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Can someone plese tell me which wire is the VTM wire for the 03 Si
i know it the Blue/Blk for the EX.

 
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have you tried the vafc II manual on www.apexi-usa.com ? that "might" have an ecu diagram for the 03 si.

 
Rep Power: 375

try searching VTM wire, flyriceracer02 has solved the problem

Plus clubrsx has posted threads about the fix as well

 
Rep Power: 292

yeah, i found it its the second plug, second row, second pin.(this is for the K20 not the D17) Apexi says that you have to hook up this wire but the dont show it in the instructions.

 
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well for future reference (hope noobs search and finds this). the d17 ecu diagram is on the diy section here under vafc fix #2

 
Rep Power: 292

Uh, yeah I wasnt looking for the EX diagram i was looking the the Si (EP3) but it is the same wire. but thanks for you comment anyway's.

 
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I heard off of ephatch.com that Apex is making a VAFC II just for the Si at the end of Winter...I don't know why they would make one just for the Si, but who knows.

 
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ok i would like to clarify somthing i was the first one to post my results for finding the VTM signal wire on the fix thread thank you for your time adios... guess i should have started a new thread instead of posting on one. im a good sport though i just thought... well...sniff...sniff...i just thought i helped out.