Emissions light after cat delete
Emissions light after cat delete
Need help with orange emissions light on dash which has come on after cutting out rear cats and exhaust work. Local garage (not Audi) deleted light but it came on again. They suggested soldering a resistor between appropriate wires on O2 sensors to fool computer into thinking emissions OK. Anyone tried this? Or any other suggestions welcome.
The Flying Kiwi.
The Flying Kiwi.
'06 RS4 B7
- Dinosroume
- 1st Gear
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Re: Emissions light after cat delete
Just get a stage 2 remap to fool the rear O2 sensors.moondog01 wrote: ↑Thu Aug 29, 2019 3:50 amNeed help with orange emissions light on dash which has come on after cutting out rear cats and exhaust work. Local garage (not Audi) deleted light but it came on again. They suggested soldering a resistor between appropriate wires on O2 sensors to fool computer into thinking emissions OK. Anyone tried this? Or any other suggestions welcome.
The Flying Kiwi.
I'm planning go decat in my rs4 with an H or X pipe and stock rear backboxes and REVO stage 2.
You need to delete the rear lambdas or a software that avoids rear lambdas (stage 2 remap)
Dinos
Re: Emissions light after cat delete
Get 2 lambda bosses that extend the lambda away from the flow. I have the 90 degree ones
Re: Emissions light after cat delete
+1 for spacers, I had mine on for ages before I had a remap and the light didn’t come on once.
I’ve still got them if you’re interested?
I’ve still got them if you’re interested?
Re: Emissions light after cat delete
Thanks for the help guys. I think I'm going to go with the remap option. Spoke to the tuner, who said they expand the range in the computer to effectively delete the fault and the sensor will then read correct to the cpu. A map will give me the option to improve performance as well and I'll get it on the dyno for the first time.
'06 RS4 B7
Re: Emissions light after cat delete
How long did the light take to show up?
2007 B7 RS4 Saloon, Phantom Black, Forge Oil Cooler Kit, custom home made air feed, H&R Coilovers, H&R anti roll bars, 10mm H&R Spacers, Milltek decat downpipes, Milltek Non Res Valved Exhaust, Reyland Motorsports front & rear discs with Hel braided Hoses, full underbody overhauled inc powdercoated subframes and arms, 034 solid subframe bushes and every joint, arm or bush replaced.
Re: Emissions light after cat delete
Thanks, I have a full decat and mines still off, only been running for a few days
2007 B7 RS4 Saloon, Phantom Black, Forge Oil Cooler Kit, custom home made air feed, H&R Coilovers, H&R anti roll bars, 10mm H&R Spacers, Milltek decat downpipes, Milltek Non Res Valved Exhaust, Reyland Motorsports front & rear discs with Hel braided Hoses, full underbody overhauled inc powdercoated subframes and arms, 034 solid subframe bushes and every joint, arm or bush replaced.
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