# Performance Chip Tuning and ECM Flash in Anaheim, CA

Canonical: https://fleettruckrepairshop.com/services/specialty-upgrades/ecm-tuning/
Business: Fleet Truck Repair Shop, Yorba Linda, CA. Serving Anaheim, California.
Phone: (714) 909-1844 | Email: info@ocrvcenter.com

Yes. Our Yorba Linda shop performs ECM flashing and performance tuning on diesel and gas commercial trucks for Anaheim fleets, from factory reflash updates and drivability fixes to economy-focused tuning. We read engine and transmission modules, correct fault-causing calibrations, and load tuning that sharpens throttle response and fuel economy, all while keeping emissions systems intact and street legal.


## What this includes
- ECM and TCM diagnostic read and health check
- Factory reflash and calibration updates for known issues
- Economy-focused tuning for better fuel mileage under load
- Throttle response and shift quality improvement
- Drivability and cold-start fault correction
- Speed limiter and idle parameter adjustment where legal
- Post-flash road test and data logging to confirm results

## Who it is for
- Anaheim fleets chasing better fuel economy across many trucks
- Operators with drivability, shifting, or cold-start complaints
- Owners wanting factory updates and calibration fixes applied

## Pricing
A diagnostic read and single-module reflash starts at the low end, while custom multi-module tuning with road testing reaches the upper range. We confirm your ballpark in writing after an in-shop assessment.

## FAQ
### Can tuning improve my commercial truck fuel economy?
Often yes. A calibration tuned for real-world loaded driving can smooth throttle and shift behavior and cut waste, which adds up across an Anaheim fleet. Gains vary by engine and route, and we log before and after data so you see real numbers.

### Do you delete emissions equipment for more power?
No. Emissions deletes are illegal for on-road trucks in California and elsewhere. We tune within legal limits, keep your DPF, EGR, and DEF systems working, and focus on economy and drivability so your Anaheim trucks stay compliant.

### Will a flash affect factory coverage on a newer truck?
On trucks still under factory coverage we usually apply the manufacturer reflash updates rather than aftermarket tunes. For older Anaheim fleet trucks past that coverage we have more tuning freedom. We explain the tradeoffs before we touch the module.