Engine Controls - High/Rough Idle/Stalling When Cold

FORENZA

Section Title: Engine
TSB No. TS 03 06035

Division: Automotive
Category: Technical

SUBJECT:
ECM REPROGRAMMING FOR HIGH IDLE, ROUGH IDLE/STALL

MODEL(S):
FORENZA SEDAN/WAGON, RENO (RQ420)

YEAR:
2004-2005

CONDITION:

During cold engine operation, vehicles with manual transmission may exhibit a high idle (2000+r.p.m.) for up to ten seconds when coming to a stop with the clutch released.

During cold engine operation, vehicles with automatic transmission may exhibit a rough idle/stall in neutral/park in the first ten seconds of engine operation or in gear if a shift occurs quicker than 15 seconds after starting.

CAUSE:
ECM Software Logic

CORRECTION:
Engine idle can be improved by reprogramming the ECM. Follow the reprogramming procedure described below.





REQUIRED TOOLS AND SOFTWARE:





WARRANTY CLAIM INFORMATION

Reprogramming Procedure:

1. Log onto the SCAT system and access the Suzuki Pitstop. Click on "OBD/OBDII DIAGNOSTICS"

2. Download and review the Suzuki Pass-Thru Reprogramming Tool Operator's Manual. This must be read and understood COMPLETELY before attempting to reprogram the ECM.

3. Following the procedure outlined in the Suzuki Pass-Thru Reprogramming Tool Operator's Manual, download and install the Pass-Thru Reprogramming Software "3_SOFTWARE.EXE" and the Suzuki Pass-Thru Reprogramming Data Base Calibration Files 4_DATABASE1.EXE" onto your PC.

4. Following the procedures outlined in the Suzuki Pass-Thru Reprogramming Tool Operator's Manual hook up the SDS Interface Tool P/N 09910-06520 to the vehicle and run the ECM reprogramming software.





5. When the ECM reprogramming is complete fill out the Reprogram Label P/N 99963-01501-224 and affix it to the inside left of the glove box door as pictured.





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