Stumble/miss on throttle jab.... - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 2 (permalink) Old 04-08-2011, 02:21 AM Thread Starter
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Stumble/miss on throttle jab....

We just replaced a pigtail and UVH on my brothers 95 and now it idles fine and runs fine but when I stab the throttle it stumbles for a split second then picks right up. Doesnt matter where I jab it at from idle to 2500 it does the same thing. A little stumble then just purrs away. Everything is smooth aside from that. I can put his chip on high idle ~1200 and its fine no miss or anything and stab the throttle and stumble then fine.

Mods are intake, exhaust, chip.

A search turned up CPS or possibly an IPR? Anyway to check for sure on either of these?

Thanks in advance.

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post #2 of 2 (permalink) Old 04-08-2011, 12:15 PM
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Re: Stumble/miss on throttle jab....

You can check the IPR by removing and cleaning or replacing it. The only way to truly verify a CPS issue is to replace it and see if the symptoms go away.

97 F-350 XLT CC DRW 4X4 PSD, 285/75-16 Custom bumpers, Gauges-boost/egt/trans, Swamps IDM, 3.5"dp- 4" exh., 3" Body lift, ES bushings/mounts, Built trans, billet conv, B&M pan, Hayden cooler, Adrenaline, stage 2's, IC, H2E, E-fuel
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