obd0 - obd1 ???s speed sensor

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03-17-2005, 01:14 PM

anthony88

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Join Date: Jun 2003

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obd0 - obd1 ???s speed sensor

if i do this conversion & use a p28 will the ecu detect speed so that i can use launch control my car is an 88 hatch currently using a pr4

03-17-2005, 01:38 PM

rexracer

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Join Date: Jan 2003

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Re: obd0 - obd1 ???s speed sensor

If you are using your cable D trans you will need to change the speed sensor. Its mechanical in OBD0's and electrical in the rest.

03-17-2005, 02:00 PM

anthony88

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Re: obd0 - obd1 ???s speed sensor

so how does obd0(turbo edit) read speed for launch control

03-17-2005, 02:52 PM

Chris Harris

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Re: obd0 - obd1 ???s speed sensor

from what i know there is an output from the back of the guage cluster that goes to the ECU

03-17-2005, 02:55 PM

Rory

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Re: obd0 - obd1 ???s speed sensor

http://www.pgmfi.org/twiki/bin/view/...cleSpeedSensor

You are correct sir.

03-17-2005, 02:58 PM

Chris Harris

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Re: obd0 - obd1 ???s speed sensor

nice to know im right every now and then...thanks Rory

03-17-2005, 07:30 PM

TurboEF9

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Re: obd0 - obd1 ???s speed sensor

OBD0 to OBD1 conversion will not effect your VSS.

OBD0 = Tranny cable -> Dash Sensor -> Cluster -> ECU
OBD1 = Tranny Sensor -> Cliuster -> ECU

Either way, signal will still end up being at the ECU.

And TurboEDIT uses a VSS based fuel cut RPM rev limit to make launch control possible.