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Long Term Fuel Trims


Serangan

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  • Member
  • Member For: 11y 2m 26d
  • Gender: Male
  • Location: Hobart, Tasmania

Just an update, was on the dyno today.

I noticed the data sheet for my injectors had a battery voltage vs pulse width table and hadn't been altered in the tune to suit. Changed that to what the data sheet had and it started being happy fuel trims of -3% and staying around there.

Put it on the dyno to log a/f ratio and it was running richer up top end so the tuner took fuel out there and it made 280rwkw.

Anyway it seems to be running much better now so that last how it is for now.

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  • Member
  • Member For: 11y 2m 26d
  • Gender: Male
  • Location: Hobart, Tasmania

That's what I was thinking. I'm not even a tuner and I picked up on it. They're the second tuner to not change it :/

I'm going to the mainland next time!

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  • Silver Donating Members
  • Member For: 11y 8m 15d
  • Gender: Male
  • Location: Liverpool

very true...

Even with my amateur knowledge, I've seen a couple tunes done by "professionals" and thought, you can't be serious, where they are obviously fudging numbers to overcome an issue, just experimenting with customers cars or simply don't know any better... I enjoy just putting along at my own pace

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