:::RHMT::: Real Home Made Turbo

General Category => Hybrid/Tech => Topic started by: clwtwizted on June 11, 2010, 10:08:47 PM

Title: Just started running rich.
Post by: clwtwizted on June 11, 2010, 10:08:47 PM

I have a 99 civic 4door that has been boosted for about 2 1/2 years. Its been tuned on the newest set up for a couple months. and the last 2 days it has been running rich as fuck. It usually cruised at 14.8-15.0 Now its running at 12.5 at all times and then goes all the way to 10.0 then sputters.  Is it the o2 that has gone bad, bad injectors?

Title: Re: Just started running rich.
Post by: crttaz on June 11, 2010, 10:14:23 PM

bad wideband?

Title: Re: Just started running rich.
Post by: jagojon3 on June 11, 2010, 11:29:04 PM

If it runs the same I would doubt the injectors are the issue. Check O2 sensor first, then wideband controller like bone said.

edit-oops just saw you said it sputters. Clogged cat?

Title: Re: Just started running rich.
Post by: clwtwizted on June 12, 2010, 02:41:03 AM

No cat. Ill try replacing the o2. I have a spare set of dsms ill swap out if that doesnt work. This shit is killing my gas  milage. Sorry. I meant to post this in the engine management section. My bad yalls

Title: Re: Just started running rich.
Post by: Joseph Davis on June 12, 2010, 09:52:07 AM

Jumped timing will do that, too.  Check your cam gearz if you've got them.

Title: Re: Just started running rich.
Post by: Minor Threat on June 12, 2010, 01:09:59 PM

Vac leak