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  1. #1
    Member Mark 318 ita's Avatar
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    4.7 pcm swap with a tuned one coming from a 4.7 HO

    Hi guys,
    me and my friend Ale (http://thespeedfreaks.net/showthread...-Ale-s-2000-wj) know that in a junkyard close to where we live there is a wg 4.7 HO with a superchip tuned pcm.
    question is: is it possible to just swap out the pcms? will the engine run o a different pcm? any issues with the keys?

    thanks
    Last edited by Mark 318 ita; 03-13-2017 at 05:34 AM.
    98 ZG 318 limited: np 242 swap,dana30hp swap,aussie locker, shift kit, optima red, 170lbs reduction, 5.9 vents, kn air filter, air ram, 1.7 HS RRs, SCT 93 oct tune, magnaflow muffler 12255, magnaflow hi-flo cat, spectre air hat, 2x52mm tb, 5.9 efan swap, ngk fr5-1 plugs, mopar perf wires, new cap 'n rot, maxxperf coil, iat relocation, roof lights, pirelli scorpions on masitaly 16x7 rims ET=0, ome HD coils +2",rubic exp +2"shocks, skyjacker ss, rubic exp adjustable front arms, jks rear+procomp front trackbar, prothane engine n tranny mounts, prothane sway bars bushings, drilled n slotted rotors, aeronautical front brake lines, purple led into front grill, hella h4s 100/55w, osarm h3s 55w.
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  2. #2
    RallyJeep GO
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    I'm not sure if the security stuff would be an issue or not. Other than that, the swap will have issues. A 4.7 HO has an extra knock sensor that a regular 4.7 doesn't, so you'll have a check engine light and possibly other issues. And the engines are different enough internally that the tune for the HO won't be correct for a regular 4.7 (and may not end up being any better than stock power-wise). The HO also revs higher from the factory, not sure how much you can safely raise the rev limit on a standard 4.7.

    Basically, I wouldn't swap it. If you want the 4.7 tuned, just tune the existing PCM.
    1998 ZJ 5.9 Limited - Deep Slate
    Mods: Big trans cooler, 231 swap, Indy MA-X heads prepped by IMM, Comp 20-744-9 cam, 1.7 HS roller rockers, 52mm TB, Airgap manifold, DT headers and full 3" exhaust, SCT tune homebrewed by me, Martin Saine valve body, B&M tranny pan, magic suspension made from unicorn tears, power steering cooler, lots of lighting mods

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