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Makes 🢒 Saturn 🢒 2002 🢒 SL 🢒 Bulletins 🢒 Engine Hesitation and/or Vehicle Lacks Power with DTC P0326 Knock Sensor System Performance Set

Engine Hesitation and/or Vehicle Lacks Power with DTC P0326 Knock Sensor System Performance Set

Subject:Engine Hesitation and/or Vehicle Lacks Power with DTC P0326 Knock Sensor System Performance Set (Install PCM Calibration)

Models:2000 - 2002 Saturn S-Series vehicles equipped with manual transaxles (MP2/MP3) built up to and including VIN 2Z258983 or automatic transaxles (MP6/MP7) built up to and including VIN 2Z263777.


Condition

Some customers may comment about the engine lacking power when accelerating and/or engine hesitation while driving.

Cause

This condition may be caused by the PCM misinterpreting normal engine noise/vibration as spark knock resulting in unnecessary ignition timing retard.

Correction

To correct this condition continue with procedure in this bulletin.

Procedure
  1. Connect Scan Tool to the vehicle.
  2. Navigate to the 1.9L (LLO for DOHC, L24 for SOHC) Powertrain Menu.
  3. Select ID INFORMATION.
  4. Select CALIBRATION ID.
  5. Read CALIBRATION ID.
    6. • If PCM calibration ID number is listed below, reprogram the PCM with the latest calibration. For reprogramming procedures refer to the "Service Programming System (SPS)" in the Saturn Service Stall System (SSS) User Guide.
    • If PCM calibration ID number is not listed below, do not reprogram the PCM. The PCM already has the correct calibration installed to correct this condition. Refer to the diagnostic procedure for DTC P0326 located in the Engine/Emission Controls section of the 2000-2002 S-Series Engine Service Manual.

Calibration IDs with Potential for Subject Condition

21009140

21009141

21009142

21009143

21009144

21009145

21009146

21009147

21009148

21009149

21009201

21009202

21009203

21009204

21009205

21009206

21009256

21009257

21009258

21009259

21009272

21009273

21009274

21009275

Warranty Information

To receive credit for this repair during the warranty coverage period, submit a claim through the Saturn Dealer System for J6355 (EE PROM Reprogramming). If another procedure is performed, refer to the appropriate Electronic Labor Time Guide for the correct Labor Operation Code and Time. When another procedure is performed that requires EE PROM Reprogramming, J6355 must be claimed as a "related line" to that repair.