I spent months earlier this year trying to troubleshoot and fix 2005 Wrangler problems - P0700, multiple P16xx, bad shifting, limp mode out of the blue, etc. Wasted money trying to get help at a tranny shop. Based on forums, finally concluded it was a flaky PCM. Jeep said the part was no longer available. I couldn't identify a vendor I could trust to sell and back a product; thought about rolling the dice but just couldn't do it. Left the Jeep in the garage for months.
When I revisited my problem last month, I learned of wranglerfix.com from Ozzstar on YouTube and decided to call Mark at Wranglerfix, who explained how they tackled the problem without relying on used, salvage Jeep PCMs. I found several other positive experiences with wranglerfix.com and not one negative. I ordered the part which took about two weeks to arrive. I was happy to wait as Mark explained that they test the particular unit to be shipped in their Jeep for a few days before shipping.
Took five minutes to install. Jeep fired right up. No concerns after a week. Passed Texas state inspection.
I hope the fix is durable, and I have no reason to believe it's not...time will tell.
I am very thankful that wranglerfix.com took an interest in providing a solution (and at a reasonable $573) to this problem in a niche market.