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Blue wire and FCD...

Old 05-19-06, 12:53 AM
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Blue wire and FCD...

Looking at getting a SAFC2 for my rex. Ive read all about the s4 tsp issues, and running off the boost sensor instead of throttle %. My question is, do i tap both the throttle % and pressure wire (blue) BEFORE the fcd? i want my afc to read boost accuratly, because im not sure that my gheto autometer does...
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Old 05-19-06, 01:59 PM
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The Autometer mechanical boost gauge should be right off the IM, so it's gospel.

You want the gray wire tapped after the boost sensor & before the FCD, so it sees the full range of signal.

I tapped the blue wire in after the FCD, so I can verify the FCD clamp point.

You could even tap the blue wire to any 0-5volt signal you want to monitor. (intake air temp for example)
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