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Home >> Infiniti >> 2004 >> I35 >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (TCS) >> Trouble Diagnoses For Symptoms >> Poor Acceleration

Poor Acceleration

WARNING: This page is about a different car, the 2003 Infiniti I35. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspection Start 

    Engine acceleration is poor while TCS is operating. Vehicle instability is caused by unstable engine rpm operation. (Engine is shaking.)

    Go to next step.

  2. Check Performance 
    1. Cancel TCS operation using TCS OFF switch. (TCS OFF indicator lamp lights.)
    2. Drive vehicle or accelerate engine.
      1. Is engine acceleration poor or does automatic transaxle shift when TCS is not operating  ?

    Yes: Go to TROUBLE DIAGNOSIS - INTRODUCTION  .

    No: Go to next step.

  3. Check Self-Diagnosis 

    Perform self-diagnostic procedures for TCS.

    1. Does any of the following self-diagnostic items appear on the display  ?

    Yes: Go to TROUBLE DIAGNOSIS - INTRODUCTION  .

    No: Go to next step.

  4. Check Self-Diagnosis 

    Perform self-diagnostic procedures for ABS/TCS.

    1. Does any of the following self-diagnostic items appear on the display  ?

    Yes: Go to TROUBLE DIAGNOSIS - INTRODUCTION  .

    No: Go to next step.

  5. Check Self-Diagnosis 

    Perform self-diagnostic procedures for ECM.

    1. Does any of the following self-diagnostic items appear on the display  ?

    Yes: Go to TROUBLE DIAGNOSIS .

    No: Inspection End