MAF and MAP readings 2004 BMW 320d Compact

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hendo2000272
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MAF and MAP readings 2004 BMW 320d Compact

Post by hendo2000272 » Mon Feb 02, 2015 1:47 pm

Hello can anyone help me with what the readings should be on a diagnostic reader at idle for the above 2 sensors. My vehicle is over fueling at idle and really smelly, had the coolant temp sensor and MAF replaced and still the same. Friend said to check the given reading from both at idle.

Thanks

Steve

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Re: MAF and MAP readings 2004 BMW 320d Compact

Post by AuthorMike » Tue Feb 03, 2015 9:42 am

hendo2000272 wrote:Hello can anyone help me with what the readings should be on a diagnostic reader at idle for the above 2 sensors. My vehicle is over fueling at idle and really smelly, had the coolant temp sensor and MAF replaced and still the same. Friend said to check the given reading from both at idle.

Thanks

Steve
Hi There,

If you are asking for manufacturer specific data, it may be that our members do not know that information. Do you own a PicoScope, are you able to take a waveform and share here for discussion?
Mike Valentine
Technical Author @ Pico Technology UK

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Fat Freddy
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Re: MAF and MAP readings 2004 BMW 320d Compact

Post by Fat Freddy » Sat Feb 07, 2015 12:24 pm

The fact that is running rough at idle will effect those figures - chicken and egg. How do you think a leaking EGR would effect figures?

Cheers
FF

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