cobrakilla

i am in the process of installing an MSD window switch,but i cant find the tach wire on a 99Z28. can someone please help me locate the tach wire. thank you.

CRASH 02

iTrader: (3)

Pin 10 on the red connector of your PCM. It should be a white wire.

Good luck
Jason

cobrakilla

cool, thanks a million bro.

LASTLS1

iTrader: (7)

You better send the unit in to msd so they can program it not to burn out your pcm! Trust me it was a pain to figure out. Call tech they will help you. no charge.

AZLS1

iTrader: (2)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by LASTLS1:
<strong> You better send the unit in to msd so they can program it not to burn out your pcm! Trust me it was a pain to figure out. Call tech they will help you. no charge. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Can you explain this? I have had mine on for a year, but I don't want to take any chances.

LASTLS1

iTrader: (7)

I was told by MSD tech that the window switch would burn out the pcm over time if you connect directly to the pcm! It has to be converted to a four volt square wave? Don't ask me! I don't know that much about it. I took their advice and sent it in. They did it for free. Good luck Andy