# SCR Catalyst Repair in Riverside, CA

Canonical: https://commercialvanrepairshop.com/services/emissions-def/scr-catalyst-repair/
Business: Commercial Van Repair Shop, Yorba Linda, CA. Serving Riverside, California.
Phone: (714) 646-1433 | Email: info@ocrvcenter.com

SCR catalyst repair for your Sprinter tackles low SCR efficiency codes, crystallized DEF deposits, and a failing catalyst that will not clear an emissions fault. We test conversion efficiency with Xentry, inspect the injector and mixer, and repair or replace the SCR catalyst, so your diesel meets its emissions targets and stays legal on Inland Empire roads.


## What this includes
- Xentry SCR conversion efficiency test
- Inspection of the DEF injector, mixer, and lines
- Cleaning of crystallized DEF deposits
- SCR catalyst repair or replacement
- NOx sensor cross-check after the repair
- Fault clear and readiness verification

## Who it is for
- An SCR efficiency code will not clear
- Crystallized DEF has fouled the catalyst
- The van counts down to no-start from an SCR fault
- You need the emissions system to pass before smog

## Pricing
Mechanical labor runs $260 per hour; injector and mixer repair versus a catalyst replacement sets the range, all set in writing after inspection.

## FAQ
### What is an SCR efficiency code?
It means the catalyst is not converting enough NOx. Causes include crystallized DEF, a bad injector or mixer, or a worn catalyst. We test conversion with Xentry.

### Can crystallized DEF be cleaned out?
Sometimes. If deposits are the issue and the catalyst is still sound, we clean them and check the injector. A degraded catalyst gets replaced.

### Why did the SCR catalyst fail?
Contaminated DEF, a leaking injector, or high miles can foul or degrade it. We check the whole SCR circuit so a new catalyst is not fouled all over again.

### Will this clear my no-start countdown?
Repairing the SCR fault and verifying conversion clears the code and the countdown. We confirm readiness with Xentry before you leave.