Setting Up Larger Injectors
#1
Setting Up Larger Injectors
Hi all,
With reference to this thread:
https://www.evolutionm.net/forums/ec...ng-help-2.html
I am still having problems with my injectors.
I have the scaling/latencies sorted.
My hot/cold start is fine.
It's when the temp is somewhere in the middle the 'fun' begins
I've scaled down the 'cranking primer first pulse' & the 'post primer enrichment' which seemed to help a little bit.
Having just read the thread in 'alternative fuels' regarding the idle stepper look up table, I've made the relevant changes, but I'm nowhere near home to test at the moment.
This got me reading A LOT of threads to do with the scaling of various tables when fitting larger injectors, such as the accel enrichment tables etc.
I was simply wondering which (if any) should be scaled to suit larger injectors. i.e. are the numbers in the aforementioned tables just 'numbers' relating to 'injector open time' and not referencing the actual injector scaling being used?
Any ideas more than welcome, this warm-cranking is annoying
Cheers.
With reference to this thread:
https://www.evolutionm.net/forums/ec...ng-help-2.html
I am still having problems with my injectors.
I have the scaling/latencies sorted.
My hot/cold start is fine.
It's when the temp is somewhere in the middle the 'fun' begins
I've scaled down the 'cranking primer first pulse' & the 'post primer enrichment' which seemed to help a little bit.
Having just read the thread in 'alternative fuels' regarding the idle stepper look up table, I've made the relevant changes, but I'm nowhere near home to test at the moment.
This got me reading A LOT of threads to do with the scaling of various tables when fitting larger injectors, such as the accel enrichment tables etc.
I was simply wondering which (if any) should be scaled to suit larger injectors. i.e. are the numbers in the aforementioned tables just 'numbers' relating to 'injector open time' and not referencing the actual injector scaling being used?
Any ideas more than welcome, this warm-cranking is annoying
Cheers.
#4
It just cranks for several revolutions, then catches.
Previously, it fired straight away.
If only it was that easy
Slight throttle sometimes helps, but the difference is cranking time is neglible.
Correct about the time though, it's roughly anything over about 1 hour till stone cold
Previously, it fired straight away.
If only it was that easy
Correct about the time though, it's roughly anything over about 1 hour till stone cold
#5
Well, changing the values in the idle stepper table (see alt fuels thread) caused a few wierd and wonderful things.....
Revving itself to 2.5k on start, strange hesitation on light throttle cruising etc...
So that's changed back to normal.
Can someone please answer my original question re: the other fuel tables?
Pleeease
I'm really starting to hate my car
Revving itself to 2.5k on start, strange hesitation on light throttle cruising etc...
So that's changed back to normal.
Can someone please answer my original question re: the other fuel tables?
Pleeease
I'm really starting to hate my car
#6
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Maybe some of the things in this thread will help you.
https://www.evolutionm.net/forums/al...-ones-e85.html
https://www.evolutionm.net/forums/al...-ones-e85.html
#7
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Well, changing the values in the idle stepper table (see alt fuels thread) caused a few wierd and wonderful things.....
Revving itself to 2.5k on start, strange hesitation on light throttle cruising etc...
So that's changed back to normal.
Can someone please answer my original question re: the other fuel tables?
Pleeease
I'm really starting to hate my car
Revving itself to 2.5k on start, strange hesitation on light throttle cruising etc...
So that's changed back to normal.
Can someone please answer my original question re: the other fuel tables?
Pleeease
I'm really starting to hate my car
Those values in the table in that thread are just a guide, you have to fine tune the values for your set-up.
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#8
Maybe some of the things in this thread will help you.
https://www.evolutionm.net/forums/al...-ones-e85.html
https://www.evolutionm.net/forums/al...-ones-e85.html
When i changed the values back to stock the jerkyness went. I'm not entirely sure what i need to be fine tuning as my axis labels are slightly different but all the figures within are the same(ish).
I presume that the high revving mean that i need to knock the values down a touch?
And the jerkyness? Anyone else experienced that?
Many thanks for the replies
#9
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Yeah, if it shoots up to 2.5k, you need to reduce the values. It's tough to say why you're having jerkiness though... I do not think IC steps can cause that..
I'd suggest adjusting the ICSV table again, maybe use lower values, disconnect the battery and then when you restart the car, it may need some time to relearn the idle. So let it idle for a bit, drive around and try the warm start again. I think it's worth a try.
I'd suggest adjusting the ICSV table again, maybe use lower values, disconnect the battery and then when you restart the car, it may need some time to relearn the idle. So let it idle for a bit, drive around and try the warm start again. I think it's worth a try.
#11
Yeah, if it shoots up to 2.5k, you need to reduce the values. It's tough to say why you're having jerkiness though... I do not think IC steps can cause that..
I'd suggest adjusting the ICSV table again, maybe use lower values, disconnect the battery and then when you restart the car, it may need some time to relearn the idle. So let it idle for a bit, drive around and try the warm start again. I think it's worth a try.
I'd suggest adjusting the ICSV table again, maybe use lower values, disconnect the battery and then when you restart the car, it may need some time to relearn the idle. So let it idle for a bit, drive around and try the warm start again. I think it's worth a try.
Would you still advise the above? It seems like a big change...
EDIT: I know it says throttle position but surely that's a xml label mismatch or something?
Last edited by wip; May 15, 2009 at 03:00 PM.
#12
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If you log ICS steps while driving they do seem to be directly related to throttle position. When you press on the throttle the steps increase instantly and when you let off they go down instantly.
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