Subject	In datascan active test, what happens when you adjust the
Posted by	Evan_Wright (Ca) on June 08, 2013 at 2:53 PM
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In Reply To	Re: Do you have any diagnostic software like Nissan datascan? posted by Da Flash on June 08, 2013 at 12:18 PM
Message	duty cycle of the AAC to 0%? Does it drop the rpm's to normal level? What if you adjust the AAC to 100% duty cycle? The AAC is a solenoid that has constant 12v on one wire when the car is on. The other wire is the ground and is controlled via pulse width modulation from the ecu. If this wire is accidentally grounded you will always have high idle. However, it sounds like the ecu is trying to raise the idle based on some other sensor reading it is getting. What value does your tps sensor show in datascan at idle? Does the closed throttle switch show "on" at idle? What does your coolant temperature sensor show in datascan after fully warmed up?
Follow Ups	Throttle body adjustment question - Da Flash 21:40:12 06/07/13 i bet you have a bad ecu (n/m) - Dane (Houston) 04:13:28 06/08/13 Re: i bet you have a bad ecu - Da Flash 12:27:54 06/08/13 swaping in a good know one is the easiest way - Dane (Houston) 02:17:28 06/10/13 Re: i bet you have a bad ecu - Da Flash 10:59:03 06/12/13 Do you have any diagnostic software like Nissan datascan? - Evan_Wright (Ca) 09:46:09 06/08/13 Re: Do you have any diagnostic software like Nissan datascan? - Da Flash 12:18:59 06/08/13 In datascan active test, what happens when you adjust the - Evan_Wright (Ca) 14:53:56 06/08/13 Re: In datascan active test, what happens when you adjust the - Da Flash 15:54:23 06/08/13 Re: Re: In datascan active test, what happens when you adjust the - Da Flash 15:56:08 06/08/13 Sounds like you have done a good amount of troubleshooting. - Evan_Wright (Ca) 21:10:20 06/08/13
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