Back to 2007 Toyota Avalon

2007 TOYOTA AVALON

3.5L V6FWDAUTOMATICgas
6 active safety recalls on this vehicle — view recalls
Repairs0Labor469Torque2476Fluid6DTC855Battery1Maintenance0Recalls6
P0316moderate severityPowertrain

Engine Misfire Detected on Startup (First 1000 Revolutions)

on 2007 Toyota Avalon 3.5L V6 · FWD

What this code means

Misfire detected during the first 1000 engine revolutions after startup.

Symptoms

  • Check Engine Light after cold start
  • Rough start then smooths out
  • Stumble on startup

Common causes

  • Leaking fuel injector (dripping when off)
  • Loss of fuel pressure after shutdown
  • Spark plug fouled from previous shutdown

Diagnostic steps

  1. Perform fuel pressure leak-down test
  2. Check injectors for leaks
  3. Inspect spark plugs
  4. Monitor misfire counts on cold start

Repair notes

Check for leaking injectors. Replace fouled spark plugs.

Other Powertrain codes on this vehicle

Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →