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no chip, its 2004 wrangler.. basically mid 80's technology. It's looking more and more like possible PCM
Quote from: cavemann on August 12, 2020, 11:44:45 AMno chip, its 2004 wrangler.. basically mid 80's technology. It's looking more and more like possible PCMIt's OBD2, not mid 80's technology. Mid 80's seats, but modern electronics. Chrysler calls the security keys "SKIM" keys(security key interface module) and plenty of Wranglers of that vintage have SKIM keys. Is the key black or gray? I will virtually guarantee you it's not a key problem, even if it does have a SKIM key. What makes you think it's a bad PCM?Also it should be a 2.5, right? Not a 2.4. Does it have fuel pressure? You can see if you have fuel at the rail by depressing the schrader valve at the test port, but you won't be able to tell if it's adequate fuel pressure without a fuel pressure gauge. Crank sensors are common issues. Might have a bad crank sensor. If you're going to throw parts at it, I'd throw a crank sensor at it as a guess. Really without being able to check fuel pressure and/or check for fault codes, you're guessing.