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help with new delph 42lb

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Old Nov 6, 2008 | 03:46 PM
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Default help with new delph 42lb

I have changed my IFR and voltage table for injectors and still running lean at idle around AFR +17. I started redoing my v.e table and my number were a lot high than before. Please let me know what you guys think. Can log you pid in EFIlive to voltage at the injector?
Thanks guys
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VEos03turbo_old_0002.tun (476.5 KB, 135 views)
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Old Nov 6, 2008 | 04:30 PM
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If it seems uncontrollable and random, plobly ripped a O ring putting them in. I did the same thing let me see if I can find my old thread.

FYI my oring looked fine but a new set fixed the problem...
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Old Nov 6, 2008 | 04:45 PM
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Originally Posted by charcold-bowtie
If it seems uncontrollable and random, plobly ripped a O ring putting them in. I did the same thing let me see if I can find my old thread.

FYI my oring looked fine but a new set fixed the problem...
I put some lube on them before putting them. The a/f stay same unless i get the vacuum close to 20 and a/f will drop close to the command a/f. So I'm leaking air around the injector?
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Old Nov 6, 2008 | 04:47 PM
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Thats my guess, even if the IFR is close it shouldnt be that bad, especially after a little ve work.

Obviosly leaking on the botom of in injector, if it was the top you would have a gas leak.....
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Old Nov 6, 2008 | 04:56 PM
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The only thing I had to change in my tune to run the 42 - 44 lbs injectors was the IFR table. I notice mine is lean as well at idle under COS3 but does it really matter?
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Old Nov 6, 2008 | 04:59 PM
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Originally Posted by charcold-bowtie
Thats my guess, even if the IFR is close it shouldnt be that bad, especially after a little ve work.

Obviosly leaking on the botom of in injector, if it was the top you would have a gas leak.....
I read your thread its simlar. with new injectord it's leam unless i put foot on the gas rev to about 1200 and let vaccum get close to 20 and a/f is great. So i'll stop by the dealer and get new injector o-rings and trt it again.
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Old Nov 6, 2008 | 05:02 PM
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Originally Posted by Mort
The only thing I had to change in my tune to run the 42 - 44 lbs injectors was the IFR table. I notice mine is lean as well at idle under COS3 but does it really matter?
MIne lean at idle and driving truck around the block and yes that bad.
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Old Nov 6, 2008 | 05:36 PM
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You don't need to monkey around with the voltage offset, I don't understand why people do this. I just changed the IFR table for mine and my AFR idle is perfect at 15.1:1 Who told you to change the voltage offset?
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Old Nov 6, 2008 | 05:55 PM
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Originally Posted by hirdlej
You don't need to monkey around with the voltage offset, I don't understand why people do this. I just changed the IFR table for mine and my AFR idle is perfect at 15.1:1 Who told you to change the voltage offset?
Only change it trying to get the a/f to get back in line. When left stock my a/f was in the 20s. Now that changed a/f is in the 17. I'm just trying to fix the problem. If have any ideas on this let me know.
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Old Nov 6, 2008 | 06:28 PM
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I can't open .tun files with HPT but try this for your injector settings. I have 62PSI of fuel pressure at idle and this is what I used.

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