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P0420 Solved (I think...)

Discuss problems you have had or are having with your Z4
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kowsmou
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P0420 Solved (I think...)

Post by kowsmou » Tue May 15, 2018 1:23 pm

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Last edited by kowsmou on Fri Oct 19, 2018 10:49 am, edited 1 time in total.

bz4kev
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P0420 Solved (I think...)

Post by bz4kev » Tue May 15, 2018 2:57 pm

Glad you have sorted it op sounds like the fix will be fun :rofl: just don’t get any speeding tickets :driving: and if you get pulled over good luck explaining why :rofl: 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

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RustyZ4
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P0420 Solved (I think...)

Post by RustyZ4 » Tue May 15, 2018 5:41 pm

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 :x managed to get 47 mpg out of a 3.0 litre, so embarrassing driving at 50 on the motorway :oops:
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Number5
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P0420 Solved (I think...)

Post by Number5 » Tue May 15, 2018 5:57 pm

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 :thumbsup:
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buzyg
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P0420 Solved (I think...)

Post by buzyg » Wed May 16, 2018 12:57 am

What a fine way to cure a fault. :driving: :D :thumbsup:
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Monkeydonkeyratmagic
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P0420 Solved (I think...)

Post by Monkeydonkeyratmagic » Wed May 16, 2018 11:34 am

Cats clean themselves at 7000rpm and 800c iirc for at least half an hour iirc.

As well as licking themselves.
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Mr Tidy
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P0420 Solved (I think...)

Post by Mr Tidy » Wed May 16, 2018 11:16 pm

Number5 wrote: Tue May 15, 2018 5:57 pm 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
Yes, I've had P0420 and 0430 in the past. Cataclean and super-plus fuel has worked for over a year now! :)
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bluepain
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P0420 Solved (I think...)

Post by bluepain » Fri May 18, 2018 1:20 pm

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. :D

kowsmou
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P0420 Solved (I think...)

Post by kowsmou » Sat May 19, 2018 4:08 pm

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