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I recently rebuilt my 7AFE in my 94 Celica. Before the rebuild, the tachometer worked fine. After the rebuild, the tachometer no longer works. I have checked all of the wires going to/from the distributor and they are connected. I have watched Scanner Danner's video's on when he fixed his kids exact same car I have. And it looks like the grey wire on the 2 PIN connector on the distributor provides TACH signal. Is that correct? Can I use a volt meter to test this, and would I use the negative or positive lead to connect to this wire?
