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2000 GTS, No Throttle Response #191357 Jun 3, 2:07pm Jun 3, 2:07pm
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florida
1986 White Toyota Celica mookie60 OP
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florida
2000 GTS, No Throttle Response

First time posting!
Thanks to all who can offer a suggestion.

My friend recently got a used 2000 GTS (60k miles) from a toyota dealer. Intermittently, when the throttle pedal is pressed, there is no response from the engine at all - just sits at idle. After a few seconds and a few presses of the pedal (which feel normal) the engine will begin to respond normally. It does not seem to matter whether the engine is warmed-up or not.

The dealer replaced the mass air flow sensor, under the "toyota certified" guarantee. The problem persists and now the service dept says they will not perform any further service.

any suggestions?

Thanks
John

Re: 2000 GTS, No Throttle Response [Re: mookie60] #191358 Jun 3, 2:24pm Jun 3, 2:24pm
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2001 Spectra Blue Mica Toyota Celica GTS Steven
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Steven
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Mine use to do the same thing and this is what I did to stop that delayed throttle response:

1) Lucas Fuel Injector cleaner
2) (4) New Denso Iridrium Spark Plugs from www.sparkplugs.com and anti-seize lubricant for the plug threads
3) Tighten throttle cable
4) Clean the air canal of the mass air flow sensor.
5) Reset ECU.

Re: 2000 GTS, No Throttle Response [Re: Steven] #191359 Jun 3, 2:26pm Jun 3, 2:26pm
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Macomb IL
Brian63
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Brian63

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Mine did that before I bought it and the dealer replaced the sensor and now its fine. I would go back to the dealership and bitch smack someone

Re: 2000 GTS, No Throttle Response [Re: Brian63] #191360 Jun 3, 2:28pm Jun 3, 2:28pm
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2001 Spectra Blue Mica Toyota Celica GTS Steven
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Steven
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The spark plug part # for the Denso Iridriums is SK20R11 on www.sparkplugs.com

Re: 2000 GTS, No Throttle Response [Re: Steven] #191361 Jun 3, 3:40pm Jun 3, 3:40pm
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florida
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Steven,

is the "canal" part of the sensor, or is that just the top of the air cleaner housing? was there obvious deposits/built-up that could have effected the sensor?

Re: 2000 GTS, No Throttle Response [Re: mookie60] #191362 Jun 3, 4:31pm Jun 3, 4:31pm
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2001 Spectra Blue Mica Toyota Celica GTS Steven
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Here are some instructions on how to clean your mass air flow sensor: https://www.celicahobby.com/ubbthreads/thread.f_1862388016_0_collapsed_2__1.html

Re: 2000 GTS, No Throttle Response [Re: Steven] #191363 Jun 3, 6:18pm Jun 3, 6:18pm
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florida
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florida

I'm sure this sensor will be worth taking a look at, but the dealer has already replaced it ... so unless there's a short in the plug/wire, it's probably something else. This thing doesn't just hesitate, it doesn't budge off idle when this occurs.

Is this correct? - If the engine's ecu does not get a signal indicating additional airflow (due to opening of throttle plate), then additional fuel will not be delivered ... right? hmmm, maybe that plug is worth checking.

thank you
john

Re: 2000 GTS, No Throttle Response [Re: mookie60] #191364 Jun 3, 7:18pm Jun 3, 7:18pm
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Lafayette, LA
DiabloGTS
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it's the MAF sensor.

It's probably dirty, clean it and change the plugs, viola.

Happened to me, I did guides for both spineyes


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Re: 2000 GTS, No Throttle Response [Re: DiabloGTS] #191365 Jun 4, 6:55am Jun 4, 6:55am
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SSCarbonGTS
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Originally Posted by DiabloGTS
it's the MAF sensor.

It's probably dirty, clean it and change the plugs, viola.

Happened to me, I did guides for both spineyes


I second that ! thumbsup


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Re: 2000 GTS, No Throttle Response [Re: SSCarbonGTS] #191366 Jun 4, 7:24am Jun 4, 7:24am
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florida
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florida

I'm encouraging my friend to clean it herself, rather than putting up with crap from the dealer. I'll post the results when known.

Thanks to all.

Re: 2000 GTS, No Throttle Response [Re: mookie60] #191367 Jun 4, 8:27am Jun 4, 8:27am
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Saint Louis, MO
slidr
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Also, it could be a stick throttle plate, or the throttle body could be obstructed. Spray a little carb cleaner in there, and get in there as far as you can with a rag and wipe it clean.

Also, make sure that all hoses that go to the air box are secured, and make sure that there are no cracks or leaks in them. Your focus should be around the throttle body itself, and the air box. If the MAF sensor was replaced, then perhaps that's not the problem, unless your dealer didn't really replace it.


Aqua Teen Hunger Force...number one in the hood, G
Re: 2000 GTS, No Throttle Response [Re: slidr] #191368 Jun 4, 9:47am Jun 4, 9:47am
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NC
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what kind of cleaner would be good to clean you MAF?

Re: 2000 GTS, No Throttle Response [Re: Solemn] #191369 Jun 4, 12:49pm Jun 4, 12:49pm
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Riverside, CA
2001 Spectra Blue Mica Toyota Celica GTS Steven
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electronics cleaner or non-cholorinated (sp?) brake cleaner spray

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