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Old 02-02-2011, 02:30 AM
Dawnsdad Dawnsdad is offline
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Default Need OBD II pin info on 09 2.3

I ordered a VOLO chip for my 09 4cyl. Installation usually gets spliced into the wires behind the OBD II plug. I would rather do a less "invasive" installation, so I ordered a connector shell that I can just plug into the OBD plug. But I need to know which pins are populated and my vision is such that I will have a hard time getting down there and being able to see. Other than a dealer, is there any resource that I can use to find out which pins are active?

BTW, I am somewhat skeptical as to whether the chip will give me any performance improvement. I will be glad to post my findings after 3-4 tanksfull.
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Old 02-02-2011, 03:01 AM
mickblock mickblock is offline
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Default Re: Need OBD II pin info on 09 2.3



This is a generic diagram.

edit -- I've never heard of a chip that plugs into the diagnostic connector under the steering wheel. Are you sure you don't mean "PCM" connector on the rightside firewall under the hood?
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Last edited by mickblock; 02-02-2011 at 03:11 AM.
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Old 02-02-2011, 10:11 AM
Dawnsdad Dawnsdad is offline
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Default Re: Need OBD II pin info on 09 2.3

Thanks for your response.

"Device" might have been a better term to use, although the company says "chip". Supposed to give better performance/mpg. Some people have reported significant improvement, some no change. I don't want to be a victim of the placebo effect, so I like to run several tanks full for a test. Their installation instructions say to splice into the wires in the back of the connector. I am concerned about possible warranty issues, so I want to make it "plug-n-play". Their website is at http://yhst-19807630266082.stores.yahoo.net/

Like I said above, I am a bit skeptical but I try to keep an open mind. It always seems that both sides of an issue like this are usually very passionate about their side. Some will say "works great" and some will say "scam". Neither side is necessarily lying, may just have different observations. So I like to see for myself. Enthusiasts often like to drive 50-100 miles and then draw their conclusions. Such a small data sample is subject to too many variables to be useful. Even 1,000 miles is a small sample but, obviously, much more reliable than 50. I put over 15,000 miles on a device called Platinum Fuel Saver. I got no improvement at all but others have reported good gains. On the other hand, I tried a mod called the Gadgetman Groove on a 94 Ranger and got about 15% better mpg. Same with HHO. Got about 15% better mpg in a 96 Dodge halfton.

Last edited by Dawnsdad; 02-02-2011 at 10:15 AM.
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Old 02-02-2011, 10:26 AM
mickblock mickblock is offline
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Default Re: Need OBD II pin info on 09 2.3

Anything plugged into that diagnostic port can only talk to the "diagnostic executive" program in the PCM to retrieve information. It can't send engine management commands. I could be mistaken but everything that occurs at that port is "after the fact" data.
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Old 02-02-2011, 12:12 PM
rwenzing rwenzing is offline
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Default Re: Need OBD II pin info on 09 2.3

BBB rating = F.

http://www.bbb.org/arkansas/business...#ratingdetails
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