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Engine mis firing

Discuss problems you have had or are having with your Z4
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Chris_D
Lifer
Lifer
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Engine mis firing

Post by Chris_D » Tue Mar 24, 2020 6:56 pm

You may well have found the source of your problem!
Ofc any flex hose needs to be open and not flat in order to operate efficiently.
Anyway you can brace it open at where it’s flat, with a clamp or something, then trying to run the engine in order to cancel it out as the issue?
It sounds like it’s worth replacing in any case.

Cleaning your maf also doesn’t guarantee it’s going to work again if thats the issue.
Try unplugging the electrical connector for the maf then starting to see if that makes a difference. It wont do any damage.
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