Low maf reading at high rpm

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Topic: Low maf reading at high rpm (Read 3819 times)

Fyzzz

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	Low maf reading at high rpm « on: June 13, 2021, 01:01:45 AM »

I have been tuning my car and pretty happy with the results, done alot of logging. My maf reading has been very weird, it's barley any higher than slightly modified bex file, but the car is way faster.
I changed out the maf sensor over a year ago when I bought the car. I did not buy a bosch one (some other brand).
My car is bfb engine code with bex turbo and injectors. I have also installed BKR7E copper plugs and recently a FMIC.

Latest log: https://drive.google.com/file/d/1zKvET2MC2rsXFW7TGcJWlCZd_f9WnLcc/view?usp=sharing


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Norwegian1.8T

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	Re: Low maf reading at high rpm « Reply #1 on: June 13, 2021, 01:16:33 AM »

Only OEM Bosch MAF sensors are the ones who work properly on Bosch ECU's.
I've tried multiple aftermarket MAF sensors and they've all been shit. Get an used or new OEM one


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Fyzzz

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	Re: Low maf reading at high rpm « Reply #2 on: June 13, 2021, 03:24:54 AM »

I tried my old maf sensor (which i knew wasn't in great condition) tried cleaning it. Interesting to see what would happen. It reads a bit to optimistic now, maybe I have to order a new Bosch sensor.

https://drive.google.com/file/d/1c9arDXzfLOZzQUjQ7U0us3KPuH-f34K2/view?usp=sharing


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Fyzzz

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	Re: Low maf reading at high rpm « Reply #3 on: June 15, 2021, 02:44:57 AM »

Update, I bought a new bosch sensor, 0280218063 which should be the correct one. Should show up soon, interesting to see if anything changes.


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Fyzzz

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	Re: Low maf reading at high rpm « Reply #4 on: June 22, 2021, 04:19:22 AM »

New bosch sensor did the trick. The log looks much better.


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Norwegian1.8T

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	Re: Low maf reading at high rpm « Reply #5 on: June 24, 2021, 02:09:03 AM »

Quote from: Fyzzz on June 22, 2021, 04:19:22 AM

New bosch sensor did the trick. The log looks much better.

Great


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nyet

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	Re: Low maf reading at high rpm « Reply #6 on: June 24, 2021, 02:29:43 PM »

Thank you for keeping us updated; it is extremely helpful to others when people post problems they've solved and how.


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ME7.1 tuning guide (READ FIRST)
ECUx Plot
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Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.

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