why run rich?

0 ⤊

my bmw 325is is running rich, i don't know why. I put a after market coil, intake and muffler, those are the only upgrades i did.
Can someone tell me why , how that happens and how to fix it.
please help me!!!!!!!!111

2007-02-08 12:07:27 · 2 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs

2 answers

The sensors don't know how to react to the extra airflow. Put your stock stuff back on. No matter what you say, you have only seen a 2-3 hp increase. It might sound nicer but thats it.

2007-02-08 12:16:54 · answer #1 · answered by paulgarrison20002000 2 · 0⤊ 0⤋

It's hard to diagnose, but I would think the intake was the culprit. The computer is over compensating for the added airflow. You may check for reprogramming chips.

2007-02-08 20:12:59 · answer #2 · answered by mad_mav70 6 · 0⤊ 0⤋