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Questions about handheld tuners

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Old Dec 22, 2007 | 04:18 AM
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Default Questions about handheld tuners

i am considering buying a tuner. I have a 2000 trans am. i put race headers on so my egr/air systems are now not functional. My car is running horrible. It sounds like it is going to die at low RPM's and at WOT runs just fine. it is getting 8 miles to the gallon and just plain sucks. Can the Vinci, predator, or hp handheld fix this? Please let me know feedback b/c i dont want to spend alot of money to acheive nothing.
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Old Dec 22, 2007 | 05:21 AM
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Handheld = achieved nothing. Get a tuning suite such as EFI Live or HP Tuners. I prefer HP Tuners myself. Just my .02.
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Old Dec 22, 2007 | 05:59 AM
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A full tuning suite will enable you to tune the vehicle to your liking. Check out www.efilive.com and www.greenlightmotorsports.com
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Old Dec 22, 2007 | 06:03 AM
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You think tuning it will take care of my problems?
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Old Dec 22, 2007 | 07:14 AM
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Certainly wouldn't hurt to turn off all the EPA equipment you took off and tweek the fueling and spark to optimize your addition of the headers.
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Old Dec 22, 2007 | 09:55 AM
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which one is the most user friendly for someone that doesnt know how to do all that very well?
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Old Dec 22, 2007 | 10:28 AM
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That's kind of a broad question.

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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Old Dec 22, 2007 | 10:36 AM
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i was referring to EFI Live vs HP. I noticed EFI is much more expensive. Any certain reasoning?
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Old Dec 22, 2007 | 10:40 AM
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Originally Posted by NotthisSS
i was referring to EFI Live vs HP. I noticed EFI is much more expensive. Any certain reasoning?
Yes.
Getting results
Reading data
Extra features
End results
Data analysis

For the real reason, just read the first letter of each line.
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Old Dec 22, 2007 | 10:45 AM
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Man thats a ton of money. i dont understand why i am having all these problems when many people put race style headers on all day and dont have a car go into limp home mode.
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Old Dec 22, 2007 | 10:45 AM
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i would have got egr headers if i knew this would happen.
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Old Dec 23, 2007 | 06:47 AM
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Originally Posted by NotthisSS
i would have got egr headers if i knew this would happen.
Everyone who purchases race headers gets thier car tuned immediately. You need software to eliminate the codes caused by removing the air funtion, o2 removal, and to make the car run. You can either havae it tuned, or purchase/learn efilive or hptuners.
Good luck.
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Old Dec 23, 2007 | 07:15 AM
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Originally Posted by NotthisSS
Man thats a ton of money.
Tuning software, hardware, and services are no different than anything else automotive - you get what you pay for.

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.

Originally Posted by NotthisSS
i dont understand why i am having all these problems when many people put race style headers on all day and dont have a car go into limp home mode.
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 ???
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Old Dec 23, 2007 | 12:12 PM
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i appreciate all of your all's help. I think i will probably purchase the EFI Live. It seems the majority of people i have talked to like it best. I will check my coil packs and o2 wires and see whats up there. Once again thanks for the comments and advice. Ill let you all know how all turns out. Thanks.
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Old Dec 23, 2007 | 12:47 PM
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Please do let us know.

While you're in there, be sure to make sure all your injectors are plugged in tight.
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Old Dec 23, 2007 | 01:22 PM
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I put SLP headers on my other SS and it ran fine without a tune. Not perfect, but fine. Tuning helped lean it up a little. I agree with others, check to make sure you didn't unplug something else??

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
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Old Dec 23, 2007 | 01:27 PM
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I would say your 02 extentions you used for your headers are your problem.
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Old Dec 23, 2007 | 01:45 PM
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i bought the corvette 02 sensors that everyone says to get.
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Old Dec 23, 2007 | 01:46 PM
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Are you not using extentions? bad wiring or wires in the wrong pins on the harnesses could be the cause. I have seen a bunch that where bad...
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Old Dec 23, 2007 | 01:49 PM
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Nope, no extentions. i just bought the corvette ones bc they were long enough. I still havent deleted my rear 02 sensors or my EGR/AIR system.
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