Previous Thread
Next Thread
New Reply
Print Thread
Rate Thread
need help fast! CHECK ENGINE LIGHT CAME ON #230737 Jul 24, 4:49am Jul 24, 4:49am
Joined: May 2004
Posts: 300
Puerto Rico
2003 Silver Toyota Celica GT
Miketrd OP
Member
2003 Toyota Celica GT
Miketrd OP
2003 Silver Toyota Celica GT
Member
2003 Toyota Celica GT

Joined: May 2004
Posts: 300
Puerto Rico
need help fast! CHECK ENGINE LIGHT CAME ON
This morning the check enigne light came on, and the car doesnt have a year of use , the only thing i have installed is the AEM Intake, the car doesnt have a 1000 miles with use with the Intake and the check engine light came on.


Everything was running well and ok until the check engine light came on i have not reset the ECU, i dont know if is has something to do about it.
Please help guys my car is currently in the dealership.

Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: Miketrd] #230738 Jul 24, 4:57am Jul 24, 4:57am
Joined: Jun 2003
Posts: 2,863
St. George, UT
v3n0m
Specialist
2001 Toyota Celica GT
v3n0m
Specialist
2001 Toyota Celica GT

Joined: Jun 2003
Posts: 2,863
St. George, UT
Reset the ECU & clean your MAF. It's a commong problem w/aftermarket Intakes, so don't worry about it.

Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: v3n0m] #230739 Jul 24, 5:48am Jul 24, 5:48am
Joined: May 2004
Posts: 300
Puerto Rico
2003 Silver Toyota Celica GT
Miketrd OP
Member
2003 Toyota Celica GT
Miketrd OP
2003 Silver Toyota Celica GT
Member
2003 Toyota Celica GT

Joined: May 2004
Posts: 300
Puerto Rico
if i reset the ECU , do i need a code for the radio and the clock after resetting the ECU? where is the MAF sensor?

Here is a picture of my Intake...

1870128604-Picture 003.jpg
Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: Miketrd] #230740 Jul 24, 5:53am Jul 24, 5:53am
Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
QTRMLR_1
Specialist
2002 Toyota Celica
QTRMLR_1
Specialist
2002 Toyota Celica

Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
You don't need codes. MAF is by that right vertical hose crossing the pipe in the pic. It's the square thing actually screwed into the Intake pipe. Read the sticky thread on how to properly clean the MAF.


I get my kicks on EC.
Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: QTRMLR_1] #230741 Jul 24, 5:58am Jul 24, 5:58am
Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
QTRMLR_1
Specialist
2002 Toyota Celica
QTRMLR_1
Specialist
2002 Toyota Celica

Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
...sure a b*tch to get to, huh? tongue


I get my kicks on EC.
Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: QTRMLR_1] #230742 Jul 24, 7:45am Jul 24, 7:45am
Joined: Mar 2004
Posts: 530
Cali
2001 Black Toyota Celica
SquadOne
USJDM
2001 Toyota Celica
SquadOne
2001 Black Toyota Celica
USJDM
2001 Toyota Celica

Joined: Mar 2004
Posts: 530
Cali
Originally Posted by QTRMLR_1
...sure a b*tch to get to, huh? tongue


[Linked Image]
Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: SquadOne] #230743 Jul 24, 8:37am Jul 24, 8:37am
Joined: May 2004
Posts: 300
Puerto Rico
2003 Silver Toyota Celica GT
Miketrd OP
Member
2003 Toyota Celica GT
Miketrd OP
2003 Silver Toyota Celica GT
Member
2003 Toyota Celica GT

Joined: May 2004
Posts: 300
Puerto Rico
I just came back from the dealer and they reset 2 codes. code #442 and code #446, they said something about the gas tank, i don't know.

The good news is the engine light is off now, but because i don't want to see that light on again, i will clean the maf.

What do you use to clean up the maf sensor? and how do i reset the ecu??

Thanks guys

Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: Miketrd] #230744 Jul 24, 8:40am Jul 24, 8:40am
Joined: Jul 2004
Posts: 2,016
Ontario
H
Haulin_A_Doo
Specialist
Haulin_A_Doo
H
Specialist

Joined: Jul 2004
Posts: 2,016
Ontario
Loosen your gas cap & let it draw air for a second or two. I was told by Toyo that they have seen a few codes on it.

Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: Miketrd] #230745 Jul 24, 9:02am Jul 24, 9:02am
Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
QTRMLR_1
Specialist
2002 Toyota Celica
QTRMLR_1
Specialist
2002 Toyota Celica

Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
hmmmm...did they bother to explain the codes?

442: Evaporative Emission Control System Leak Detected (small leak)

446: Evaporative Emission Control System Vent Control Circuit Malfunction

This is from my Diagnostic Trouble Code Book that came with my OBD-II scanner:

Book
Terminology: PCM = Powertrain Control Module aka ECU
MIL = Malfunction Indicator Light aka CEL

Evaporative System (EVAP) Monitor - OBD II vehicles are equipped with a fuel Evaporative system (EVAP) which helps prevent fuel vapors from evaporating into the atmosphere. The EVAP system carries fumes from the fuel tank to the engine where they are burned during combustion. The EVAP system may consist of a charcoal canister, fuel tank cap, purge solenoid, flow monitor, lead detector and connecting tubes, lines and hoses.

Fumes are carried from the fuel tank to the charcoal canister via hoses or tubes and are stored in the charcoal canister. The PCM controls the flow of fuel vapors from the charcoal canisters to the engine via a purge solenoid, which opens a valve to allow engine vacuum to draw the fuel vapors from the canister into the engine where the vapors are burned. The EVAP Monitor checks for proper fuel vapor flow to the engine and pressurizes the system to test for leaks. The PCM runs this Monitor once per trip.

The EVAP Monitor is a "Two Trip" Monitor. If a fault is detected on the first trip, the PCM will temporarily save this fault in its memory as a Pending Code (the MIL will be off at this time). if the fault is detected again on the second consecutive trip, the PCM will command the MIL "On" and the code will be saved in it's long term memory.

-------------------- END ------------------------------


I hope this is nothing serious and doesn't come back since your vehicle is fairly new being a year old. I just brake disc cleaner to clean the MAF. Reset the ECU by unhooking the cable from the negative terminal of the battery and leaving it off for 10 minutes...you can try stepping on the breaks or turning on your lights...like on some makes it speeds up the reset...but I don't know about the celica. Just reconnect the cable to the negative terminal and make sure it's nice and tight for a good connection of course. If you want to do the "pull the fuse" method...I think I remember there's a thread somewhere with pictures on the right fuse to pull so you don't have to wait 10 mintues or so.

Your car may be a little shaky and rough once you start it but give it time since it has to relearn your mods that you have done to create the appropriate fuel curve.


I get my kicks on EC.
Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: QTRMLR_1] #230746 Jul 24, 9:04am Jul 24, 9:04am
Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
QTRMLR_1
Specialist
2002 Toyota Celica
QTRMLR_1
Specialist
2002 Toyota Celica

Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
Miketrd, how many times do you turn your gas cap after you fill up?


I get my kicks on EC.
Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: QTRMLR_1] #230747 Jul 24, 9:22am Jul 24, 9:22am
Joined: May 2004
Posts: 300
Puerto Rico
2003 Silver Toyota Celica GT
Miketrd OP
Member
2003 Toyota Celica GT
Miketrd OP
2003 Silver Toyota Celica GT
Member
2003 Toyota Celica GT

Joined: May 2004
Posts: 300
Puerto Rico
maybe 2 or 3 times

Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: Miketrd] #230748 Jul 24, 9:24am Jul 24, 9:24am
Joined: May 2004
Posts: 300
Puerto Rico
2003 Silver Toyota Celica GT
Miketrd OP
Member
2003 Toyota Celica GT
Miketrd OP
2003 Silver Toyota Celica GT
Member
2003 Toyota Celica GT

Joined: May 2004
Posts: 300
Puerto Rico
QTRMLR_1, In the dealer they said that i had the gas cap loosen or something like that, they did not care to explain what the codes means.

Thanks for the explanation of the codes.


Whats wrong with the gas cap???

Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: Miketrd] #230749 Jul 24, 9:33am Jul 24, 9:33am
Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
QTRMLR_1
Specialist
2002 Toyota Celica
QTRMLR_1
Specialist
2002 Toyota Celica

Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
well...if maybe you didn't turn it enough times one time after filling up, you had a gas vapor leak out of your cap triggering the malfunction and the CEL. This is a common thing that happens with not turning the cap at least 3 times.


I get my kicks on EC.
Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: QTRMLR_1] #230750 Jul 24, 10:03am Jul 24, 10:03am
Joined: May 2004
Posts: 300
Puerto Rico
2003 Silver Toyota Celica GT
Miketrd OP
Member
2003 Toyota Celica GT
Miketrd OP
2003 Silver Toyota Celica GT
Member
2003 Toyota Celica GT

Joined: May 2004
Posts: 300
Puerto Rico
Oh, ok, well they said the gas cap was loose, so i think that was the problem then, after what you said. Thanks for the info, helps me understand better my car.


I am going to take out the cable of the negative terminal to reset the ECU, does the radio will be reset to??, i mean, do i need a code to use the radio again or something?

Thanks man

Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: Miketrd] #230751 Jul 24, 10:11am Jul 24, 10:11am
Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
QTRMLR_1
Specialist
2002 Toyota Celica
QTRMLR_1
Specialist
2002 Toyota Celica

Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
nah, no codes to reset the radio...you'll just have to reset your clock and you'll lose your radio presets (again maybe)... not too bad.


I get my kicks on EC.
Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: QTRMLR_1] #230752 Jul 24, 10:51am Jul 24, 10:51am
Joined: May 2004
Posts: 300
Puerto Rico
2003 Silver Toyota Celica GT
Miketrd OP
Member
2003 Toyota Celica GT
Miketrd OP
2003 Silver Toyota Celica GT
Member
2003 Toyota Celica GT

Joined: May 2004
Posts: 300
Puerto Rico
Allright, thanks for everything!!

Re: need help fast! CHECK ENGINE LIGHT CAME ON [Re: Miketrd] #230753 Jul 24, 10:57am Jul 24, 10:57am
Joined: Sep 2002
Posts: 3,030
Bay Area, CA
Erick
Bread Fishing..
2001 Toyota Celica GT
Erick
Bread Fishing..
2001 Toyota Celica GT

Joined: Sep 2002
Posts: 3,030
Bay Area, CA
Cleaning the MAF Sensor

https://www.celicahobby.com/ubbthreads/thread.f_1862388016_0_collapsed_2__1.html

I used Carb and Choke cleaner from Valvoline happywink


LNK
"you only need something when you know it exists..then it becomes a want"
Join the conversation - Register Now or Log In to add your comment


Moderated by  isaac 

Member Spotlight
NuMiL0
NuMiL0
2000 Toyota Celica GT
Evansville, IN

Posts: 112
Joined: June 2003
Show All Member Profiles 
Recent Topics
Low idle and slow take off
by Wmillerjr. 11/17/2017 9:34 AM
OEM Floor Mats
by Mac_TheBeard. 11/16/2017 11:06 PM
Smoking after cleaning injectors
by CelicaSW88. 11/15/2017 11:03 AM
What Tail light is this?
by Hanate. 11/14/2017 7:37 PM
2001 Celica VVTI 140 Wheel Studs
by minos316. 11/11/2017 4:06 PM
Is This Transmission Normal??
by Bilster. 11/03/2017 9:25 PM
New Celica Owner
by Sean65. 11/03/2017 4:00 AM
Jerky 1-2 shift.
by KMcCallister6505. 11/01/2017 3:47 PM
Customize Your Toyota Celica Privacy Policy · About · Contact
Privacy Policy · About · Contact
CelicaHobby.com is an independent Toyota Celica enthusiast website. CelicaHobby.com is not sponsored by or affiliated with Toyota Motor Sales, USA, Inc. in any way. The Toyota and Celica names and logos are trademarks owned by Toyota Motor Sales, USA, Inc.
© CelicaHobby.com, 2001-2017
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Snapshot build 20171111)