I have just lifted my 2005 Sport 4Runner 4.7L V8 4 1/2 inches {3" Cornfed suspension and a 4Crawler 1 1/2" body} and installed BFG 285/70/17's on Incubus 17x9" rims. The speedo is now "off" by approx 7%. I now would like my ECM to know what speed that I am REALLY traveling for purposes including but not limited to: speedpmeter accuracy, odometer accuracy, mileage computer accuracy, transmission shift points, fuel/air mixture, anti lock braking {I am not sure but this may have its own input from each wheel independent of the speed sensor}, skid control, etc. The only mods that I can find are UNI CHIP's, and it is priciy at $900 but makes for all kinds of tweeking ability and Dakato Digital has a device for $79 that installs bewtween the speed sensor and ECM that just changes signal through the setting of dip switches. No one else covers the new in 2005 4.7L V8.

My questions are these if anyone is good enough to have some info:

1. Where is the speed sensor on a 2005 with a 4.7L and what color wires control what?

2. Does the speedo being "off" effect anti-skid and AVS or do they get there inputs somewhere else like at each wheel and would that info be accurate with the larger tires if it is taken at each wheel?

3. Is there any other devices on the market that will cure this issue?

4. Has any one installed the Unichip device and is it worth the money?

Thanks in advance and I would like to publicly thank Jason at BURTMAN INDUSTRIES 928-252-6199 - THIS GUY GOES OUT OF HIS WAY BIG TIME TO HELP YOU. He sold me what I needed to make it happen plus was full of information regaurding lifting my TOY and ALWAYS answered my calls. Cornfed is also great help in the suspension arena. I think everyone knows Rodger at 4Crawler, great help.

 

If it's anything as complicated as my 01 Runner good luck. I got a Dakota Digital unit and couldn't find a way to connect it. Mine only has one speed sensor in the transmission that sends the signal to a whole bunch of control modules, VCS, ATRAC, ABS, ECM, and a bunch of other things. I couldn't figure out how to just correct the speedo without affecting everything else. Mines off by 11%, so I just do a 10% correction in my head and find that's close enough.

The good thing is putting on larger tires won't make any difference to the ABS or VSC. They don't know that you've put bigger tires on and that the vehicle is actually going faster then they think. The wheel sensors only count rotations not speed so the computer is dumb and happy, and still thinks the vehicle is still going at the speed the trans sensor says it is.

 

Glad to help ya out. I know you were looking to get your pictures hosted, so I resized them and put them up for ya. Added the Burtman stamp to them so they don't end up on ebay, hehe.

 

Nice 4R. Do you need spacers for your wheel w/33".

 

off topic but, Wow that looks good!

 

Dang! I now have a new respect for 4th gens!

 

No spacers - wheels are offset 1 inch more than normal and are 9 inches wide.

 

Thanks for the info. I just emailed Dakota Digital with a wiring schematic for the speed sensor on a 2005 and requested they instruct me before I buy. We'll see what happens.

 

Any response from DD?

 

How's the truck going?