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172 Posts
Discussion Starter #1
i have a 91 na-t
i am running a safc and a vpc
now i think i have the wrong chip for the vpc
i am runing the 440 stock chip
i think that chip puts out a karmen signal which i don't need
i need a chip that is going to put out a signal that the safc can convert
i know i am not venturing into undiscovered country here
someone please chime in and help me
 

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25psi Bliss
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1,446 Posts
the HKS VPC prom are programed for fuel injector size and whether or not you're using an FCon. If no FCon, then just use the appropriate chip equivalent to your injector size. Unfortunately, for the 7MGTE you're limited to either 440cc or 550cc.

How do you have the AFC wired in conjunction to the VPC?
The correct sequence is VPC -> AFC -> ECU, using Karman as the signal base.
 

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Discussion Starter #4
i am not running a 7mgte i have a 7mge turboed and i need a chip at isgoing to mimic the flapper door signal that the na is looking for
 
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