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M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > Dorch STG1 HPFP Noise Issue

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      01-25-2021, 12:46 PM   #23
SebsM2
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Told ya! Glad you got it figured outb
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      10-18-2021, 06:31 AM   #24
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I have the exact same issue, just with the stg2+ multimap, everything is running fine on the stg2+ racegas map. But since petrol prices are going nuts in europe currently, I like the option to switch maps on the fly. Guess the only way to fix it, is to reach out to Halim, and get them to change the rail pressure parameters for the stg2+ multimap as well....
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      10-19-2021, 01:25 AM   #25
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According to Dorch there’s a group of M2’s that needed more attention and the fix from earlier in the year didn’t work, like mine. This was over a month ago and Chris told me they had sent this update to Bm3, it’s over to them to make it live.

I haven’t reflashed my car to see if it’s cured the noise or not yet.
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      10-26-2021, 09:51 AM   #26
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Well, I am so pleased to find this thread!!

Have the Dorch S1 HPFP installed on my OG M2.
I also have the cricket sound, which I can also confirm gets louder when it's either colder outside, or engine is cold.

However, I am also experiencing some hesitation, what feels like fuel cut, at low RPMs, usually between 1500 to 2500 rpm, under load, highe gear going up a hill is when it's most noticeable, but this only happens when the engine is at operating temperature.

I am assuming it's something to do with the HPFP.
Car is running BM3 Stage 2.
What are my options?
Thanks 👍
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      11-06-2021, 07:54 AM   #27
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Quote:
Originally Posted by DoZZa View Post
Well, I am so pleased to find this thread!!

Have the Dorch S1 HPFP installed on my OG M2.
I also have the cricket sound, which I can also confirm gets louder when it's either colder outside, or engine is cold.

However, I am also experiencing some hesitation, what feels like fuel cut, at low RPMs, usually between 1500 to 2500 rpm, under load, highe gear going up a hill is when it's most noticeable, but this only happens when the engine is at operating temperature.

I am assuming it's something to do with the HPFP.
Car is running BM3 Stage 2.
What are my options?
Thanks 👍
reflash the map. the new update includes the fix for the cricket sound. dorch sent the new calibrations for the stage 1 pump to bm3. i reflashed mine yesterday and the sound is completely gone.
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      11-19-2021, 10:38 AM   #28
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Quote:
Originally Posted by Dj_Quik View Post
reflash the map. the new update includes the fix for the cricket sound. dorch sent the new calibrations for the stage 1 pump to bm3. i reflashed mine yesterday and the sound is completely gone.
This is interesting!

My map isnt showing as having an update. But I'll reflash and see if it makes a difference. Thanks
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