Deterministic signal physics engine
Upload a scope capture. Get a measured verdict.
PicoScope CSV or Snap-on file in, an RO-ready report out in under a minute. In-cylinder pressure, relative compression, fuel-rail vibration, pressure pulse and more, measured sample by sample on diagnostic physics.
Scan Pack $14.99 for 6 scans · Pro $29/month founding rate, unlimited · 14-day money-back
- In-Cylinder Pressure
- Relative Compression
- Pressure Pulse
- Fuel Rail Vibration
- Fuel Injector — Port & GDI
- Crank Sensor Signal
- Cam/Crank Correlation
- CAN Bus (SavvyCAN log)
- Battery Test (cranking)
- Starter Test (cranking current)
- Engine Sound (AI, by ear)
Crank two cars
Two real starter-current captures from customer cars: one passed relative compression in the bay, one failed. Set up the test the way you would on /diagnose and run it. The numbers and the verdict come from the same code the signed-in app runs, on the file as it was captured. No AI writes anything here.
This demo runs two fixed captures. Run your own PicoScope or Snap-on capture and file the report to History.
Scan Pack $14.99 for 6 scans · Pro $29/month founding rate, unlimited · 14-day money-back
See plansInstant Pinpoint Waveform Analysis for Master Technicians.
Upload scope captures or CSV data logs to measure cylinder contribution, cam/crank timing and injector events, and say plainly when a capture can't decide.
Real PicoScope starter-current captures from customer cars. Positions count from where the crank window starts; they are not cylinder numbers. Run both in the live demo above.
Coverage
Every supported signal and the measurable it returns.
Physics-Based Oscilloscope & Data Log Analysis.
Engineered around industry-proven diagnostic physics to eliminate manual cursor dragging. No scope on the car? Record the noise with a phone and an AI ranks the likely causes. That path is AI listening, not the measured pipeline.
Capture to report
Try Diagnostic Coach · Pro
Illustrative demonstration using preset questions. Live Coach uses your analysis to help with setup, interpretation, and the next diagnostic test.
How would I set up a coordinated VVT test?
Start with the vehicle procedure and your scope model. Record crank and cam together to observe their relationship, with solenoid current on another channel if available. Confirm sensor types, probe scaling, and the required operating state before choosing ranges or a trigger. Identify the commanded interval. Exact settings depend on the signals and equipment.
Current changed, but the cam relationship did not. What next?
Demonstration scenario: assume a readable, synchronized capture shows changed solenoid current with little cam movement. That establishes electrical activity without the expected mechanical response; it does not identify a failed phaser. Verify command prerequisites and use the applicable procedure to separate oil-supply, control-valve, and mechanical causes.
Can you help improve a sound recording?
Keep the device, microphone position, distance, and gain consistent. Record stable baseline sound and the specified change under comparable starting conditions. Check for clipping, wind, and handling noise first. A noise that follows RPM is a clue; further evidence is needed to identify its source.
Stop dragging cursors.
Pick a plan, upload your first capture, and get a measured verdict in under a minute.
Scan Pack $14.99 for 6 scans · Pro $29/month founding rate, unlimited · 14-day money-back