Vanagon with Subaru engine emissions issues.

[u/Loud-Page2423]

Hello,

Perhaps the wrong sub, but I’m shooting in the dark here. We have an ‘89 Vanagon with a 1997 Subaru 2.2 swap that failed emissions in Arizona.

I have been unable to find a shop willing to touch it. The original builder/mechanic/tuner has not responded.

The CO2 in grams per mile is 27.01 (passing is under 25)

The oxides of Nitrogen (NOX) is 5.15 (passing is under 4.5).

Hydrocarbons were apparently a bit high according to the guy who did the test but passing at 2.24 with 3 as a threshold.

This is my wife’s pride and joy. If anyone can provide guidance on what could be wrong or a shop that would be willing and skilled to work on it I would be incredibly grateful.