ECU Pinouts, VTEC wiring, & ECU VTEC Conversion Information -

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Old 01-29-2009, 12:02 PM
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Default ECU Pinouts, VTEC wiring, & ECU VTEC Conversion Information

ECU Pinouts

OBD-I (1992-1995)

OBD-IIa (1996-1998)

OBD-IIb (1999-onward)

All Taken From

VERY detailed ECU pinout chart for all OBD versions

Wiring VTEC

OBD-0 (Pre-1992)

OBD-I (1992-1995)
(D6 and A4 also apply to any D series VTEC engine that you will be using an OBD1 ECU with)


ECU VTEC Conversion
If you have an OBD-I P05 or P06 ECU, you can convert the ECU to be essentially a P28, thus giving your ECU the ability to use VTEC.
This is useful when swapping a VTEC engine into your non-VTEC car and you don't want to buy a new ECU.

If you are not good at soldering, I do not recommend doing this. Soldering on an ECU is more intricate than soldering wires together or soldering on a simple circuit board. If you do it yourself, you will need a good soldering iron, preferably one with temperature adjustment. Also recommended is a solder sucker.

If you do not want to do it yourself, contact or another tuning company to arrange them to do it for you.

Parts List:
VTEC Conversion Kit

ECU Chipping Kit

VTEC Conversion Kit Installation Guide

ECU Chipping Kit Installation Video

ECU Chipping Kit Installation Diagram


OBD-II ECU Related Swap Info

Last edited by trustdestruction; 02-24-2010 at 03:05 PM.
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