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Emissions light on after removal of middle box
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- Joined: Thu May 03, 2018 10:46 pm
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Emissions light on after removal of middle box
I had the middle exhaust box (the one under the doors) removed from my Z4 3.0Si and it has thrown up the emissions light on the dash. Has this happened to anyone else who has done this modification? Is there a way to have the emissions light put out or will I end up putting the middle box back on? I simply had two straight pipes put on in place of the box.
- Markos_Z4
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- Location: The Netherlands
Emissions light on after removal of middle box
i have the same setup no resonator just straight pipes no problem so far !
most of the time emission light burns it give a camshaft sensor fail code ( thats what i have ) you get that code with a bad start !
it will go away in couple days ( reset )
if your z4 engine sputter you will have a defect Lambda Probe ( expensive parts ! you got 4 of them )
if your car has no power wen pulling up your MAF sensor is dirty ! clean it with air intake cleaner ! no brake cleaner ! ( very expensive part )
most of the time emission light burns it give a camshaft sensor fail code ( thats what i have ) you get that code with a bad start !
it will go away in couple days ( reset )
if your z4 engine sputter you will have a defect Lambda Probe ( expensive parts ! you got 4 of them )
if your car has no power wen pulling up your MAF sensor is dirty ! clean it with air intake cleaner ! no brake cleaner ! ( very expensive part )
M-Front & M-Rear Bumper / Aero Skirts / 9J + 10.0J 20 inch Barracuda Voltec T6 gloss black inox Lip / Custom Quad Exhaust / Gloss Black Painted Roof / Gloss Black Painted front Lip / M-Sport Suspension / M-interior
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Emissions light on after removal of middle box
Same for me, no front silencer... or much of a rear silencer either but no engine light! Worth reading codes to find out what the error is... hopefully it's not a lambda sensor!
E86 Coupe 3.0si Sport - Montego Blue, Pearl Grey with Piano Black dash
BC BR series Coilovers, powerflex bushes, 15mm spacers, Custom SS exhaust, CDV delete
BC BR series Coilovers, powerflex bushes, 15mm spacers, Custom SS exhaust, CDV delete
- Mr Tidy
- Legend
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- Joined: Wed Jul 02, 2014 12:18 pm
- Location: North West Surrey
Emissions light on after removal of middle box
I hope it's not serious, and easily fixed OP.
A previous owner of mine had a custom cat-back system put on it - his next expense was lambda sensors!
A previous owner of mine had a custom cat-back system put on it - his next expense was lambda sensors!
Coupes because stunning!
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
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Emissions light on after removal of middle box
One of my post cat lambda sensors failed following the removal of the original exhaust system to fit a cat back system, so I think they are prone to damage from work to the rest of the system (e.g. the inevitable grinding off of the rusty manifold studs and redrillling etc). You need to read the fault code to confirm, but beware my Indy tried two ‘cheap’ replacement O2 sensors and each time the light was back on within 10 miles! Fitted a new BMW part in the end (£££) and all was well.
Chris
Chris
08 Z4 3.0si Sport Coupe in Montego Blue