%META:TOPICINFO{author="b16a2" date="1169907900" format="1.0" version="1.1"}% %META:TOPICPARENT{name="NonVtec-To-Vtec"}%

Use this method if you install a 5050s in IC14 and you get a MIL code 21.

STEP 1 modify and install the VTEC parts as normal but stop at the installation of IC14

STEP 2 install the 5050s in the IC14 position and do not solder pin 4 of the 5050s

STEP 3 on the PCB of the ECU bridge pads 2 and 4 ( do not bridge the legs of the 5050s )

STEP 4 get a 820R resistor and solder 4cm of wire to one side and solder the other end of the resistor to the emitter of Q102 ( as a 5v ref )

STEP 5 solder the other side of the wire to pin 4 of the 5050s, you might want to trim back the leg a bit so it doesn’t stick out to much.

and thats it, enjoy your VTEC

I tested a ECU with this method on the Engine Simulator in VTEC for over 5 minuits continuously and it did not mis a beat and nothing got to hot.

link to thread http://forum.pgmfi.org/viewtopic.php?t=12672

cheers

John

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