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Scope & Pinpoint

Your scope is one of the most powerful diagnostic tools in the shop. But it’s only as good as your ability to read what it’s telling you. Our built-in library gives you known-good waveforms to compare against — so you know what right looks like.

Diagnostic Categories

Each category contains known-good waveforms, and known bad, common failures, test procedures, and real-world examples. Click a category to explore.

📊

Baseline Testing

Relative Compression (RC) and Volumetric Efficiency (VE). The first test you should run on any engine performance concern. Establishes whether the engine can do its job.

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Cam and Crank

CKP and CMP signal analysis. Verify timing relationships, detect stretched chains, jumped timing, and sensor issues. The heartbeat of the engine.

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🔩

In Cylinder

Pressure transducer testing — cranking and running compression waveforms. See valve events, combustion, and mechanical issues that a gauge can't show you.

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💬

CAN Bus

Network communication testing. Verify CAN High/Low signals, check for open circuits, shorts, and module communication failures.

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Electrical, Alt and Draw

Electrical and Parasitic draw testing and current analysis. Find what's draining the battery using amp clamp patterns and sleep mode monitoring.

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Amp Analysis

Current ramp testing for fuel pumps, injectors, ignition coils, starters, and more. Non-invasive testing that tells you what's happening inside components.

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📦

Misc (Coolant, NVH)

Additional scope patterns, sensor testing, and reference waveforms that don't fit neatly into one category but are still essential knowledge.

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Why Scope Testing Matters

A scan tool tells you what the computer thinks is wrong. A scope shows you what's actually happening. It's the difference between guessing and proving.

Test Before You Replace

Scope testing proves the failure before you pull parts. Fewer comebacks, more profit.

Know What Right Looks Like

You can't spot a bad waveform if you've never seen a good one. This library fixes that.

Build Confidence

Every waveform you study makes the next diagnosis faster. This is how you level up.

Contribute to the Scope Library

This library grows with the community. If you have scope captures, Pico PSDATA files, or real-world diagnostic stories — we want them here. Submit your files and help other techs learn what right (and wrong) looks like.

📊 Baseline Testing

RC, VE, cranking tests

⚙ Cam and Crank

CKP/CMP, timing, chains

🔩 In Cylinder

Pressure transducer, compression

💬 CAN Bus

CAN High/Low, network faults

⚡ Electrical, Alt & Draw

Parasitic draw, amp clamp

⚡ Amp Analysis

Fuel pumps, injectors, coils

📦 Misc (Coolant, NVH)

Sensors, NVH, other patterns

Submit Your Scope Captures

Send your images, Pico PSDATA files, and the story behind the capture. Include the category, vehicle info, and what the waveform shows. All submissions are reviewed before publishing.

What to include:

• Your name and shop (optional)
• Category (from the list above)
• Vehicle year, make, model
• Scope image or Pico PSDATA file
• Brief description — what happened, what you found

Submit via Email →

gonzotr@gmail.com — Put “Scope Library Submission” in the subject line