Check Engine Light Diagnostics in Houston, TX

We charge a diagnostic fee that covers the scan, code interpretation, and hands-on testing to identify the root cause. This fee is typically applied toward the repair if you choose to have the work done with us. Call (832) 607-0968 for current pricing.

Parts stores offer free code reads, but a code alone doesn’t tell you what failed. For example, a P0300 misfire code could be spark plugs, coils, injectors, compression, or a vacuum leak. Without proper testing, you risk replacing parts that aren’t the problem.

A steady light usually means you can drive to the shop, though you should schedule it soon. A flashing check engine light means an active misfire — reduce speed and get to a shop as quickly as possible to avoid catalytic converter damage.

Some faults don’t immediately trigger a light. The engine management system sometimes needs to see a fault multiple times before setting a code. A rough-running engine without a light still warrants diagnosis — the problem will likely get worse.

A straightforward code-related diagnosis can be done in under an hour. More complex electrical or intermittent issues may take longer. We’ll give you a time and cost estimate before proceeding with extended diagnostics.

Yes. We perform parasitic draw testing, short circuit tracing, and module communication testing. Electrical faults can be time-consuming to find, but we have the tools and experience to trace them systematically.