Getting 800cc injectors to idle
#23
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The injectors are supporting 14.7 at idle just fine, its the damn ecu leaning as soon as voltage drops. Here is an example, i lower my windows, a/fs go up to 17 parts for few seconds. i turn on the lights, same thing, i rise/lower both windows at the same time, engine dies because its leaning out +19a/fs...
I keep picking at it little by little but that voltage drop a/fs increase i cannot figure out yet.
I keep picking at it little by little but that voltage drop a/fs increase i cannot figure out yet.
#25
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Honestly i'm hoping to replace them the next emissions testings if not sooner, i've just about had it with those big injectors. .001ms makes enough difference to go lean and the car to die at idle...either that or they are opening different amounts whenever they want to as adaptronic isnt showing any changes in ms nor the air sensor.
I wish i had stuck with my plans and gotten smaller but Travis said he had those idling...
I wish i had stuck with my plans and gotten smaller but Travis said he had those idling...
Last edited by triple88a; 11-19-2010 at 04:24 PM.
#27
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Well the issue is that they are doing whatever they want. Now they would be extra rich, a sec later same setting they will go to lean then back to rich. I cannot get a solid a/f unless i'm pushing them at +3ms. Not only at idle, any setting that is at low ms goes crazy.
#28
Hrrrm, upgrade to the newest firmware and see if PD ignition helps solve the problem. Like I said man. I didn't get that idle completely finished when you were down, (we were having problems with the labtop connecting). Meet me somewhere, and I'll get it tuned the rest of the way in or we'll get a new set of injectors in it.
If you do your turbo upgrades first, I've been planning to goto Chicago anyways. Find a place with a set of rollers rent some time and I'll tune in your new setup for free, and then finish your idle out.
If you do your turbo upgrades first, I've been planning to goto Chicago anyways. Find a place with a set of rollers rent some time and I'll tune in your new setup for free, and then finish your idle out.
#30
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Getting them injectors to start in sub 0 temps seems to be even bigger issue. Currently I have them set for cranking between 4-5ms which is obviously rich however if i lower them down to 2-3 ms where they should be, the car keeps cranking like there is no fuel.
#32
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My fuel map is the only thing that is alright, i got it to start at 36 at -10c and slowly reducing fuel as temp goes up to 29 at like 60C and then 29 from there down.
I'll get the map tomorrow.
I'll get the map tomorrow.
#33
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As promissed this is what i'm running right now. Please understand this map is not perfect. I'm running at 6 psi so it is tuned up to only 140. Dont forget the baseline of your sensors will change the tunes little bit.
#34
I got my car running with original 240cc map when reduce idle values from 2.4ms to 0.8ms. AFR was 14.7 straight up as seen here: http://www.youtube.com/watch?v=lHKfuVQCJDw
Do I have to change “dead time values” with these DW injectors? My stock injectors seems to have 1,1ms but triple88a has 0,14ms in his ECU file. What is correct value with these Deatschwerks?
Do I have to change “dead time values” with these DW injectors? My stock injectors seems to have 1,1ms but triple88a has 0,14ms in his ECU file. What is correct value with these Deatschwerks?
#39
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I got my car running with original 240cc map when reduce idle values from 2.4ms to 0.8ms. AFR was 14.7 straight up as seen here: http://www.youtube.com/watch?v=lHKfuVQCJDw
I changed my dead times to the values provided with the injectors as they seem a little less laggy although the motor seems to die easier when the fans turn on.
Last edited by triple88a; 04-05-2011 at 10:25 PM.
#40
I ended up to ditch my old map and start new VE map with correct dead time values from Deatschwerks. My idle shows steady 14.7 now after cold start enrichments.
Car runs happy now. At 160kPa I see inj.duty cycles around 50% Only problem is that my Water injection seems to destroy my MAP sensors pretty quick. Have to use longer boost hose for sure…
Car runs happy now. At 160kPa I see inj.duty cycles around 50% Only problem is that my Water injection seems to destroy my MAP sensors pretty quick. Have to use longer boost hose for sure…