robmustang201528
15 mustang gt302blown
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- #1
How do I tell if I'm running rich or lean from looking at the air/fuel gauge that the car comes with? Sometimes normal driving it reads in between 14.1 or 2 too 13.1 in that ball park. Waiting for my tune to come in. Check engine is on because i have longtubes and no tune with the stock air box. These r the codes that pop up. p0430 p0420. 485 miles on the motor. I just dont want anything to go wrong because I'm driving with the light on. Noticed my tail pipes were getting black at the bottom tip. Hopefully my tune will be here soon.
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