u/TheKingxDream

D16Y8, Manual IACV but Auto transmission mounted with Auto ECU

Hi folks, I am finding out a lot about this Del Sol. At first, when I bought it, I was surprised there was a D16Y8 in there but couldn't get any information from the seller since they did not swap it in. Its had a plethora of issues and electrical hack jobs but overall it is a solid swap. Where I am stuck now is the RPMs bouncing.

I did all of the standard checks, smoke testing, tightening the FACV which helped an cleaned the IACV. I found that they actually had a block off plate installed between the intake and IACV to stop the revs from bouncing.

I'd like to avoid putting the plate back so my question is, is the manual style IACV paired withe the auto transmission and auto trans ECU causing this RPM surging?

ECU: 37820-P06-A50

IACV: Manual 2 pin version

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u/TheKingxDream — 1 day ago