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Joined: Apr 2004
Posts: 74
Lyth0s
Member
Lyth0s Jul 28, 3:22am - #234585 
2002 Silver Toyota Celica GT
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2002 Toyota Celica GT

Joined: Apr 2004
Posts: 74
Southern California
Another CAI CEL problem

i know there is like a billon post with this exact same problem but here we go, basically my check engine light came on when i installed my CAI, so i cleaned the mafs and reset the ecu, now my cel comes on for like 20 min. and then will go off for like 5 days and then it will come on again. so i used my obd-II reader to see what was happening and it said that my "system is too lean". So that means that it is not getting enough fuel into the cylinder compared to air right? so what should i do to even it out a little bit?
Joined: Jun 2004
Posts: 1,298
sickcelica696
Specialist
sickcelica696 Jul 28, 3:26am - #234586 
2000 Liquid Silver Toyota Celica
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2000 Toyota Celica

Joined: Jun 2004
Posts: 1,298
Annapolis, MD
Thats probably a MAF problem, since the MAF is what tells your ECU what amount of fuel to give for what amount of air. Mine did that for about a week until the MAF and ECU got re adjusted to the new amount of air
Joined: May 2003
Posts: 5,346
spaztikid
dikitzaps
spaztikid Jul 28, 3:32am - #234587 
dikitzaps
1974 Toyota Celica

Joined: May 2003
Posts: 5,346
LA
yeah its a problem with your MAFS... i bet you cleaned the IAT sensor and not the MAFS.
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Posts: 476
Easy_C
Senior Member
Easy_C Jul 28, 4:50am - #234588 
2000 Spectra BLUE BABY! Toyota Celica
Senior Member
2000 Toyota Celica

Joined: Sep 2003
Posts: 476
Mass
cleaning it totally may or may not fix the problem, Injen and AEM are notorious for lean code CEL's...its just a biproduct of their Intakes

TPR Intake! - Injens high end with AEM's low end and NO BOGGING!
TPR EXHAUST! - Exhaust made 10.5 whp peak and 32 whp at 6300 on my car!!!
http://www.tuningprecisionracing.com/shop
Joined: May 2004
Posts: 2,979
RookieGTS
Boobie Vision
RookieGTS Jul 28, 4:33pm - #234589 

Boobie Vision
2000 Toyota Celica

Joined: May 2004
Posts: 2,979
925 Nor Cal
so will his problem go away?
Joined: Sep 2003
Posts: 476
Easy_C
Senior Member
Easy_C Jul 28, 8:16pm - #234590 
2000 Spectra BLUE BABY! Toyota Celica
Senior Member
2000 Toyota Celica

Joined: Sep 2003
Posts: 476
Mass
Probably not...like i said. Injens and AEM's are notorious for throwing lean CEL's

TPR Intake! - Injens high end with AEM's low end and NO BOGGING!
TPR EXHAUST! - Exhaust made 10.5 whp peak and 32 whp at 6300 on my car!!!
http://www.tuningprecisionracing.com/shop
Joined: Apr 2004
Posts: 74
Lyth0s
Member
Lyth0s Jul 29, 8:02pm - #234591 
2002 Silver Toyota Celica GT
Member
2002 Toyota Celica GT

Joined: Apr 2004
Posts: 74
Southern California
i cleaned the mafs really really good, and i still got the cel. so im going to try and find new fuel rails and bigger injectors, that will defintly fix the problem if i can make the mixture with the ecu's standereds again, and ill still have my power.

p.s. does anyone know how many cc's the gt fuel injectors are?
Joined: Sep 2003
Posts: 476
Easy_C
Senior Member
Easy_C Jul 29, 8:16pm - #234592 
2000 Spectra BLUE BABY! Toyota Celica
Senior Member
2000 Toyota Celica

Joined: Sep 2003
Posts: 476
Mass
the only way to correct the problem is with a fuel management system, otherwise the MAF will still report less air than what actually enters the Intake and boom lean code all over again.

TPR Intake! - Injens high end with AEM's low end and NO BOGGING!
TPR EXHAUST! - Exhaust made 10.5 whp peak and 32 whp at 6300 on my car!!!
http://www.tuningprecisionracing.com/shop
Joined: Apr 2004
Posts: 74
Lyth0s
Member
Lyth0s Jul 29, 10:29pm - #234593 
2002 Silver Toyota Celica GT
Member
2002 Toyota Celica GT

Joined: Apr 2004
Posts: 74
Southern California
like with apexi's power fc?
Joined: Sep 2003
Posts: 476
Easy_C
Senior Member
Easy_C Jul 29, 10:40pm - #234594 
2000 Spectra BLUE BABY! Toyota Celica
Senior Member
2000 Toyota Celica

Joined: Sep 2003
Posts: 476
Mass
correct. kinda an expensive fix...maybe you should try a different Intake wink

TPR Intake! - Injens high end with AEM's low end and NO BOGGING!
TPR EXHAUST! - Exhaust made 10.5 whp peak and 32 whp at 6300 on my car!!!
http://www.tuningprecisionracing.com/shop

**DONOTDELETE**
Unregistered
Anonymous Jul 30, 1:22pm - #234595 
Unregistered



first thing to do is check to see if you installed it properly, than clean the MAF sensor properly too(remember to pull the negative from the battery before doing it)
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