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P0420 Solved (I think...)
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- Newbie
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P0420 Solved (I think...)
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Last edited by kowsmou on Fri Oct 19, 2018 10:49 am, edited 1 time in total.
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- Senior Member
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- Location: wirral
P0420 Solved (I think...)
Glad you have sorted it op sounds like the fix will be fun just don’t get any speeding tickets and if you get pulled over good luck explaining why glad you can now enjoy
2004 z4 30i auto Toledo blue stubby Areo front back sideskirts and rear spoiler M/// MFSW DLV exhaust mod mma tips vanos overhaul 108s refurbed ram air scoop E46 M3 heated seats clear rear lights M/// sport black grills
- RustyZ4
- Lifer
- Posts: 3622
- Joined: Fri Dec 14, 2007 7:23 pm
- Location: Maidstone, Kent
P0420 Solved (I think...)
Well that's good to hear, no good driving a Z like a granny (no offence) especially if it saved you £1200the only time I did that was when I had to drive to North East and realised I had left my wallet at home managed to get 47 mpg out of a 3.0 litre, so embarrassing driving at 50 on the motorway
Z4 Mineral Grey, 28i MSport Auto, lots of goodies
Z4 E85 3.0, gone but now with son
Growing Old is Mandatory But Growing Up is Optional
Z4 E85 3.0, gone but now with son
Growing Old is Mandatory But Growing Up is Optional
- Number5
- Lifer
- Posts: 6025
- Joined: Tue Sep 24, 2013 7:34 pm
- Location: Bristol M4/M5
P0420 Solved (I think...)
I've experienced the P0420 error before and a dose of Cataclean and sticking to momentum (or any 98 ron fuel) cured it. Cheap easy fix
Alpina Roadster #307
Porsche Boxster GTS
Previous Zs
Stratus E86
G29 30i
1x Imola Z4MR
Alpina #019
10x E85 Se/Si Roadsters
2x E89's
Roof Motor Relocations (Bristol)
Porsche Boxster GTS
Previous Zs
Stratus E86
G29 30i
1x Imola Z4MR
Alpina #019
10x E85 Se/Si Roadsters
2x E89's
Roof Motor Relocations (Bristol)
- buzyg
- Legend
- Posts: 26516
- Joined: Fri May 20, 2011 6:11 pm
- Location: Cornwall
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- Member
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- Location: Windsor
P0420 Solved (I think...)
Cats clean themselves at 7000rpm and 800c iirc for at least half an hour iirc.
As well as licking themselves.
As well as licking themselves.
MR-2 Turbo Rev2
Yep no Z yet. On the hunt.
Yep no Z yet. On the hunt.
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OnlineMr Tidy
- Legend
- Posts: 23803
- Joined: Wed Jul 02, 2014 12:18 pm
- Location: North West Surrey
P0420 Solved (I think...)
Yes, I've had P0420 and 0430 in the past. Cataclean and super-plus fuel has worked for over a year now!
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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- Member
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P0420 Solved (I think...)
good to hear you cured it.
where did you get your oil filler cap.
ive had a similar issue ,my oil filler cap seems allright,doesn't look worn ,but its worth a try
was yours simalar worn or did it look ok.
where did you get your oil filler cap.
ive had a similar issue ,my oil filler cap seems allright,doesn't look worn ,but its worth a try
was yours simalar worn or did it look ok.