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Celica gone haywire! #303750 Oct 19, 12:53am Oct 19, 12:53am
Joined: Feb 2004
Posts: 7
BC, Canada
1992 black Toyota Celica GT
oexel OP
New Member
1992 Toyota Celica GT
oexel OP
1992 black Toyota Celica GT
New Member
1992 Toyota Celica GT

Joined: Feb 2004
Posts: 7
BC, Canada
Celica gone haywire!
OK so I'm dead broke and my 1991 celica is going crazy on me. It idles at around 1500 rpm when warm AND waits 2-3 seconds after letting go of the throttle to drop the rpms. When the engine is cold if I just tap on the gas pedal, the rpm shoot right up and when the rpm drop the go down to about 800-900 and bounce right back up to idling at 1200-1500.

Makes driving a pain in the ass (it's a manual). Has this happened to anyone or any suggestions on what it could be? I have checked the vacuum lines, cleaned the throttle body, and no error codes appear. It's quite the riddle...

Re: Celica gone haywire! [Re: oexel] #303751 Oct 19, 1:42am Oct 19, 1:42am
Joined: Nov 2003
Posts: 1,367
Tacoma/Seattle, WA
2000 Silver Toyota Celica GT
10celica10
Who's yo Daddy?
2000 Toyota Celica GT
10celica10
2000 Silver Toyota Celica GT
Who's yo Daddy?
2000 Toyota Celica GT

Joined: Nov 2003
Posts: 1,367
Tacoma/Seattle, WA
Im not sure but i hope someone can help ya!

Re: Celica gone haywire! [Re: 10celica10] #303752 Oct 19, 5:08am Oct 19, 5:08am
Joined: Jan 2004
Posts: 2,373
ATL GA
AZZKIKR
SHO - NUFF
2003 Toyota Celica GT
AZZKIKR
SHO - NUFF
2003 Toyota Celica GT

Joined: Jan 2004
Posts: 2,373
ATL GA
CHANge your timing belt / chain!!!!!! and you may want to look into a new clutch

Re: Celica gone haywire! [Re: AZZKIKR] #303753 Oct 19, 5:10am Oct 19, 5:10am
Joined: Oct 2003
Posts: 3,038
Alexandria, VA
2000 Spectra Blue Toyota Celica
Clos
Specialist
2000 Toyota Celica
Clos
2000 Spectra Blue Toyota Celica
Specialist
2000 Toyota Celica

Joined: Oct 2003
Posts: 3,038
Alexandria, VA
^^^^^^ wat he said

Re: Celica gone haywire! [Re: Clos] #303754 Oct 19, 8:48pm Oct 19, 8:48pm
Joined: Sep 2004
Posts: 245
St. Paul, Minnesota
sxyimports125
Member
2001 Toyota Celica GT
sxyimports125
Member
2001 Toyota Celica GT

Joined: Sep 2004
Posts: 245
St. Paul, Minnesota
SEAFOAM the biiiotch grin

Re: Celica gone haywire! [Re: sxyimports125] #303755 Oct 19, 9:00pm Oct 19, 9:00pm
Joined: Jan 2004
Posts: 744
Freehold, NJ
2000 Spectra Blue Mica Toyota Celica
Blue_Bomber
Senior Member
2000 Toyota Celica
Blue_Bomber
2000 Spectra Blue Mica Toyota Celica
Senior Member
2000 Toyota Celica

Joined: Jan 2004
Posts: 744
Freehold, NJ
Bad throttle position sensor?

Re: Celica gone haywire! [Re: Blue_Bomber] #303756 Oct 19, 9:57pm Oct 19, 9:57pm
Joined: Jun 2004
Posts: 264
Boston
GT4
Member
1993 Toyota Celica Alltrac
GT4
Member
1993 Toyota Celica Alltrac

Joined: Jun 2004
Posts: 264
Boston
Check your ISC (Idle speed control) valve, have you tried to adjust the idle? and BTW, replacing timing belt or clutch will not fix the rough idle.


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93 ST185, 91 ST185 (sold), 99 Solara SEV6
Boston
Re: Celica gone haywire! [Re: GT4] #303757 Oct 22, 8:14pm Oct 22, 8:14pm
Joined: Feb 2004
Posts: 7
BC, Canada
1992 black Toyota Celica GT
oexel OP
New Member
1992 Toyota Celica GT
oexel OP
1992 black Toyota Celica GT
New Member
1992 Toyota Celica GT

Joined: Feb 2004
Posts: 7
BC, Canada
I dont think it's the throttle position sensor because even when unplugged the rpm's dont drop. My suspicion is that it has something the EGR system. Its definitely not the clutch or timing belt. I've looked everywhere for seafoam but seams impossible to find here in Vancouver, canada. I've got the car behaving much better after cleaning/replacing some hoses. I think a little seafoam would finish the job grin

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