06-22-2022, 06:52 PM | #1 |
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'14 435i Cold start data log - MHD stage 1
Hi everyone,
Context: recently tuned the car to the MHD stg1 map after installing FMIC, charge pipe and catless downpipe. Now i don't remember noticing the two things mentioned below before tuning the car. Maybe these are just more noticeable now since the car is louder with the dp? I was wondering if I could get some opinions on this startup log, if it looks clean or not as the idling almost seems to be hesitant at times (more so during more hot/humid temperatures). Also is the RPM jump starting around 6.2s after start up is a normal thing? This happens on every cold start. But only on cold starts. Link: https://datazap.me/u/aksa/2014-435i-...og=0&data=4-25 Any input is appreciated, thanks! |
06-22-2022, 07:16 PM | #2 |
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No one really logs cold start so there's not really a basis of comparison. Does the car stumble or are you just worried about the RPM fluctuation? And yes, you can hear a lot more of the "pulses" through the exhaust after doing DP or exhaust mods, which can almost sound like the car isnt running right even though its the same as it was before just more audible.
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06-23-2022, 05:08 AM | #4 |
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Those types of logs are mostly useless anyway btw..
Milage? Plugs?
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06-24-2022, 01:48 AM | #6 |
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My cold start. Rough idle with cold start delete (see the erratic ign timing). OK right after a flash, but getting worse and worse as time goes. I am considering asking my tuner to try a fixed 0degree timing during warm up cycle.
https://datazap.me/u/harkes/multimap...g=0&data=16-19 https://datazap.me/u/harkes/stage0-c...g=0&data=16-19 PS: Running start-up roar, hence the RPM spike in the beginning.
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