I'm sure there's a way of doing it but none that has been identified on the boards. I have done one on a SC300 but when it came to the MKIV, I had to swap the tach altogether.There is a "work around" but it involves more than simply swapping out the NA Tach for a TT one.
I dont mean to threadjack but Im doing this also. so what if you use a TT ecm, will the NA tahc work? if not what do I have to do to make the NA tach work? my car is a 6speed also.
?? This IS what they're talking about, how would that be hijacking the thread?I dont mean to threadjack but Im doing this also. so what if you use a TT ecm, will the NA tahc work? if not what do I have to do to make the NA tach work? my car is a 6speed also.
Thats what I was under the impression of but Kirk is right. Here's the writeup copied and pasted from Clubna-t as posted by Captdale.The NA tach will not work with the TT ECM, you'll have a couple of options:
Replace the NA Tach w/ a TT Tach
MSD Tach adaptor 8920
Or Try the Mod above......
I may be mistaken, but you do not need to do any wiring aside from jumping the resistor if you are running a TT ECU and Harness. The person who wrote the "tutorial" was running TT ECU on an NA harness and 2JZ-GE.Where would you hook up the wire on a 97 tt harness ? Aristo ecu