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PCM Coltrolled Alt Voltage Adjustment?


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Vehicle is a 2010 wrangler. The alternator voltage is controlled via PCM and currently charges at 14v.

Does anyone know how to 'fool' it into charging at a higher voltage? Or am I stuck with whatever it deems the charging voltage should be?

Edited by SnowDrifter
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mla mod i think, most jeeps and some chrysters are the same, actully charges at 13.6 or so

Legal TL scores145.6 on the dash sealed up in the low 40hz area with the port out145.5 on the dash sealed up @30hz with the port inless then 1k clamped on a 3.5k!

Why would you EVER WANT flex?
huh?...flex is what can make the lows lower and more air being pushed correct?
jeff_zps9bc81ace.jpg

me_zps0fb5a5b4.jpgMy FeedbackJeep-BuildlogPT LOSER buildlog

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Do you know where to find them? I've been poking around with no luck :(

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here is their site: http://www.missinglinkaudio.com/id24.html

The MLA will set off the check engine light on most applications so just a heads up but it will run just fine. Meade had a MLA before he got the xs power VCM for his tahoe and his MLA made the check engine light come on and stay on, the xs power VCM had corrected his check engine light.

2004 GMC Envoy1 XS power S3400 batt under the hood and 4 XS Power D3100's battery installed in the rear by the amps0 gauge power wire from front to backAlpine iva-w205 touchscreen dvd/cd/mp3/ipod/am/fm/gps headunitSundown Audio SAX-200.4 amp for my mids and highs8 gauge speaker wire from amp to woofer270 amp Mechman AltRockford Fosgate T1652-s component speakersRockford Fosgate 3Sixty.2 sound processorRca's from Rockford Fosgate and Monster Cable14 gauge speaker wire for the mids and highs1 18" Ascendant Audio SMD Dual 1 ohm with custom Black & Blue carbon fiber and hand signed dustcapBox: 5.66 cubic feet net volume box tuned to 30.13Hz with 1.5" wide wooden dowels and 1.5" thick baffle1 DC Audio 5.0k amp wired to .5 ohms nominal with an imp rise of 1.35 ohms for the single AA SMD 18"Future Vision 8000k 50w bi-xenon projector HID's with 4300k 35w fog lightsLink to my build: Buildupdates/progress

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My trucks also got a pcm mechman 270. I get it charges at a lower voltage like 13V right? But whats it mean realy? At 14+v it will charge my batterys faster right? But at 13 it will still charge just over more time? How much more anyone wana take the time to explain it to me plz. Im runing a dc.5k and.a hifonics 150w@4 ch for highs . For batterys I have a stock and a d3400 under the hood. And just got my 2 xp3000.

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If your mechman alt has a AVBM harness and you set the pot to a certain voltage I think it is tricking the PCM? Theres a 1 volt difference so naturally it would charge a bit faster. I would just do without the stock battery if it isn't a agm battery also.

about the check engine light I'm at a loss on that at the moment. I would rather not "fool" the PCM and just let it do what it wants to do naturally. this is where I'm stuck at personally.

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