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The Problem 

"We couldn't reproduce the issue."

By the time the warning light comes on, something is already wrong. Your classic car won't tell you why.

Sometimes that means a car that won't start. Sometimes it's a problem that only happens on the road and vanishes the moment you pull into the shop.

And even if you have gauges, they don't record. Your eyes aren't always on them. They can't tell you what happened in time before something went wrong.

No data. No answers. Just guesswork. And you're the one paying for it with time and money.

The Solution 

The Diagnostic System Your Classic Car Never Had

Install it once. Then it disappears. GhostGauge silently monitors your engine every drive, streaming live to your smartphone and logging fault data. 

The first wireless diagnostic system for classic cars. Finally.

I Built GhostGauge Because It Didn't Exist

I ran into the same problem every classic car owner does. Intermittent issues. No data. Expensive guesses and late nights.

As an electrical engineer with over a decade in automotive and aerospace, I thought...why shouldn't my 50-year-old car have a diagnostic tool?

So I built one. Using my 1974 Porsche 914 as the development test bed. Designing PCBs. Testing sensors. Putting miles on it.

And this is just the beginning.

— Tyler R., Founder

From Install to Insight in 3 Steps

Step 1

Connect the sensor harness to fuel, oil, and ignition systems. Mount the diagnostic module in your engine bay. One afternoon. Never touch it again.

Step 2

Pair a smartphone with the GhostGauge diagnostic module, add basic vehicle info, and start viewing live data.

Step 3

Drive as normal. GhostGauge automatically wakes, monitors, and logs performance so you can review data and alerts anytime.

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Continuous data logging that catches intermittent problems

GhostGauge captures elusive issues that mechanics often can’t reproduce. With a data history of what happened, you and your technician can diagnose faster and spend less time guessing.

Install wireless sensors without cutting or altering originality

GhostGauge wireless sensor nodes install easily without cutting into wiring harnesses or changing your vehicle’s originality. The reversible setup is ideal for classic car aesthetics and works on vehicles that never had OBD or OBD2 systems.

Get trend-based alerts and pre-event data before a fault

GhostGauge detects deviations from your vehicle’s normal behavior and automatically stores data just before a fault occurs. That advance warning helps you prevent catastrophic engine damage and costly repairs.

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Live data, historical logs, and analytics in the GhostGauge app

See live performance data, review historical logs, and export records for your mechanic right from your phone. GhostGauge also sends instant alerts when abnormal readings are detected, turning confusion into confidence.

Tech Specs

  • Hub dimensions: 60mm x 35mm x 25mm
  • Wireless node dimensions: 60mm x 35mm x 25mm
  • Power: Replaceable coin-cell batteries (average 1-year life depending on usage)
  • Connectivity: Wireless sensor network paired via dedicated GhostGauge hub
  • App platform: iOS and Android compatible
  • Data storage: Cloud-based long-term storage with local live readout

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