Ignition Coils & Engine Sensor Replacement
From misfire codes to failed O2 sensors — diagnosed and replaced at your home or workplace.
Modern engines rely on dozens of sensors and individual ignition coils. When one fails, you get warning lights, misfires, or poor running. Mason's Mobile pinpoints the exact failed component with professional diagnostics — no parts-cannon guessing.
We replace ignition coils, oxygen sensors, camshaft and crankshaft sensors, MAF sensors and more, on-site and warrantied.
Common Warning Signs
- • Misfire codes (P0300 series)
- • Flashing check engine light
- • Poor acceleration
- • Failed smog check
- • Rough running in the morning
Most repairs can be completed wherever your vehicle is located. For larger repairs that require a lift, specialized equipment, or more workspace, Mason's Mobile can arrange service at our trusted local garage. This gives customers the convenience and personal service of a mobile mechanic while often saving money compared with dealership and large repair-shop pricing.
The big shops carry way too much overhead — and their prices show it. We're in business to actually help people: honest diagnosis, fair pricing, and getting you back into a safe, drivable car without the insane repair bills.
Areas We Serve
Ignition Coils & Sensors is available throughout the Las Vegas Valley — we come to your home, workplace, or wherever the vehicle is parked.
Frequently Asked Questions
What are the symptoms of a bad ignition coil?+
Misfiring, shaking at idle, flashing check engine light, loss of power and worse fuel economy. A P030X misfire code often points to a specific cylinder, which we confirm by testing rather than guessing.
Should I replace one coil or all of them?+
It depends on mileage and coil design. On higher-mileage engines it's often smart to do companions at the same time to avoid repeat visits — we'll give you the honest math for your vehicle either way.
Which sensors do you replace on-site?+
Common ones include oxygen sensors, crankshaft and camshaft position sensors, MAF/MAP sensors and coolant temp sensors. We verify the failure with live data first so you don't replace parts on a hunch.
Can a bad sensor really stop the car from starting?+
Yes — a failed crankshaft position sensor is a classic no-start cause. It's one of the first things we test on crank-no-start calls.