today I installed a grounding kit it had sitting in my garage for a while, I also checked my spark plugs on the driver side. So I took off the mass air flow sensor to get to the plugs. Put everything back, turned on my car and I was running lean 16-17.5 at idle

yes I did disconnect my battery before the install
reset my ecu already
No Service Engine soon Light On

took it for a drive around the block, still no engine light on runs good when the gas pedal is pressed. help!

Vortech
have ecu reflased
utec
aem a/f gauge

 

possibly you're getting a leak where you removed the MAF...unmetered air may be getting into the intake. double check all the couplings.

 

^^^ Thats what I was saying at first.

 

thanks Will and Daniel