Idle Questions

paN1k · 01-25-2013, 07:53 PM

I was having some idle issues where if I was sitting in traffic and the radiator fan would kick in and raise the idle past 1k and it would fluctuate and return to normal after the fan kicked off. I cleaned the MAF sensor and the car not only gets better gas milage but when the fan kicks on it doesn't fluctuate as much, it will go to 1k for a few seconds and return to normal.

Is that normal for the idle to go up when the radiator fan kicks in? It's much better than what it was, just thought i'd ask.

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c130turboprop · 01-25-2013, 08:28 PM

check your battery voltage and grounds... if battery doesnt have enough juice, the draw could put strain on the electrical system/alternator, and cause the motor to rev to get current flowing from the alternator. not saying this is the problem, jus something to check

HinshawWRX · 01-25-2013, 09:41 PM

First off, was your a/c OR defroster running?

paN1k · 01-26-2013, 12:40 AM

neither! thermostat was set to 75 but knob was set to off.

01-25-2013, 07:53 PM	#1
paN1k Scooby Newbie Member#: 218607 Join Date: Jul 2009 Chapter/Region: SCIC Location: Mon-Tree Park Vehicle: 2006 WRX Limited CGM Wagon	Idle Questions I was having some idle issues where if I was sitting in traffic and the radiator fan would kick in and raise the idle past 1k and it would fluctuate and return to normal after the fan kicked off. I cleaned the MAF sensor and the car not only gets better gas milage but when the fan kicks on it doesn't fluctuate as much, it will go to 1k for a few seconds and return to normal. Is that normal for the idle to go up when the radiator fan kicks in? It's much better than what it was, just thought i'd ask. * Registered users of the site do not see these ads.

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01-25-2013, 08:28 PM	#2
c130turboprop Scooby Newbie Member#: 293873 Join Date: Sep 2011 Chapter/Region: MAIC Location: youngstown, ohio Vehicle: 2006 Subaru WRX STI Blue	check your battery voltage and grounds... if battery doesnt have enough juice, the draw could put strain on the electrical system/alternator, and cause the motor to rev to get current flowing from the alternator. not saying this is the problem, jus something to check

01-25-2013, 09:41 PM	#3
HinshawWRX n00b Moderator Moderator Member#: 140114 Join Date: Feb 2007 Chapter/Region: MAIC Location: Jolly ol York of VA Vehicle: 06 18G Semi Built SGM WRX	First off, was your a/c OR defroster running?

01-26-2013, 12:40 AM	#4
paN1k Scooby Newbie Member#: 218607 Join Date: Jul 2009 Chapter/Region: SCIC Location: Mon-Tree Park Vehicle: 2006 WRX Limited CGM Wagon	neither! thermostat was set to 75 but knob was set to off.