Help with Tach Signal in Sunfire with 2.4 - Racing Forum

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Help with Tach Signal in Sunfire with 2.4
Monday, May 09, 2016 5:56 AM
I have found signal at PCM or from harness by engine cover. But the closet comparison to stock tach is 1000 rpm high. Any help?

Re: Help with Tach Signal in Sunfire with 2.4
Wednesday, May 11, 2016 3:50 PM
Ryan Price wrote:

I have found signal at PCM or from harness by engine cover. But the closet comparison to stock tach is 1000 rpm high. Any help?


I have gotten the RPM signal from the pink wire on the IDI cover, and currently getting it from a empty pin on the ECU. If you search the forum I belive I have a post asking about this some years back and the exact pin was given.



FU Tuning



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