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Joined: Mar 2003
Posts: 7
MM2000GTS
New Member
MM2000GTS Aug 18, 1:46pm - #252537 
New Member

Joined: Mar 2003
Posts: 7
Mississauga, Ontario
Any Advice: Running Rich - CEL On Steady

Alright - has anyone got any advice for me on this situation? Any would be appreciated.

Mods: Blitz Short Ram Intake with K&N filter, breather filter in place on the "extra" hose from the stock airbox, HKS exhaust (its a 2000 GTS, by the way)

I was previously getting a fairly regular intermittent check engine light (CEL). So, I had it in to the Toyota dealer, and they told me the code read a "soft" running rich indication. I'm not really sure what the "soft" part meant, but they told me it wasn't something to worry about. That doesn't seem very logical to me, but whatever. Well, now the CEL is on full time, and the code read the same this past weekend. I've tried cleaning the K&N Air Filter, cleaning the MAF sensor and resetting the ECU, but it still persists. Any ideas? Perhaps the little breather filter needs replacing?

I've had spark plug replacement and fuel injector cleaner suggested already - does that sound like a possible fix?

Thx.

_ ______________________ _
2000 Liquid Silver GT-S
Joined: Jan 2004
Posts: 2,373
AZZKIKR
SHO - NUFF
AZZKIKR Aug 18, 2:03pm - #252538 

SHO - NUFF
2003 Toyota Celica GT

Joined: Jan 2004
Posts: 2,373
ATL GA
ok bro, for one, if you are running rich, then you are probably getting some fuel onto the cylinder walls (not fully combusting)...and in that event you should change your oil more often...also, rather than put a breather onto the extra hose from the airbox, you SHOULD PLUG IT WITH A SMALL SCREW!!! all the other Intake's come with a plug for this. I assume you are talking about the hose that went to the butterfly valve housing in the stock airbox (its the only left over hose after you install an Intake)...anyway, yeah, plug that fucker, rather than putting a breather on it, and reset your ecu, you should be fine thumbsup...if you still have trouble, post a pic of your engine bay if you can, and I'll see if I can see anything else thumbsup
Joined: Mar 2003
Posts: 7
MM2000GTS
New Member
MM2000GTS Aug 18, 3:11pm - #252539 
New Member

Joined: Mar 2003
Posts: 7
Mississauga, Ontario
Thanks for the advice - I'll give it a shot. Any additional suggestions/thoughts?

_ ______________________ _
2000 Liquid Silver GT-S
Joined: Nov 2003
Posts: 453
Jtultra
Senior Member
Jtultra Aug 18, 3:15pm - #252540 

Senior Member
2000 Toyota Celica

Joined: Nov 2003
Posts: 453
Marietta, GA
I have that problem too, but my O2 sensors are bad...

The 2ZZ god
Joined: Aug 2003
Posts: 399
SCOTT03
Member
SCOTT03 Aug 18, 3:50pm - #252541 
2000 Black Toyota Celica
Member
2000 Toyota Celica

Joined: Aug 2003
Posts: 399
Buies Creek/Sanford, NC
happened to me MAFS was dirty. Maybe MAFS is bad?

[Linked Image]
Joined: Jan 2004
Posts: 2,373
AZZKIKR
SHO - NUFF
AZZKIKR Aug 18, 4:39pm - #252542 

SHO - NUFF
2003 Toyota Celica GT

Joined: Jan 2004
Posts: 2,373
ATL GA
it could be all of these
Joined: Jun 2004
Posts: 908
GT2111
Senior Member
GT2111 Aug 18, 4:44pm - #252543 
2004 Red Toyota Celica GT
Senior Member
2004 Toyota Celica GT

Joined: Jun 2004
Posts: 908
He said he had cleaned his MAFC though.. It wouldn't be that.. Its probly but ^^^ (AZZKIKR) said.
Joined: Oct 2003
Posts: 1,154
beans
ECelica Jester
beans Aug 18, 5:17pm - #252544 
2000 white Toyota Celica GTS
ECelica Jester
2000 Toyota Celica GTS

Joined: Oct 2003
Posts: 1,154
Philadelphia, PA
Originally Posted by Jtultra
I have that problem too, but my O2 sensors are bad...


how many miles you have?
Joined: Sep 2003
Posts: 3,077
slidr
Specialist
slidr Aug 18, 9:30pm - #252545 

Specialist
2000 Toyota Celica

Joined: Sep 2003
Posts: 3,077
Saint Louis, MO
You can actually test your heated O2 sensors with a voltmeter.

Aqua Teen Hunger Force...number one in the hood, G
Joined: Nov 2003
Posts: 453
Jtultra
Senior Member
Jtultra Aug 19, 3:12am - #252546 

Senior Member
2000 Toyota Celica

Joined: Nov 2003
Posts: 453
Marietta, GA
get the code checked out by autozone, if it is the O2 sensor, I know a way to fix it

The 2ZZ god
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