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Joined: Aug 2004
Posts: 129
RedCeli
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RedCeli
2001 Silver Toyota Celica
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2001 Toyota Celica

Joined: Aug 2004
Posts: 129
Bakersfield, California
Feb 9, 12:14am - #395342 
Bad Idling?

I was just wondering if anyone else had this problem with their engine...

My engine has 49k miles on it and its an 01 GTS...

whenever I go 30mph or above and let the stick rest in neutral my rpm needle goes down smoothly but once it gets close to 1,000 it goes down to 800---700---600----then suddenly kicks back up to about 1,500 rpm...does anyone know what this problem might be...any suggestions?? I'm trying to figure out what it is and it's driving me crazy! any help?


Nandayo!
Joined: Mar 2003
Posts: 1,304
My Sixth Gear
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My Sixth Gear
2003 Spectra Blue Mica Toyota Celica
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2003 Toyota Celica

Joined: Mar 2003
Posts: 1,304
Chicago, Illinois
Feb 9, 12:29am - #395343 
u may need to clean the Idle Air Control Valve


If you want peace... Prepare for War
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Posts: 180
Superstuddc27
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Superstuddc27
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Joined: Oct 2004
Posts: 180
fullerton, ca
Feb 9, 12:36am - #395344 
DUDE i have that exact same problem man! It bugs the crap out of me...

does your car rev up a little bit everytime you shift? Like you're accelerating and then right when you push in the clutch (to go into the next gear).. RIGHT when you push in the clutch, the RPM jumps up about 500 RPM? The faster you push the clutch, the more it jumps. if i shift really really slow, slow enough to to revmatch, then it doesn't do it but yeah.. i dont know what the problem is.

Joined: Feb 2004
Posts: 753
BaTMaN_4
Senior Member
BaTMaN_4

Senior Member
2002 Toyota Celica GT

Joined: Feb 2004
Posts: 753
McAllen, TX
Feb 9, 1:11am - #395345 
Had that and cleaning my MAF sensor did the trick for me thumbsup

Joined: Sep 2003
Posts: 2,242
Lucky_317
Specialist
Lucky_317

Specialist
2000 Toyota Celica

Joined: Sep 2003
Posts: 2,242
Fontana, CA
Feb 9, 1:16am - #395346 
MAF or IACV are the usual suspects.


Best 60' 1.959 best 1/4 - 13.7 @ 101mph
Joined: Feb 2004
Posts: 11
Arcken
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Arcken
2003 Zaphir Blue Toyota Celica GT
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2003 Toyota Celica GT

Joined: Feb 2004
Posts: 11
Puerto Rico
Feb 9, 9:18am - #395347 
Where is the IACV in the engine bay for the 1ZZ?

Joined: Aug 2004
Posts: 129
RedCeli
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RedCeli
2001 Silver Toyota Celica
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2001 Toyota Celica

Joined: Aug 2004
Posts: 129
Bakersfield, California
Feb 9, 10:32am - #395348 
Where is the MAF or ICVA located in the 2zz?


Nandayo!
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Posts: 16
01gts_hedstash
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01gts_hedstash
2001 Red Toyota Celica
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2001 Toyota Celica

Joined: Sep 2003
Posts: 16
Cullowhee, NC
Feb 9, 10:53am - #395349 
maf is a square shaped sensor with two screws and should be slap in the middle of your Intake ( pretty much) the iacv is on the underside of the throttle body, and to get it off, you have to take that tb off. Which is why my iacv is still dirty, cause im lazy.

Joined: Dec 2002
Posts: 1,660
Grand-Touring-Dan
ECelica Staff
Grand-Touring-Dan
2001 Spec Blue Toyota Celica
ECelica Staff
2001 Toyota Celica

Joined: Dec 2002
Posts: 1,660
Houston, TX
Feb 9, 12:34pm - #395350 
sounds like you are pushing in the clutch with your foot still on the gas. Try taking your foot completely off the gas and then push in the clutch

Joined: Nov 2003
Posts: 13
twistedgts6
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twistedgts6
2000 Carbon Blue Toyota Celica GTS Tu
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2000 Toyota Celica GTS Tu

Joined: Nov 2003
Posts: 13
NY
Feb 9, 2:49pm - #395351 
Originally Posted by Superstuddc27
DUDE i have that exact same problem man! It bugs the crap out of me...

does your car rev up a little bit everytime you shift? Like you're accelerating and then right when you push in the clutch (to go into the next gear).. RIGHT when you push in the clutch, the RPM jumps up about 500 RPM? The faster you push the clutch, the more it jumps. if i shift really really slow, slow enough to to revmatch, then it doesn't do it but yeah.. i dont know what the problem is.


I have the same exact problem! even i keep my foot completly off the gas pedal the revs go up when i shift. I can't figure out what it is.


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