Engine - Erratic Idle/Low Performance/MIL ON: Overview
NO.: TSB-96-13-010DATE: May, 1996
MODEL: 1995-96 Eclipse
SUBJECT:
ECLIPSE ERRATIC IDLE
PURPOSE
The procedures described in this bulletin can correct a condition of erratic idle, loss of performance, and a lighted Malfunction Indicator Light (MIL) in a 1995 or 1996 Eclipse with the 420A 2.0L D0HC engine.
VEHICLES AFFECTED
1995 and 1996 Eclipse models built before November 1, 1995 and equipped with the 420A 2.0L D0HC engine are affected.
SYMPTOMS
Idle is erratic. Check Engine Light MIL) is lit. The customer may complain of a loss of power. The MUT II displays a code DTC 26 "Low Throttle Position Sensor Voltage.
DIAGNOSIS
First, verify that all engine systems are functioning correctly. Use the diagnostic procedures in the Eclipse Service Manual, Vol. 1. If the MUT II shows Diagnostic Trouble Codes other than "26", please record these codes on the repair order for future reference.
If diagnosis shows a failed Throttle Position Sensor (DTC 26), first check the throttle body part number. The part number is embossed on the top of the throttle body at the location shown.
If the part number of the throttle body on the vehicle is MO4669O32, it is one that was built without an O-ring seal that prevents moisture contamination, and it must be replaced. Replace the original throttle body with Throttle Body MO4669860. Use a new Throttle Body Gasket MO4669034.
NOTE:
The new throttle body M04669860 comes complete with an updated Throttle Position Sensor. It is not necessary to order a throttle position sensor separately if the throttle body is being replaced.
If the throttle body is NOT M04669032, it will be necessary to replace the throttle position sensor (TPS) and O-ring. Follow the procedure below.
WARRANTY INFORMATION
Throttle Body Replace
Nature Code 03D
Cause Code 460
Labor Operation No. 13 31 21 10
Time Allowances: 0.6 hr.
Warranty Coverage:
Emission Warranty Coverage Throttle Position Sensor Replace
Nature Code 03D
Cause Code 460
Labor Operation No. 13 83 13 10
Time Allowances: 0.4 hr.
Warranty Coverage:
Emission Warranty Coverage Diagnosis With Scan Tool
Nature Code 03D
Cause Code 460
Labor Operation No. 13 83 13 A9
Time Allowances: 0.2 hr.
Warranty Coverage:
Emission Warranty Coverage
PARTS INFORMATION
1 M04669860 Throttle Body Assembly
1 M04874430 Throttle Position Sensor, DOHC
1 M04669034 Throttle Body Gasket