Questions about handheld tuners
There is no comparison between full tuning suites, and hand-helds.
If you're wanting to have full control of your engine, and you want an easy-to-learn, state of the art solution, www.efilive.com.
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Good luck.
You can spend a few hundred bucks on a handheld and be severly limited to what the manufacturer allows you to do.
Or you could spend a bit more on a "pro" dyno tune, which most of us here have done and can testify to the hole left in our pockets.
Or you could spend about the same money for a tuning suite that allows you to make any tuning adjustment you need, when ever you need it, and you have the option of helping your buddies out to recoupe some or all of your investment.
No matter what, you will need to research your options and decide where you money is best spent.
If you're wanting a recommendation, I'd recomend you check out EFILive. No tuning solution on the market today (or the foreseable future) offers more bang for the buck.
There are a lot of reasons your engine could be acting up. Would really help if you had a scan tool, or access to one, to see what the PCM is fussing about. When I put my headers on, I !AIR, !EGR, & !CATs at the same time and waited several weeks before getting the SES tuned out. I had the SES, but don't recall anything similar to limp mode. Could very well be a coil pack is loose, O2 sensor wiring rubing the header, or ???
Now if I could just find out what's wrong with my current car
Runs great 90% of the time and then decides to idle at 3000rpm. I am now an expert at swapping PCMS

