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I am about to install a piggy back on my gs430. I have the service manual for the 2005 gs300/gs430.
I went through the manual yesterday and realized that the ecu pin outs on both the 2005 gs300 and gs430 are nearly identical!!! My car is a 2002 but I assume it would be the same. Can anyone double check that for me, possibly Jeff? (sorry your pm box is full) I found very few differences between them.
I'm installing a haltech interceptor piggy back.
thanks
I have a GS400 one that's halfway complete, but no GS430 yet. I can make new ones when I have some spare time, it just takes me about an hour to draw these up. Check back in a day or two and I'll try to post it up if I have time.
Jeff Im getting close the point where I need to decide if I want to do my own wiring on my 2JZGTE VVTI swap on my 2001 GS430. Can I get you to email me a pinout diagram for me please? My email address is r.lopez805@icloud.com . Thanks!