Quote:
Originally Posted by patrickkc
This has been happening to me too. 2019 M5comp. 0-100 times pretty bad.
Not sure what's wrong, no lights on or anything. I feel there might be a bog from 1st to 2nd.
No tune in the winter, with winters and wet ground, managed 3.88 0-100
After tune, OTS 91 BM3 stage 1 - 3.6-4.5s 0-100. ( did a few launches ) Thought the tune was bad, so I took the tune off.
No tune on summers ( brand new PS4S ) 0-100 3.5s.
Put the tune back on last week, 0-100 3.47s.
I thought it was fuel before, but I've been through a few tanks with same results. Reading around, it might be the high and low pressure fuel pump issues, since my car sounds like it's about to die during some startups.
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I’m starting to think the same, my horsepower guate isn’t passing 320 now, I did a 0-60 run and it was about 3.6 previously it was 2.9-3.2