I have a 2.2L cobalt, hence the section I put it in. The car was tuned for a fully bolted car. I have since sold all the aftermarket parts and now it's back to stock except the tune.

How far off is the AFR now and would the car be running richer or leaner than when it was bolted and tuned?

 

i would think richer since the air flow has been restricted again. the engine will still pull timing if somethings off so the tune should not be an issue at all.

 

Quit following me

Yeah that's what I was thinking. As long as it's richer i don't think it will be a problem.

 

the biggest tell-tale sign is how rich she runs just started. that however is not really going to work in cold weather as they have a tendency to run rich when trying to warm the block.

 

I could data log it for ya!

 

As much as I would like to know, i'd rather just get this car out of my sight