Free API
Back to 2019 Toyota Corolla
Help
2019 TOYOTA COROLLA
1.8L I4•FWD•CVT•gas•2ZR-FE
5 active safety recalls on this vehicle — view recalls
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs395Labor496Torque3351Fluid7DTC1889Battery1Maintenance0Recalls5
P0470moderate severityPowertrain

Exhaust Pressure Sensor Malfunction

on 2019 Toyota Corolla 1.8L I4 · FWD

What this code means

The exhaust back pressure sensor is reading outside its expected range or has failed. This can affect EGR and turbo boost control on diesel and some gas engines.

Symptoms

  • Check engine light on
  • Reduced engine power
  • Poor fuel economy

Common causes

  • Faulty exhaust pressure sensor
  • Clogged or damaged sensor pressure tube
  • Wiring or connector corrosion
  • Failed PCM input circuit

Diagnostic steps

  1. Scan and confirm code with freeze frame data
  2. Inspect sensor and pressure tube for clogs or leaks
  3. Check wiring and connector for damage
  4. Compare sensor reading to known good values, replace if faulty
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITE
Shop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Other Powertrain codes on this vehicle

🔌 Need this data in your app? It's all in the free API →
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
Stuck on this repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
Share:XRedditFBWhatsAppThreadsEmail
⚠ STILL BEHIND THE PAYWALL
The 2019 Toyota Corolla repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the Toyota Corolla — $99 →
Building an app?
Free API access to all this data — 10 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 →