TSB-08-13-006 ECM Reprogramming
Apr 22, 2008, 09:50 AM
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TSB-08-13-006 ECM Reprogramming
PURPOSE
Some customers of affected vehicles may experience illumination of the malfunction indicator lamp (MIL) with DTC 1320 stored in memory, or a drop in engine speed at idle. The Electronic Throttle Valve (ETV) may learn an incorrect position when the ignition switch is turned to the OFF position from the ON position without starting the engine.
If the vehicle is driven with this condition, the ETV mis-learns Idle Speed Control. As a result, the intake air volume is insufficient to achieve an initial idle target of 1,400 RPM, causing DTC P1320 to be set, or engine idle speed to drop.
This Technicial Service Bulletin advises the steps to reprogram the ECM with new parameters and to perform the ETV learning process.
AFFECTED VEHICLES
2008 Lancer Evolution X equipped with 5 speed manual transmission only built prior to VIN JA3AW86V08U049108
Some customers of affected vehicles may experience illumination of the malfunction indicator lamp (MIL) with DTC 1320 stored in memory, or a drop in engine speed at idle. The Electronic Throttle Valve (ETV) may learn an incorrect position when the ignition switch is turned to the OFF position from the ON position without starting the engine.
If the vehicle is driven with this condition, the ETV mis-learns Idle Speed Control. As a result, the intake air volume is insufficient to achieve an initial idle target of 1,400 RPM, causing DTC P1320 to be set, or engine idle speed to drop.
This Technicial Service Bulletin advises the steps to reprogram the ECM with new parameters and to perform the ETV learning process.
AFFECTED VEHICLES
2008 Lancer Evolution X equipped with 5 speed manual transmission only built prior to VIN JA3AW86V08U049108
Apr 22, 2008, 10:58 AM
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Sorry just figured I would share the information since I just had one of my techs look it up because we both have this issue. TSB release date is April 2008 so it can't be that old.
Apr 22, 2008, 08:48 PM
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it's an issue. but from my understanding it could be because they were tuned rich to accept upgraded parts easier. the big question still lies on how the update will affect upgrades as compared to the original programming.
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