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Idle too high after Hyperground wire install. #138208 Mar 28, 7:05pm Mar 28, 7:05pm
Joined: Dec 2003
Posts: 487
Portland, Oregon
GTS2003BLK OP
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2003 Toyota Celica
GTS2003BLK OP
Senior Member
2003 Toyota Celica

Joined: Dec 2003
Posts: 487
Portland, Oregon
Idle too high after Hyperground wire install.
Finally got around to installing my set of Hyperground wires. On first start I noticed right away that my idle was too high (around 2K) but I figured since I had removed the battery during the wire install that maybe the computers had reset and where trying to adapt to my Intake and exhaust again.

So I took a twenty minute drive on the highway, hit lift a few times and drove home, the idle settled down a bit to around 1.3K but still about 300rpm higher than before I put the wires in.

Dose this sound right behavior sound normal? How long dose it take for the computers to adapt to changes?

Overall Im happy with the mod, not a huge power increase but definitely noticeable particularly in the 3 to 5K range, 7 to 8K feels stronger as well. Just concerned about the high ible.

Re: Idle too high after Hyperground wire install. [Re: GTS2003BLK] #138209 Mar 28, 7:06pm Mar 28, 7:06pm
Joined: Aug 2003
Posts: 6,371
New Orleans, LA
Speed4TheNeed
Caleb
2000 Toyota Celica
Speed4TheNeed
Caleb
2000 Toyota Celica

Joined: Aug 2003
Posts: 6,371
New Orleans, LA
when i installed my b&m shortshifter my car did the same thing. it idled at 2k rpms, then back down to about 1.3rpms, and now its the normal 700 rpms.

so, it may work its way back down. however, you can always injust the throttle cable (visit the installs section) thumbsup

Re: Idle too high after Hyperground wire install. [Re: Speed4TheNeed] #138210 Mar 28, 7:07pm Mar 28, 7:07pm
Joined: Aug 2003
Posts: 6,371
New Orleans, LA
Speed4TheNeed
Caleb
2000 Toyota Celica
Speed4TheNeed
Caleb
2000 Toyota Celica

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New Orleans, LA
^^ adjusting the throttle cable install can be found here:
ecelica.com: adjust throttle cable thumbsup

credit isaac for the post

Re: Idle too high after Hyperground wire install. [Re: GTS2003BLK] #138211 Mar 28, 7:13pm Mar 28, 7:13pm
Joined: Feb 2004
Posts: 89
ohio
hucke150
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hucke150
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ohio
unhook your battery again for about a minute than hook it back up. start your car and let it idle for about 5 minutes with out touching the idle. this usually gets the ecu to reset nicely

Re: Idle too high after Hyperground wire install. [Re: GTS2003BLK] #138212 Mar 28, 7:24pm Mar 28, 7:24pm
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Posts: 487
Portland, Oregon
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2003 Toyota Celica
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Thanks for the info guys, makes feel a little better. I hate that nagging feeling after Ive done work on my car and things just dont feel quite right. spineyes

Ill try the advice.

Re: Idle too high after Hyperground wire install. [Re: GTS2003BLK] #138213 Mar 28, 7:27pm Mar 28, 7:27pm
Joined: Aug 2003
Posts: 6,371
New Orleans, LA
Speed4TheNeed
Caleb
2000 Toyota Celica
Speed4TheNeed
Caleb
2000 Toyota Celica

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Posts: 6,371
New Orleans, LA
no problem, glad we could help thumbsup

Re: Idle too high after Hyperground wire install. [Re: GTS2003BLK] #138214 Mar 28, 8:18pm Mar 28, 8:18pm
Joined: Jul 2003
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San Leandro/Davis, CA
2000 Liquid Silver Toyota Celica GT
ToiletPaper
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2000 Toyota Celica GT
ToiletPaper
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Posts: 2,217
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keep up posted on what happens.

Re: Idle too high after Hyperground wire install. [Re: ToiletPaper] #138215 Apr 23, 7:42am Apr 23, 7:42am
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Portland, Oregon
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thumbsup

Re: Idle too high after Hyperground wire install. [Re: GTS2003BLK] #138216 Apr 23, 7:43am Apr 23, 7:43am
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Portland, Oregon
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Idle has since returned to normal, must have been the ecu. Though occasionally on cooler mornings it will start out a little high but settles back down after a few minutes of driving. Still very happy with the mod, good ROI.

Re: Idle too high after Hyperground wire install. [Re: GTS2003BLK] #138217 Apr 23, 8:16am Apr 23, 8:16am
Joined: Apr 2004
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Atlanta, GA
2004 Silver Toyota Celica GT
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After having my battery unhooked for an extended period of time during my stereo install, my idle did the same thing.

It would fire up high and then vary a few hundred RPMS in any direction at any time for no reason. Hang @ 1000 for 5 seconds, jump to 1200, stay for 5 seconds, back to 1000, then to 900, etc.

It's been a few days and mine is all normal again now.


~ 2004 Silver GT
Re: Idle too high after Hyperground wire install. [Re: 2K4Celica] #138218 Apr 23, 8:34am Apr 23, 8:34am
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Michigan
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fusi0n
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the reason that your idle is so erradic is that your ECU is trying to adjust itself..just give it some time and it will be normal

Re: Idle too high after Hyperground wire install. [Re: fusi0n] #138219 Apr 23, 8:45am Apr 23, 8:45am
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CA
stefanoc
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stefanoc
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the main reason here for ur car to idle higher is because of the grounding kit. the grounding kit makes ur engine idle smoother, so you should have expected for ur car to idle a little higher than normal. but after a while the ecu learns it and gets used to it and drops it back where its necessary. it should regularly idle around 700-750rpm.
any difference you feel from the grounding kit?

Re: Idle too high after Hyperground wire install. [Re: stefanoc] #138220 Apr 23, 9:41am Apr 23, 9:41am
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Not a huge power increase but definitely noticeable particularly in the 3 to 5K range, 7 to 8K feels stronger as well.

Re: Idle too high after Hyperground wire install. [Re: GTS2003BLK] #138221 Apr 24, 9:08am Apr 24, 9:08am
Joined: Feb 2004
Posts: 1,716
Nebraska
celicafourotwo
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Nebraska
i also did the ground kit thingy..noticed how smooth it starts and idle for the first week...not it;s like before i ever put it on..no changes, start slower, idle kind rough, up and down, around 6-800rmps, sometime choke and almost shut off..dunno y, clean the MAF already.. confused


Originally Posted by pesho01
Question:
Whenever my car is at a full stop or even in park the RPM never sits on 0. what does this mean?
Re: Idle too high after Hyperground wire install. [Re: celicafourotwo] #138222 Apr 24, 9:37am Apr 24, 9:37am
Joined: Feb 2004
Posts: 255
WI
YoshiVS
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2000 Toyota Celica
YoshiVS
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WI
your car should be doing that!

When you install a grounding kit you improve you electric flow and you should idle higher. But your ECU should be able to adjust over time.

I had the same thing happen to me. But have no problems.
I luv my Grounding Kit thumbsup


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Re: Idle too high after Hyperground wire install. [Re: YoshiVS] #138223 Apr 24, 9:59am Apr 24, 9:59am
Joined: Jan 2004
Posts: 1,612
St.George, UT
eric_h
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i think the question has been answered rice


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