Throttle Body Motor - Idle Problem
Thread Starter
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Throttle Body Motor - Idle Problem
Installed my Shaner throttle body and am having trouble with the cold start RPM. It starts right up but the RPM is up at around 2,200 and then it settles down and then idles fine. While I found several threads with similar problems doing a search, most were for f-bodies that don't have the motor controlling things.
Wondering if anyone knows what kind of motor is on the throttle body. When I received it back from Mark the throttle blade was open a bit more than the stock unit and I am not sure if the motor will close it down once it idles out or if I have to remove the motor and close the throttle blade down then re-install the motor. Does anyone know if the motor will keeps its last position when you shut the car down? Does anyone know what type of motor this is?
Wondering if anyone knows what kind of motor is on the throttle body. When I received it back from Mark the throttle blade was open a bit more than the stock unit and I am not sure if the motor will close it down once it idles out or if I have to remove the motor and close the throttle blade down then re-install the motor. Does anyone know if the motor will keeps its last position when you shut the car down? Does anyone know what type of motor this is?
Le Mans Master
Joined: Jan 2001
Posts: 5,019
Likes: 508
From: Hilton NY
First call them and ask how they calibrate the idle stop and explain the problem. The LG 90mm for example has an adjustment screw for setting the throttle blade opening using the position sensor on the side. The motor is part of a closed loop that includes the sensor on the side of the throttle body, if the internal stop is off then the sensor will be off and the system won't operate right. There is a spring inside the throttle body that closes the blade to a point but the internal stop sets how much it is open when the motor is at rest. When the system is on the motor can close the blade completely if the computer commands it to. The motor is geared down so taking it off and reinstalling it won't change anything. The throttle body could be ok and there is something else causing the fast cold idle.
