europe. Any help is appreciated
I've got a 2018 S4 B9 and the car was amazing for the time I owned it. Few days ago I was hit with a CEL and OBD II showed P24D600 and P24D800 (evap system) faults together at the same time. I drove to the gas station, filled around 1/5 of the tank (to get by for the weekend) and after an hour of idling and few miles driven combined, I made a quick stop and when getting back in the car I was hit by the majestic yellow eyesore. The car has around 60k miles and never gave me any troubles before. Has anyone experienced any of these? Clearing the codes with OBD 11 is a strange experience as either the P24D600 or P24D800 goes away but the other stays on and the CEL goes away until I restart the engine and both faults and CEL come right back. Car runs smooth as always, no RPM fluctuations or rough idles, fuel economy was not impacted either. I know this is not a cirtical issue but having the CEL on is annoying and feels wrong. Has anyone dealt with this before? Reaserch says it might be the G950 sensor or a leaking hose but I wanted to consult before disassembling the evap system. It's not under warranty as it has 60k miles and it's a USA import (auction bought, rebuil), currently enjoying the snowy and salty roads of Europe. Any help is appreciated
01-25-2024, 10:58 AM
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I got similar codes... My mechanic (former Audi Tech) told me it's a common fault with our cars, around that mileage. (I'm at 62K) and he's replacing the N80 valve (Pierburg solenoid valve?) and the emissions check valve. He told me he's seen this quite a bit on B9's and to replace both at the same time. Parts were $90...
01-26-2024, 07:07 AM
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I got similar codes... My mechanic (former Audi Tech) told me it's a common fault with our cars, around that mileage. (I'm at 62K) and he's replacing the N80 valve (Pierburg solenoid valve?) and the emissions check valve. He told me he's seen this quite a bit on B9's and to replace both at the same time. Parts were $90...
01-26-2024, 07:45 AM
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That's the one that I'm getting replaced today. I think it's #10 on the evap diagram. he's also replacing the check valve because they typically go at the same time. Thanks for the response!
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