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Joined: Apr 2004
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jenn1356
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jenn1356 May 13, 1:46am - #177705 

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2000 Toyota Celica GT

Joined: Apr 2004
Posts: 162
Kentucky
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?
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jenn1356
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jenn1356 May 13, 2:31am - #177706 

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2000 Toyota Celica GT

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Posts: 162
Kentucky
Now don't everybody answer all at once or anything... rofl
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Eman
Black Sheep
Eman May 13, 2:34am - #177707 

Black Sheep
2000 Toyota Celica GT

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818, CA
pretty common...clean ur MAF sensor...should solve things right up

Ima TuRD fa life
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Erick
Bread Fishing..
Erick May 13, 2:54am - #177708 

Bread Fishing..
2001 Toyota Celica GT

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Posts: 3,030
Bay Area, CA
^^^ yah agreed thumbsup i'll see if i can find the thread that says how you clean it grin

LNK
"you only need something when you know it exists..then it becomes a want"
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Erick
Bread Fishing..
Erick May 13, 2:57am - #177709 

Bread Fishing..
2001 Toyota Celica GT

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Posts: 3,030
Bay Area, CA
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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jenn1356
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jenn1356 May 13, 3:12am - #177710 

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2000 Toyota Celica GT

Joined: Apr 2004
Posts: 162
Kentucky
thanks! thumbsup
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xXMaGNuSXx
hookah-meister
xXMaGNuSXx May 13, 3:21am - #177711 
2000 Liquid Silver Toyota Celica GT
hookah-meister
2000 Toyota Celica GT

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Posts: 975
Smog City LA
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
Black Sheep
Eman May 13, 4:10am - #177712 

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2000 Toyota Celica GT

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818, CA
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 May 13, 6:53am - #177713 

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2000 Toyota Celica

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Eastern Ontario, Canada
^^^^ 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

**DONOTDELETE**
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Anonymous May 13, 7:04am - #177714 
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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 May 13, 1:43pm - #177715 

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2000 Toyota Celica GT

Joined: Apr 2004
Posts: 162
Kentucky
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
Senior Member
Justice May 13, 3:52pm - #177716 

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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
ThE iRoN mAiDeN
Gen7fan May 13, 4:40pm - #177717 
2003 silver streak Toyota Celica GT
ThE iRoN mAiDeN
2003 Toyota Celica GT

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Posts: 1,899
Maryland
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
intoxicated
silverOOgts May 13, 4:44pm - #177718 

intoxicated
2000 Toyota Celica GTS

Joined: Oct 2003
Posts: 520
DSM, IA
ive heard that k&n uses oiled filters and thats what trashes the maf, Is this true?

Where did my sig go? help me find it..........
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Gen7fan
ThE iRoN mAiDeN
Gen7fan May 13, 5:22pm - #177719 
2003 silver streak Toyota Celica GT
ThE iRoN mAiDeN
2003 Toyota Celica GT

Joined: Apr 2003
Posts: 1,899
Maryland
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.
Joined: Jul 2003
Posts: 500
GTSHYPR
Bruce Leroy
GTSHYPR May 13, 7:49pm - #177720 
2002 Spectra Blue Mica Toyota Celica GTS
Bruce Leroy
2002 Toyota Celica GTS

Joined: Jul 2003
Posts: 500
Salisbury, MD
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.
Joined: Apr 2004
Posts: 162
jenn1356
Member
jenn1356 May 13, 8:09pm - #177721 

Member
2000 Toyota Celica GT

Joined: Apr 2004
Posts: 162
Kentucky
yeah, I have a code reader, so I keep erasing it- thumbsup
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