Electronic throttle hesitation - Pontiac GTO Forum
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post #1 of 18 (permalink) Old 02-02-2011, 06:52 PM Thread Starter
 
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Electronic throttle hesitation

I have a 06 gto its had what I would call a pretty signifigant hesitation from when you step on the gas to when the engine roars its not giving any codes. I tried cleaning the throttle and throttle body thats ok and is working fine. has anyone noticed that or had that issue resolved. I don't have anything to compare it to other than a 07- Z06 vette I was in drivers seat working the gas pedal. the electronic throttle on that was dead on just instantaneous response from pedal to engine. I'am not saying my $30 pontiac should be a $70 Z06. I just dont think its right or working properly.any help would be great thanks. Its the same cold or hot.6spd didn't know they made auto

Last edited by sheldon; 02-05-2011 at 04:31 PM.
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post #2 of 18 (permalink) Old 02-02-2011, 08:30 PM
 
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Is your GTO an auto?
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post #3 of 18 (permalink) Old 02-05-2011, 04:27 PM Thread Starter
 
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6spd 24000 mi I cleaned throttle body again but sprayed a little white lith at hinge points of throttle it seems a little better it still seems off though sheldon
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post #4 of 18 (permalink) Old 02-11-2011, 08:13 PM
 
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clean the maf also

<-- Guess which ones quicker?.....Nope! Not even close.
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post #5 of 18 (permalink) Old 02-14-2011, 12:16 PM Thread Starter
 
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Cleaned MAF sensor when I cleaned the throttle body & there is still hesitation. Maybe I should order electronic throttle for a same yr Z06 if it fits. I'm sure its cost prohibitive being an upgraded performance version Corvette. That alone makes it three times more at least.
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post #6 of 18 (permalink) Old 02-14-2011, 01:44 PM
 
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Do you have anything you can monitor with? Maybe you're getting knock, maybe your throttle is not registering WOT. You really need something to monitor what's going on. If nothing else, take it for a tune before guessing at stuff.
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post #7 of 18 (permalink) Old 02-20-2011, 01:43 AM
 
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I have the exact same problem sheldon. I have an 06, manual, only 10k miles, and since the time I bought her she has had the same hesitation you described. It's like there is a lag between when the ecu registers throttle pedal movement, and when the ecu starts moving the throttle blade. Easiest way to explain it is the ECU is sampling to slowly. Nobody else has noticed? Snap the throttle and you will notice it's not crisp. Would love to know how to fix this.
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post #8 of 18 (permalink) Old 02-23-2011, 05:51 PM Thread Starter
 
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How much is a tune & who does a good job ? I've seen a HP Tuners VCM Suite Tuning& Scanning Tool for around $500 would it be economical to buy one of these verses taking it in somewere. Is that a good brand tuner & or price or can anyone recomend something else I think if I take it in somewere its going to cost alot Im a old school mechanic never got into much of computer stuff for cars and Im a hack hunt n peck on my laptop sometimes wanting to just smash the thing! So are these tuners user friendly or what ? Boostinall I'll let ya know when I figure it out
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post #9 of 18 (permalink) Old 02-23-2011, 10:56 PM
 
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Quote:
Originally Posted by Mike_V View Post
Do you have anything you can monitor with? Maybe you're getting knock, maybe your throttle is not registering WOT. You really need something to monitor what's going on. If nothing else, take it for a tune before guessing at stuff.
You mean, have a look at live data. Even TPS can be off... if I remember correctly HPT registers stock TPS output some where beteween like ~6-88%, but the claim is that full 5 volt signal is a PCM reference to see if the circuit is working...
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post #10 of 18 (permalink) Old 02-23-2011, 11:53 PM
 
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Not a 100% shure, I think the throttle response can be adjusted thru HPTuners. My wifes G8 is the same way with the delay. I've driven 6QTS11OZ's GTO and his throttle response is instantous.



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