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Joined: Apr 2004
Posts: 74
Member
2002 Toyota Celica GT
Member
2002 Toyota Celica GT
Joined: Apr 2004
Posts: 74
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
Specialist
2000 Toyota Celica
Specialist
2000 Toyota Celica
Joined: Jun 2004
Posts: 1,298
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: 5,342
dikitzaps
1974 Toyota Celica
dikitzaps
1974 Toyota Celica
Joined: May 2003
Posts: 5,342
yeah its a problem with your MAFS... i bet you cleaned the IAT sensor and not the MAFS.

Joined: Sep 2003
Posts: 476
Senior Member
2000 Toyota Celica
Senior Member
2000 Toyota Celica
Joined: Sep 2003
Posts: 476
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!!!

Joined: May 2004
Posts: 2,971
Boobie Vision
2000 Toyota Celica
Boobie Vision
2000 Toyota Celica
Joined: May 2004
Posts: 2,971
so will his problem go away?

Joined: Sep 2003
Posts: 476
Senior Member
2000 Toyota Celica
Senior Member
2000 Toyota Celica
Joined: Sep 2003
Posts: 476
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!!!

Joined: Apr 2004
Posts: 74
Member
2002 Toyota Celica GT
Member
2002 Toyota Celica GT
Joined: Apr 2004
Posts: 74
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
Senior Member
2000 Toyota Celica
Senior Member
2000 Toyota Celica
Joined: Sep 2003
Posts: 476
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!!!

Joined: Apr 2004
Posts: 74
Member
2002 Toyota Celica GT
Member
2002 Toyota Celica GT
Joined: Apr 2004
Posts: 74
like with apexi's power fc?

Joined: Sep 2003
Posts: 476
Senior Member
2000 Toyota Celica
Senior Member
2000 Toyota Celica
Joined: Sep 2003
Posts: 476
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!!!

Anonymous
Unregistered
Anonymous
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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