Hi @ all,
I am currently rolling a '98 AGU with a stage 1 map. It was running fine with the stock DP and cat, there was this bad smell outside the car only for several minutes after a cold start. I haven't observed any other smell issues.
I have installed a 3" downpipe and decat on my about a week ago and since then have this terrible smell issue.
When I stop at a traffic light with my window down, I could smell these fuel fumes, it feels like an old V6 with very rich A/F ratio. It is the same several feet behind the car and is very embarrassing. It doesn't matter if the engine is cold or at normal operating temps, the fuel smell is present. There is no issue with the windows up and the a/c running, fuel smell is not entering the cabin for some reason.
I am aware that it is common to have a little bit more smell after decat but this is a nightmare.
The whole exhaust was checked for leaks, none were found. Did a VCDS scan, no error codes related to lambda or mixture. Searched several threads but most of them were related to cabin smell issues.
Any ideas?
I am currently rolling a '98 AGU with a stage 1 map. It was running fine with the stock DP and cat, there was this bad smell outside the car only for several minutes after a cold start. I haven't observed any other smell issues.
I have installed a 3" downpipe and decat on my about a week ago and since then have this terrible smell issue.
When I stop at a traffic light with my window down, I could smell these fuel fumes, it feels like an old V6 with very rich A/F ratio. It is the same several feet behind the car and is very embarrassing. It doesn't matter if the engine is cold or at normal operating temps, the fuel smell is present. There is no issue with the windows up and the a/c running, fuel smell is not entering the cabin for some reason.
I am aware that it is common to have a little bit more smell after decat but this is a nightmare.
The whole exhaust was checked for leaks, none were found. Did a VCDS scan, no error codes related to lambda or mixture. Searched several threads but most of them were related to cabin smell issues.
Any ideas?