Help understanding maf waveform

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Burt_100
OneWave
OneWave
Posts: 37
Joined: Sat May 06, 2017 9:52 am

Help understanding maf waveform

Post by Burt_100 »

Hi,
I have a Renault Trafic that I have checked the maf on, I suspect it’s either a maf issue or sticking egr valve (down in power & no fault codes) the egr isn’t accessible without a lot of stripping, how can I determine using the maf waveform which is at fault? See attached waveforms for reference, they both start at idle and I snap the throttle wide open and back to idle again
Thanks
Attachments
20210821-0001-trafic maf 1.psdata
(866.81 KiB) Downloaded 268 times
__20210822-0001-vivaro maf.psdata
(3.16 MiB) Downloaded 264 times

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