High Idle, need help

BRAUVIC · 07-28-2006, 08:15 PM

I have been looking through this site and haven't found much so I was wondering if someone could help me. I just finished a 100% rebuild with the 5S motor and adjusted the timing and everything is set to stock settings. It is idling pretty high. Is their something that I am missing or is there a sensor that is bad? It is idle at 1250 and it used to be about 750. Any suggestions? I did the trouble shooting with the BGB and still nothing. Maybe you guys have more experience with this.

mr2rider91 · 07-28-2006, 09:05 PM

theres an idle screw thats sunk in on top of your throttle body try that

Enthalpy · 07-28-2006, 11:40 PM

An air leak will cause this. There are techniques for finding air leaks. I suggest you try that first.

If you are CERTAIN you have no leaks, then your IAC valve might be malfunctioning, or perhaps the circuit to/from the IAC valve and the ECU.

BRAUVIC · 07-29-2006, 12:00 PM

By this do you mean a vaccum leak? Or a seal leak like where the throttle body meets the manifold? I need to get a hold to a volt/ohm meter. BGB says to check the TPS. Time to make a trip to the store.

Enthalpy · 07-29-2006, 12:07 PM

Yes, I mean a vacuum leak, which technically includes the throttle body to manifold seal.

BRAUVIC · 07-29-2006, 12:26 PM

cool, we can close this thread now. Money!

dammule · 04-28-2007, 11:42 AM

was it the TPS?

Enthalpy · 04-29-2007, 12:55 AM

TPS = Throttle Position Sensor. Think of it as a volume knob attached to your throttle body that tells the ECU where your throttle is at any point in time.

07-28-2006, 08:15 PM	#1 (permalink)
BRAUVIC I dream about 2's Join Date: Mar 2006 Location: New Orleans, Louisiana Posts: 58 Thanks: 0 Thanked 3 Times in 3 Posts My Google Map iTrader Rating: (0/0% )	High Idle, need help I have been looking through this site and haven't found much so I was wondering if someone could help me. I just finished a 100% rebuild with the 5S motor and adjusted the timing and everything is set to stock settings. It is idling pretty high. Is their something that I am missing or is there a sensor that is bad? It is idle at 1250 and it used to be about 750. Any suggestions? I did the trouble shooting with the BGB and still nothing. Maybe you guys have more experience with this.

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07-28-2006, 09:05 PM	#2 (permalink)
mr2rider91 No Skills Join Date: Mar 2006 Location: Buckley, WA Posts: 33 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	theres an idle screw thats sunk in on top of your throttle body try that

07-28-2006, 11:40 PM	#3 (permalink)
Enthalpy EMS Harmonizer Join Date: Feb 2006 Location: Denver, CO Posts: 1,226 Thanks: 8 Thanked 55 Times in 43 Posts My Google Map iTrader Rating: (2/100% )	An air leak will cause this. There are techniques for finding air leaks. I suggest you try that first. If you are CERTAIN you have no leaks, then your IAC valve might be malfunctioning, or perhaps the circuit to/from the IAC valve and the ECU.

07-29-2006, 12:00 PM	#4 (permalink)
BRAUVIC I dream about 2's Join Date: Mar 2006 Location: New Orleans, Louisiana Posts: 58 Thanks: 0 Thanked 3 Times in 3 Posts My Google Map iTrader Rating: (0/0% )	By this do you mean a vaccum leak? Or a seal leak like where the throttle body meets the manifold? I need to get a hold to a volt/ohm meter. BGB says to check the TPS. Time to make a trip to the store.

07-29-2006, 12:07 PM	#5 (permalink)
Enthalpy EMS Harmonizer Join Date: Feb 2006 Location: Denver, CO Posts: 1,226 Thanks: 8 Thanked 55 Times in 43 Posts My Google Map iTrader Rating: (2/100% )	Yes, I mean a vacuum leak, which technically includes the throttle body to manifold seal.

07-29-2006, 12:26 PM	#6 (permalink)
BRAUVIC I dream about 2's Join Date: Mar 2006 Location: New Orleans, Louisiana Posts: 58 Thanks: 0 Thanked 3 Times in 3 Posts My Google Map iTrader Rating: (0/0% )	cool, we can close this thread now. Money!

04-28-2007, 11:42 AM	#7 (permalink)
dammule pool junkie Join Date: Dec 2006 Location: Duluth Posts: 45 Thanks: 3 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	was it the TPS?

04-29-2007, 12:55 AM	#8 (permalink)
Enthalpy EMS Harmonizer Join Date: Feb 2006 Location: Denver, CO Posts: 1,226 Thanks: 8 Thanked 55 Times in 43 Posts My Google Map iTrader Rating: (2/100% )	TPS = Throttle Position Sensor. Think of it as a volume knob attached to your throttle body that tells the ECU where your throttle is at any point in time.