changed plugs slower?
Thread Starter
Joined: Aug 2007
Posts: 79
Likes: 1
changed plugs slower?
So I did a plug change last night from stock to ngk iridium IX's. Went out for a drive and the car feels like it has lost another 20 hp. 
Drove it again today and the same. Doesn't stumble or anything just feels slower. Any ideas?
Drove it again today and the same. Doesn't stumble or anything just feels slower. Any ideas?
Senior Member
Joined: Dec 2006
Posts: 1,339
Likes: 0
From: Sarasota, FL
Re: changed plugs slower?
Try this...
Originally Posted by CrossfireLTD
Welcome to the Forum!!!
Try reflashing your throttle...may be stuck in "Grandma Mode".
Copied from this thread:
https://www.crossfireforum.org/forum...9&postcount=17
The Throttle is "Drive By Wire" and adapts to your particular driving
style. Do a TBA Throttle body adaptation.
1. Get in your car, it doesn't matter if you close the door or not.
2. Turn the key to the on (not start) position, the position just before the starter
turns over.
3. Press the gas pedal to the floor with the key in the "on" position.
4. Hold the pedal to the floor for five seconds, then turn the key back
to the "off" position (don't remove the key), then release the gas
pedal.
5. Wait 2 mins. for a full alignment.
6. Drive the car as you always do.
Depending on your driving style, this may or may not be a big factor. I do a lot of city driving so
I noticed a big change after erasing my history. It is not hard to do this, just follow the instructions -
Key on, pedal down, 5 sec, key off pedal up, wait 2 minutes.
Keep the key in for the entire thing.
If this doesn't work, disconnect your neg. battery cable for 20 minutes. This will re-set the parameters in the drive-by-wire... Unfortunately it will delete your pre-set radio stations, clock etc. as well...
Try reflashing your throttle...may be stuck in "Grandma Mode".
Copied from this thread:
https://www.crossfireforum.org/forum...9&postcount=17
The Throttle is "Drive By Wire" and adapts to your particular driving
style. Do a TBA Throttle body adaptation.
1. Get in your car, it doesn't matter if you close the door or not.
2. Turn the key to the on (not start) position, the position just before the starter
turns over.
3. Press the gas pedal to the floor with the key in the "on" position.
4. Hold the pedal to the floor for five seconds, then turn the key back
to the "off" position (don't remove the key), then release the gas
pedal.
5. Wait 2 mins. for a full alignment.
6. Drive the car as you always do.
Depending on your driving style, this may or may not be a big factor. I do a lot of city driving so
I noticed a big change after erasing my history. It is not hard to do this, just follow the instructions -
Key on, pedal down, 5 sec, key off pedal up, wait 2 minutes.
Keep the key in for the entire thing.
If this doesn't work, disconnect your neg. battery cable for 20 minutes. This will re-set the parameters in the drive-by-wire... Unfortunately it will delete your pre-set radio stations, clock etc. as well...
Senior Member
Joined: Sep 2006
Posts: 1,717
Likes: 4
From: New Jersey
Re: changed plugs slower?
Originally Posted by sharptech
So I did a plug change last night from stock to ngk iridium IX's. Went out for a drive and the car feels like it has lost another 20 hp. Drove it again today and the same. Doesn't stumble or anything just feels slower. Any ideas?
Drove it again today and the same. Doesn't stumble or anything just feels slower. Any ideas?
Re: changed plugs slower?
Thread Starter
Joined: Aug 2007
Posts: 79
Likes: 1
Re: changed plugs slower?
I didn't gap them just put them in so whatever the gap is. I think it's .044"... sparkplugs.com stock number 5464. Dunno I am at work now but will try the reset mode thing when I get home. When I reset the throttle will I hear a beep or anything or just wait the 2 min?
Last edited by sharptech; Oct 23, 2007 at 04:16 PM.
Thread Starter
Joined: Aug 2007
Posts: 79
Likes: 1
Re: changed plugs slower?
regapped plugs didn't notice much of difference then I did that reset throttle thing and wow car feels much better, thank you 
... so what exactly does that do to the throttle?
... so what exactly does that do to the throttle?
Joined: May 2005
Posts: 203
Likes: 0
From: UK
Re: changed plugs slower?
Throttle is "fly by wire" in other words when you press the gas pedal the ecu detects it and then opens the throttle with a motor.
Car makers think it's a good idea to adjust the throttle response to match the driving type or style. They can change the amount the throttle opens for a certain amount of pedal travel or change the rate of opening.
The reset removes "learning" the car did, probably while you were in traffic or on a freeway and makes the response normal, makes you think, could it be tweaked more?
Personally I wish they didn't mess or as I have an auto they only messed when the switch near the stick was on W (never).
Car makers think it's a good idea to adjust the throttle response to match the driving type or style. They can change the amount the throttle opens for a certain amount of pedal travel or change the rate of opening.
The reset removes "learning" the car did, probably while you were in traffic or on a freeway and makes the response normal, makes you think, could it be tweaked more?
Personally I wish they didn't mess or as I have an auto they only messed when the switch near the stick was on W (never).
Thread Starter
Joined: Aug 2007
Posts: 79
Likes: 1
Re: changed plugs slower?
Originally Posted by malcb
Throttle is "fly by wire" in other words when you press the gas pedal the ecu detects it and then opens the throttle with a motor.
Car makers think it's a good idea to adjust the throttle response to match the driving type or style. They can change the amount the throttle opens for a certain amount of pedal travel or change the rate of opening.
The reset removes "learning" the car did, probably while you were in traffic or on a freeway and makes the response normal, makes you think, could it be tweaked more?
Personally I wish they didn't mess or as I have an auto they only messed when the switch near the stick was on W (never).
Car makers think it's a good idea to adjust the throttle response to match the driving type or style. They can change the amount the throttle opens for a certain amount of pedal travel or change the rate of opening.
The reset removes "learning" the car did, probably while you were in traffic or on a freeway and makes the response normal, makes you think, could it be tweaked more?
Personally I wish they didn't mess or as I have an auto they only messed when the switch near the stick was on W (never).
Joined: May 2007
Posts: 42
Likes: 0
From: Western N Carolina
Re: changed plugs slower?
Thank your Electronic Stability Program for the drive by wire. The ESP needs to be able to cut the throttle if the rear end gets out of shape. That can only happen with electronic throttle control.
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