POWERSTROKE-P20F7 serious Power Stroke ›

SCR Temperature Too Low

The POWERSTROKE-P20F7 (Power Stroke) diesel fault code means: SCR Temperature Too Low. This is a serious severity code.

Unverified. We could not confirm this code's definition against freely available manufacturer documentation, so treat the meaning, severity and fix guidance on this page as unconfirmed. Check it against the manufacturer's service information for your exact model and serial range before acting on it. This page is kept out of search engines for that reason, and we are working through this family manual by manual.

My Garage →
Keep driving?
Yes, but fix soon
DIY difficulty
intermediate
Estimated cost
$0-$500
Mobile mechanic network · I-5 corridor pilot

Down with a Power Stroke fault on the road?

We are building a network of verified mobile diesel and reefer technicians along the freight corridor. It is not live yet — no one can be dispatched to you today. You can see where the pilot is launching and register interest.

View pilot availability →

What Are the Symptoms of POWERSTROKE-P20F7?

  • CEL

What Causes POWERSTROKE-P20F7? (Most Likely First)

  • Short-trip driving Likely
  • Failed SCR temp sensor Likely

Can I Still Drive with POWERSTROKE-P20F7?

Yes, but fix soon. POWERSTROKE-P20F7 is rated serious severity. It is not an immediate stop-driving fault, but it will not clear itself — book the repair rather than ignoring it.

Frequently Asked Questions

What is P20F7 on a 6.7L Power Stroke (Scorpion)?

P20F7 on a 6.7L Power Stroke (Scorpion) (2011-present) indicates: SCR Temperature Too Low. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.

Can I drive with P20F7 on my Power Stroke?

Yes, you can generally drive with this code, but diagnose it soon to prevent further damage.

How much does it cost to fix P20F7?

Repair cost is typically $0-$500 depending on the underlying cause and whether you DIY or use a shop. Diagnostic time alone runs $100-$180 at most independent diesel shops.

Mechanics Guide Step-by-step diagnosis

How Do You Diagnose POWERSTROKE-P20F7?

  1. Highway drive.

  2. Replace sensor if needed.

Sources 1

This page is built from documented references. Verify against your own service info before repair work.

  • SAE J2012Diagnostic Trouble Code Definitions (defines P20F7 as a generic OBD-II code)

Which Vehicles Commonly Get POWERSTROKE-P20F7?

  • 2011-present Ford F-250 Super Duty 6.7L Power Stroke
  • 2011-present Ford F-350 Super Duty 6.7L Power Stroke
  • 2011-present Ford F-450/F-550 Super Duty 6.7L Power Stroke
  • 2015-2019 Ford F-650/F-750 6.7L Power Stroke

Explore More

Was this helpful?

Send this to whoever is fixing the truck — your tech, or the person asking what the fault means.