Previous Thread
Next Thread
New Reply
Print Thread
Joined: Nov 2003
Posts: 753
xxmonkeyboixx
Senior Member
xxmonkeyboixx Jan 9, 12:54am - #78965 

Senior Member

Joined: Nov 2003
Posts: 753
OC KALI, USA
Tanabe Installed but...

Ok i just a Tanabe from a friend of mine and recently got it intalled. For some reason whenever i shift gears especially 1-2 or 3-4 it makes a popping sound. It also does that when i let go of the gas pedal on 3rd. confused Anyone kno why it does that and how i can fix it??? Other than the popping sound its sounds great...

[Linked Image]
Joined: Apr 2003
Posts: 144
xandrewx
Member
xandrewx Jan 9, 3:39am - #78966 

Member
2003 Toyota Celica

Joined: Apr 2003
Posts: 144
Cleveland, OH
The poping is normal every once in awhile. My Tanabe does it sometimes. But only really when im driving hard. Give it acouple days to see if it does it less.
Joined: Nov 2003
Posts: 753
xxmonkeyboixx
Senior Member
xxmonkeyboixx Jan 9, 4:48am - #78967 

Senior Member

Joined: Nov 2003
Posts: 753
OC KALI, USA
its already been a week and a half confused

[Linked Image]
Joined: Aug 2003
Posts: 6,372
Speed4TheNeed
Caleb
Speed4TheNeed Jan 9, 5:27am - #78968 

Caleb
2000 Toyota Celica

Joined: Aug 2003
Posts: 6,372
New Orleans, LA
this is fairly normal. a related thread:

https://www.celicahobby.com/ubbthrea...=true#Post33055
Joined: May 2002
Posts: 3,295
Steven
ECelica Staff
Steven Jan 9, 8:26am - #78969 
2001 Spectra Blue Mica Toyota Celica GTS
ECelica Staff
2001 Toyota Celica GTS

Joined: May 2002
Posts: 3,295
Riverside, CA
Don't worry about it
Joined: Jul 2002
Posts: 10,123
VSGTS14
05 WRB
VSGTS14 Jan 9, 9:07pm - #78970 

05 WRB
2005 Subaru WRX STi

Joined: Jul 2002
Posts: 10,123
Milford, NJ
yea it's fine..happens to me sometimes..sounds cool cool

SUBARU TECNICA INTERNATIONAL
Joined: Aug 2003
Posts: 2,926
celicaTRDgts
Specialist
celicaTRDgts Jan 10, 12:29am - #78971 

Specialist
02 Toyota Celica

Joined: Aug 2003
Posts: 2,926
Arizona
Originally Posted by Steven
Don't worry about it

[Linked Image]
Joined: Nov 2003
Posts: 242
hybridcelica
Member
hybridcelica Jan 10, 12:35am - #78972 
2000 silver/blue Toyota Celica
Member
2000 Toyota Celica

Joined: Nov 2003
Posts: 242
virgin islands
clean your maf sensor and reset the ecu. it would get less.
it will eventually come back but not as often.it has a lot to do with the outside temp.if you have a Cold Air Intake that would increase the popping when you let off the gas as well.if you happen to ask why,i can explain later.

HYBRID:resulting from the combination of two or more mechanically dissimilar origins!
"...... code":every man is a shadow,let him be treated as such,until proven otherwise by a show of character or code!
Joined: May 2002
Posts: 3,295
Steven
ECelica Staff
Steven Jan 10, 12:39am - #78973 
2001 Spectra Blue Mica Toyota Celica GTS
ECelica Staff
2001 Toyota Celica GTS

Joined: May 2002
Posts: 3,295
Riverside, CA
Ehh, it's front the rapid drop of RPM's. The rapid drop of rpm's are too fast for the fuel injected in the cylinders to be ignited. It is then pushed out of the exhaust valves and combusted there resulting in the pop.
Joined: Jan 2003
Posts: 190
n8mulder
Member
n8mulder Jan 10, 1:05am - #78974 

Member
2000 Toyota Celica

Joined: Jan 2003
Posts: 190
Cali
Back pressure = popping.
Don't worry it's ok and plus it sounds good.

{Live each day, like it's your last day on earth} <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
Joined: Nov 2003
Posts: 242
hybridcelica
Member
hybridcelica Jan 10, 1:53am - #78975 
2000 silver/blue Toyota Celica
Member
2000 Toyota Celica

Joined: Nov 2003
Posts: 242
virgin islands
might i add that it has to do with ignition timing,the temp.the maf is seeing,and the temp of the cylinder head,header and exhaust.without going into too much details,
the maf sends temp redings to the ecu and it controls fuel ratio along with how much air passes it,if its cooler it will cause the ecu to mix richer,the throttle position sensor along with maf and other sensor readings helps the ecu determin ignition timing,if the timing is higher before tdc, more advance,more of this richer mixture will be burnt(spark starts sooner) and if it is less advanced less will be burnt.when you are in the tank the ecu is saying give me everything,timing and the injectors are going full tilt,when you let your foot off the gas timing drops back,and since its electrical and the pulsing of the injectors even though electrical is part mechanical, (cause its the fuel preasure that actually causes the gas to flow) the electrical part will always be more accurate in starting and stopping and the mechanical part is less "transient"in response,so it lingers or stops a split second later.thus there will be unburnt fuel due to lack of advanced spark! causing unburnt fuel to exit the cylinder head into the manifold,it is this unburnt fuel that is ignited,it could be in the ports in the head,the manifold or the exhaust.that is why cleaning the maf and reseting the ecu helps with the popping,the ecu is very "smart" in the celicas when it is reset it seems to go to maximum advance then work its way down based on sensor inputs.it is this period when the ecu is gathering data that the popping seem to be quelled.and i'm not just talking,i had/have the popping king of exhausts the kazuma and i noticed it by experimenting with reseting the ecu after varying amt of miles.the ecu is smart and you dont even make maximum power after reseting it,its after a certain amt of miles usually 50 to 150 miles(for my car dont know about others)some people say after 2 3 days but i checked the actual miles.if anything needs to be cleared up ask first before you flame.(i can go into details)this site is supposed to be a place where "we" can "all" learn more about our cars, not to act like idiots(aint we all!)...pun wink

HYBRID:resulting from the combination of two or more mechanically dissimilar origins!
"...... code":every man is a shadow,let him be treated as such,until proven otherwise by a show of character or code!
Join the conversation - Register now or Sign in to add your comment


Moderated by  isaac 

Customize Your Toyota CelicaPrivacy 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, 2001-2016