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Another CAI CEL problem #234585 Jul 27, 8:22pm Jul 27, 8:22pm
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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?

Re: Another CAI CEL problem [Re: Lyth0s] #234586 Jul 27, 8:26pm Jul 27, 8:26pm
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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

Re: Another CAI CEL problem [Re: sickcelica696] #234587 Jul 27, 8:32pm Jul 27, 8:32pm
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yeah its a problem with your MAFS... i bet you cleaned the IAT sensor and not the MAFS.

Re: Another CAI CEL problem [Re: spaztikid] #234588 Jul 27, 9:50pm Jul 27, 9:50pm
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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
Re: Another CAI CEL problem [Re: Easy_C] #234589 Jul 28, 9:33am Jul 28, 9:33am
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so will his problem go away?

Re: Another CAI CEL problem [Re: RookieGTS] #234590 Jul 28, 1:16pm Jul 28, 1:16pm
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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
Re: Another CAI CEL problem [Re: Easy_C] #234591 Jul 29, 1:02pm Jul 29, 1:02pm
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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?

Re: Another CAI CEL problem [Re: Lyth0s] #234592 Jul 29, 1:16pm Jul 29, 1:16pm
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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
Re: Another CAI CEL problem [Re: Easy_C] #234593 Jul 29, 3:29pm Jul 29, 3:29pm
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like with apexi's power fc?

Re: Another CAI CEL problem [Re: Lyth0s] #234594 Jul 29, 3:40pm Jul 29, 3:40pm
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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
Re: Another CAI CEL problem [Re: Easy_C] #234595 Jul 30, 6:22am Jul 30, 6:22am

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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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