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Joined: Apr 2004
Posts: 162
jenn1356
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jenn1356

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2000 Toyota Celica GT

Joined: Apr 2004
Posts: 162
Kentucky
May 12, 6:46pm - #177705 
who has a check engine light on after intake?

This is a continuation of a post I did earlier, but I'm just wondering how many of you had your check engine light come on when you put an aftermarket Intake on it? (i.e. Injen or AEM, ect.). The codes on mine are P0125 and P0171 (O2 sensor and engine coolant temp.). Anyone else have this problem?

Joined: Apr 2004
Posts: 162
jenn1356
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jenn1356

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2000 Toyota Celica GT

Joined: Apr 2004
Posts: 162
Kentucky
May 12, 7:31pm - #177706 
Now don't everybody answer all at once or anything... rofl

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Eman
Black Sheep
Eman

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2000 Toyota Celica GT

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818, CA
May 12, 7:34pm - #177707 
pretty common...clean ur MAF sensor...should solve things right up


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Erick
Bread Fishing..
Erick

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2001 Toyota Celica GT

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May 12, 7:54pm - #177708 
^^^ yah agreed thumbsup i'll see if i can find the thread that says how you clean it grin


LNK
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Erick
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Erick

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2001 Toyota Celica GT

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May 12, 7:57pm - #177709 
wooo whoo found it.. thumbsup

Cleaning the MAF Sensor


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LNK
"you only need something when you know it exists..then it becomes a want"
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Posts: 162
jenn1356
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jenn1356

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2000 Toyota Celica GT

Joined: Apr 2004
Posts: 162
Kentucky
May 12, 8:12pm - #177710 
thanks! thumbsup

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xXMaGNuSXx
hookah-meister
xXMaGNuSXx
2000 Liquid Silver Toyota Celica GT
hookah-meister
2000 Toyota Celica GT

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Smog City LA
May 12, 8:21pm - #177711 
I had the CEL go on even tho I disconnected the negative battery terminal before I started. Make sure all hoses and ports are plugged.

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Eman
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Eman

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2000 Toyota Celica GT

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818, CA
May 12, 9:10pm - #177712 
its amazing what a BIG difference it makes when ur MAF sensor is dirty...your throttle response get sooo fugged up..


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00GTShope
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00GTShope

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2000 Toyota Celica

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Eastern Ontario, Canada
May 12, 11:53pm - #177713 
^^^^ I've been thinking of doin that for ages. Lately everyone is talkign about cleaning the MAF. I have Injen RD cold air and have never had a CEL but I think I might do it anyway. confused


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May 13, 12:04am - #177714 
I just bought an Injen SRI and have the cel (p0171) light come on. it goes away than comes back sometimes and i've cleanend MAF, throttle body, ran fuel injector cleaner thorough, and cheked all hoses. confused

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jenn1356
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jenn1356

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2000 Toyota Celica GT

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Posts: 162
Kentucky
May 13, 6:43am - #177715 
I think the 0171 code is because of the Intake. If the Intake is cold-hence "cold-air Intake", it makes the computer think that there is a hole in the Intake so the check engine light will come on. If this is the case, the light will come on during cool nights. (too much cold air). It doesn't hurt the engine, it's just specified in the computer to tell you when something isn't "factory". I've driven mine like this for 2 years and it's been okay. I'm just angry because the computer is saying the O2 sensors are bad, and I just put brand new ones on them!

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Justice
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May 13, 8:52am - #177716 
I've had mine on since oct. i kept reseting the cpu but it came back on. so i gave up.

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Gen7fan
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2003 silver streak Toyota Celica GT
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Maryland
May 13, 9:40am - #177717 
Interesting that most of (not all) the problem posts are from Injen owners, one K&N in there. Is there less of a problem with AEM owners.

I wonder if the placement of the MAF sensor has something to do with it? On Injen and K&N the MAF sensor is fairly close to the throttle body, but on AEM this is not the case. AEMs placement of the sensor is much farther out on the pipe. hmmmmmmmmm.

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silverOOgts
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DSM, IA
May 13, 9:44am - #177718 
ive heard that k&n uses oiled filters and thats what trashes the maf, Is this true?


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Gen7fan
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Maryland
May 13, 10:22am - #177719 
Originally Posted by silverOOgts
ive heard that k&n uses oiled filters and thats what trashes the maf, Is this true?


I've read those posts to, I think those people are using to much oil, even if they don't know they are. TRD filter is made be K&N so it works the same way, I've never had a problem. You should use a small amount of oil and let it wick through, spot oil any missed areas, not go all crazy with it.

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GTSHYPR
Bruce Leroy
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2002 Spectra Blue Mica Toyota Celica GTS
Bruce Leroy
2002 Toyota Celica GTS

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Posts: 500
Salisbury, MD
May 13, 12:49pm - #177720 
If your CEL is still on you can try to disconect you battery for about 5-10min and your ECU will reset itself.


I'm gonna take your little Civic. Dust it off. Turn it sideways and stick it straight up you candy A*s.
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jenn1356
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jenn1356

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2000 Toyota Celica GT

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Posts: 162
Kentucky
May 13, 1:09pm - #177721 
yeah, I have a code reader, so I keep erasing it- thumbsup

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