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P1604

Startability Malfunction

2002-2003 Lexus ES 300 3.0L V6

High SeverityPowertrain

Description

The engine failed to achieve stable running speed within expected time after cranking.

Symptoms

  • CEL
  • Hard starting
  • Extended cranking
  • Stall after start
  • Rough idle

Common Causes

  • Fuel delivery issue
  • Ignition problem
  • Air leak
  • Low compression

Diagnostic Steps

  1. Check fuel pressure
  2. Test ignition system
  3. Check for vacuum leaks
  4. Test compression

Repair Notes

Diagnose and repair root cause.

Other Powertrain Codes

P1604 on Other Vehicles

Common Questions

What does code P1604 mean on a 2002-2003 Lexus ES 300?

P1604 stands for "Startability Malfunction". The engine failed to achieve stable running speed within expected time after cranking.

What are the symptoms of P1604 on a Lexus ES 300?

Common symptoms of P1604 include: CEL, Hard starting, Extended cranking, Stall after start, Rough idle.

What causes P1604 on a 2002-2003 Lexus ES 300?

Common causes of P1604 include: Fuel delivery issue, Ignition problem, Air leak, Low compression.

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