Joeyk94
I'm Awesome
Ok so I put long tube headers on my truck in march along with a 3 inch y pipe to a 3 inch flowmaster. I HAVE NOT TUNED IT YET. Ever Since then the truck only like to stay running if you leave the maf sensor and intake temp sensor unplugged. If you plug those in it starts running rough and if you try slowly revving it just falls on its face. It ran fine when it had the stock exhaust on it. Is this because the tune is off and doesn't have downstream o2 sensors?
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