Solution: Speedo calibration, details inside Options

[snapshotgt]

It looks like my speedo is reading on the high side. I am using the e153 tranny out of a 99 Solara. I also have bilstein struts, tein springs and 7th gen GTS wheels with 205/50/16 tires.

Four sources of evidence of possibly reading high:

1.) GPS is reading ~10mph slower

2.) OBDII reader from the solara is reading ~5mph slower

3.) I can be crawling at a snails pace and it reads obviously high

4.) When slowing down to a stop, needle can make un-flowing drops down in speed, does not look very accurate.



Please post your thoughts and suggestions. I'm looking to fix this and get it as accurate as possible. Anyone running with a e153 tranny swap please post your experience. Thanks-

[RocketScott]

http://www.healtech-electronics.com/

Google is you friend.

Most bikes that they sell kits for have three wires for the speed sensor. The Celica has two. The manual shows the speed sensor is a blue wire with white stripe going to ECU connector E (dark grey 12 pin) at pin #11. It also shows a single connector somewhere between the ECU and the speed sensor. If you can find that inside the car that would be the best place to connect. Even better if you could get that connector through Toyota. Healtech would probably make you the harness.

The Speedo Healer is pretty simple in function. You have to calculate how far off your current speedometer is and program that into the unit. GPS works really well for finding the correction factor. On my R1 I used the calculator they have online that takes into account wheel size, final gearing, and a bunch of other factors. Seems to be right on.

I just emailed Healtech to see if they can make something work for our cars. I'll post what I hear back.