Idle Speed - Fluctuation/Hunting

Bulletin No.: 056/89
Issued: 4/24/89
Revised: 6/30/89

Category
4

Applicable Model/s
1988-89 626/MX-6
(w/o Turbo)

Subject
IDLE SPEED FLUCTUATION OR HUNTING

DESCRIPTION

Idle speed fluctuation or hunting may occur when the electrical load such as headlights, rear defroster and so on are turned on while idling. This condition likely occurs easily if the idle speed is adjusted too low.

If you encounter a customer with a 1988-1989 626/MX-6 MTX complaining of idle fluctuation or similar complaint, adjust the idle speed according to the following repair procedure.

REPAIR PROCEDURE





1. Warm up the engine and check that the idle speed is within the specification.

* Idle Speed: 750 +/- 25 RPM (in Neutral, with Test Connector grounded)

2. With the test connector NOT grounded, check for a fluctuation in the idle when the head lights and rear defroster are turned "ON". If fluctuation is present, ground the test connector and ad- just the idle speed to 950-1000 RPM (in neutral with the parking brake applied). *

WARRANTY INFORMATION

Customer Comment Code: 03
Damage Code: 9 H
P/N of Main Cause: F201 20 660
Quantity: 0 (Zero)
Operation Number: XX0330RX
Labor Hour: 0.2 Hr.