190/100's with irratic/choppy idle - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 06-12-2014, 06:07 PM Thread Starter
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190/100's with irratic/choppy idle

Buddy has a new set of Industrial Injection 190/100 injectors. He's still running the same tuning from when was running 155/stock injectors. Said he's getting an irratic/choppy idle. Really noticable on #5 with the scanner. But says if he raises the rpms like 200-300rpms....it smooths out. I told him its probably because they have plugged spill ports and not having the right tuning for them. He's running ID's tuning. Told him to get a hold of Eric and have him revise the tuning for the new injectors. What do you guys think?
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2004 F-350 SC 4x4, XLT, 4" dual Magnaflow, AFE intake, No Limit piping, spearco intercooler, water injection, ARP studs, hypemax o-ringed heads, SCT tuned by Innovative Diesel, tuned FICM, Hellman's sump, FASS, Fuelab, regulated return, 190/75 injectors, KC/MTW 68 w/.72ar, suncoast trans w/billet input, edge insight CS with dakota digital gauges, amsoil by-pass, BD exhaust manifolds
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post #2 of 5 Old 06-12-2014, 06:36 PM
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As you mentioned he needs plugged spill port tuning. My truck idled like garbage before I changed my tuning. Eric can fix this.

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post #3 of 5 Old 06-12-2014, 08:21 PM
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When I went from 175/stock to 175/75 I got the same issue...


plugged spill ports and larger nozzles can cause the issues.


I would definitely tell him to get his tunes revised

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post #4 of 5 Old 06-13-2014, 05:56 PM
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Same here. My truck idled rough when I made the jump to 190/75s from stock. I put the new tune on, smooth sailing.

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post #5 of 5 Old 06-16-2014, 05:33 AM
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The IPR % at idle will need to be slightly adjusted to increase the ICP to help prevent the iratic / rough idle although occassionally the PCM tune is not enough. If you are still having issues with the low throttle characteristics of your truck after the tune has been revised, shoot me a PM on here. We have developed custom FICM files that are geared to correct a lot of these issues.

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Comments or opinions expressed by me do not necessarily represent the views of PHP, its management, nor its employees. PHP is not responsible for, and disclaims any and all liability for the content of comments written by me.
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