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420A SPA Turbo fuel management unit rich idle

jesse12345

Supporting Member
262
159
Jul 30, 2014
Down the block, Minnesota
Hey all so I'm using the SPA Turbo fuel management unit, I think max is 14:1 on it and it works great, I'm running real rich at idle and my fuel pressure at idle is around 29 lbs. Have any of you tried that unit out yet? I know I need to pick up a megasquirt but I'm running low boost for now just trying to enjoy the car. I have a new front and rear o2 sensor on the way, my front one is new already but I'll just snag another new one just to make sure.
 

jesse12345

Supporting Member
262
159
Jul 30, 2014
Down the block, Minnesota
I'm running a 340lph fuel pump its on stock injectors and the afrs hit 11-10 at idle it runs pretty smooth so I don't know what the deal is.
 
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