Mitsulogger - Low fuel trim
Jun 12, 2007, 03:43 AM
#1
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Mitsulogger - Low fuel trim
Hi 
Just for documentation!
If my low fuel trim on mitsulogger is reading -3 what does that tell me? (On evoscan the high fuel trim reads 92). All other trims are 0 (or 100 in evoscan).
(Upgraded injectors to 750cc)
I feel the idle is a bit low(ish)...
Not smooth as stock.
Stock idle was 845, now it is 815 according to logs.
What does the -3 tell me? Before with stock injectors my low and mid trim were 2 in mitsulogger.
Just for documentation!
If my low fuel trim on mitsulogger is reading -3 what does that tell me? (On evoscan the high fuel trim reads 92). All other trims are 0 (or 100 in evoscan).
(Upgraded injectors to 750cc)
I feel the idle is a bit low(ish)...
Not smooth as stock.Stock idle was 845, now it is 815 according to logs.
What does the -3 tell me? Before with stock injectors my low and mid trim were 2 in mitsulogger.
Last edited by Oracle1; Jun 12, 2007 at 04:16 AM.
Jun 12, 2007, 07:09 AM
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For some odd reason the .99 version of evoscan put the low trim as the high trim and visa versa. I don't know if that was on purpose or by accident. Pervious versions of Evoscan had it the same as Mitsulogger. I posted this but do not know if evo4mad read it or not.
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Jun 12, 2007, 09:54 AM
#9
Don't worry about making the idle leaner. Your -3% is fine. It won't stay at -3 anyway. Watch it for a while over a few days/weeks. It will adjust up and down a bit. That's what the trims are for.
If you find that it starts drifting further away and staying there, like -10%, then you can worry about fixing that. There are a few ways of doing it. You can search for a few posts that I have made on scaling injectors, deadtime (latency), and how changing latency and scaling will affect the different trims.
But don't worry about anything now. You're fine.
Eric
If you find that it starts drifting further away and staying there, like -10%, then you can worry about fixing that. There are a few ways of doing it. You can search for a few posts that I have made on scaling injectors, deadtime (latency), and how changing latency and scaling will affect the different trims.
But don't worry about anything now. You're fine.
Eric
Jun 12, 2007, 11:45 AM
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Update:
Increased latency a notch (0.024) and now it idles better and the trim is at -1. The main thing is that it idles better. Before car would slighlty shake - driving me nuts!
Result!
Increased latency a notch (0.024) and now it idles better and the trim is at -1. The main thing is that it idles better. Before car would slighlty shake - driving me nuts!
Result!
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