Check Engine Light Near Leesburg, FL
The check engine light tells you something in the monitoring system flagged a fault. It does not tell you what to replace. RJ Fox Automotive diagnoses check engine lights for all vehicle makes and models at our Eustis shop, about fifteen minutes from Leesburg via US-441 South.
We pull the codes and the freeze frame data, run live data analysis, and do whatever hands-on testing the fault calls for before we put a recommendation in front of you. A P0420 could be a bad converter, an upstream misfire that damaged it, or an oxygen sensor reading incorrectly. We find out which before recommending anything.
Steady Light vs. Flashing Light
A steady check engine light means a fault has been stored. A flashing check engine light means the engine has an active misfire severe enough to damage the catalytic converter. If it is flashing, back off the throttle and get it to a shop quickly.
Check Engine Light Services We Perform
Fault Code Retrieval and Analysis
Reading all stored, pending, and permanent codes along with freeze frame data to understand when and how the fault occurred.
Live Data Analysis
Monitoring fuel trims, oxygen sensor readings, and other parameters in real time to identify underlying issues.
Misfire Diagnosis
Identifying the specific cause of misfire codes, whether ignition, fuel, compression, or mechanical.
Oxygen Sensor Testing
Testing upstream and downstream oxygen sensor response and voltage output to distinguish sensor faults from real fuel mixture issues.
Fuel System Diagnosis
Testing fuel pressure, injector operation, and mass airflow sensor performance related to fuel-related codes.
Emissions System Testing
Diagnosing evaporative emissions codes, catalytic converter efficiency codes, and EGR system faults.
Root Cause Confirmation
Going beyond the code to confirm the specific failed component before any repair is recommended.
Fault Code Clearing and Verification
Clearing codes after a confirmed repair and verifying the system does not re-flag the fault.
"Rob and co from start to finish with all of the obstacles was top shelf. I highly recommend fox automotive for anyone that is tired of the bs mechanics. Integrity and quality work!"
Paul Pelky Jr — Leesburg, FL