horrable gas millage
horrable gas millage I got 3 codes.... P1441(2 times) which is EVAP and P0174 System too Lean (Bank 2)
i am going to be getting (race) headers and deleting the cats and rear o2 sensor.... will this fix most my gas millage issues? also is there any quick fix or cheap fix untill i get my headers?
i am going to be getting (race) headers and deleting the cats and rear o2 sensor.... will this fix most my gas millage issues? also is there any quick fix or cheap fix untill i get my headers?
Teching In
Joined: May 2005
Posts: 11
Likes: 0
From: Acworth, GA
The EVAP is just an emmisions thing to keep fuel vapor from venting, don't worry about that one. The O2's reading lean, the PCM compensates by dumping fuel. Often, this is caused by a misfire, so instead of the air being turned into carbon dioxide/monoxide, it just goes right through and the O2's real lean. Check for misfire history if you can and see what it says. A clogged injector on one cylinder will also cause it to run lean, causing it to dump fuel. My 97 Z28 is guzzling gas, and I have the lean O2 code but recently did a tune up and want to see what happens first.
