Lancer L4-2.0L (4B11) (2008)
Technical Service Bulletin # 08-13-005R
Date: 080923
Engine Controls - Engine Returns To Idle Too Slowly
No: TSB-08-13-005REV
DATE: September, 2008
MODEL:
2008 Lancer with M/T
SUBJECT:
ECM REPROGRAMMING FOR ENGINE SPEED RETURNS TO IDLE SLOWLY
This TSB supercedes TSB-08-13-005, issued April, 2008, to provide revised software for the described condition and include all 2008 model year
vehicles. Revised information is shown with a <.
PURPOSE
Customers of some affected vehicles may complain that the engine speed drops very slowly when depressing the clutch pedal after repeatedly depressing
and releasing the accelerator pedal (revving the engine). The condition is most commonly reported by drivers with a spirited driving style, especially in
city driving (e.g. stoplight to stoplight). The condition is due to parameters within the ECM that control engine speed to protect the catalytic convertor
when it is very hot.
This TSB advises technicians to reprogram the ECM with new software to correct the parameters controlling engine speed and the rate at which it returns
to idle when a vehicle is not in motion.
AFFECTED VEHICLE(S)
REQUIRED OPERATIONS
OVERVIEW
This procedure covers the following operations:
1.
Reprogram the ECM with new software parameters.
2.
Check for ALL DTCs. If DTCs are recorded in memory, diagnose and repair per the service manual.
The equipment is needed to reprogram the ECM is shown above.