2003-2020

350Z / 370Z

G35 / G37

DIAGNOSTIC SERVICE

Professional Diagnostic Solutions for Nissan & Infiniti VQ35DE, VQ35HR, VQ37VHR Platforms

• Read & Clear DTC Codes

• Live Data Monitoring

• Analyze Datalogs

• Diagnose Performance Issues

UPREV & ECUTEK

Vehicle Diagnostic Software

LACK OF POWER?

Identify issues related to fuel delivery, ignition timing, airflow, MAF sensors, cam/crank sensors, and engine health.

BANK TO BANK DIFFERENCE?

Analyze fuel trims, air/fuel ratios, knock activity, cam timing, and airflow imbalances between banks.

READ DATALOGS

Review engine data, fuel trims, ignition timing, knock correction, throttle position, MAF readings, and VVEL operation.

DIAGNOSE PROBLEMS

Find the root cause of misfires, hesitation, poor acceleration, idle issues, lean conditions, rich conditions, and check engine lights.

DIAGNOSE. UNDERSTAND. FIX. RESTORE PERFORMANCE.

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How It Works

Step 1 — Purchase the Service

After checkout, you’ll receive instructions on how to send us your diagnostic information.

Step 2 — Send Your Files

Depending on your setup, we may request:

• Datalogs

• Calibration files

• Read files

• Current tune file

• ECU information

• Engine modification list

• Videos of the issue

• Trouble codes

Step 3 — Review & Analysis

We’ll carefully review your setup and data to identify possible causes of the issue.

Step 4 — Diagnostic Report

You’ll receive a detailed response with:

• Our findings

• Recommended fixes

• Suggested next steps

• Tuning recommendations if needed

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Why Choose Kugan Tuning?

At  Kugan Tuning, we work with Honda performance platforms every day.

From simple bolt-on setups to high-horsepower turbo builds, we understand how to properly diagnose Honda tuning and drivability issues using real-world experience — not generic scan tool guesses.

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Important Notes

• This service is for diagnostics and consultation only.

• Additional tuning services may be required depending on the issue.

• Hardware failures cannot always be fully confirmed remotely.

• Please provide accurate information for the fastest turnaround time.

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Common Setups We Support

• Hondata KPro / FlashPro

• KTuner V1.2 / V2

• FuelTech FT450 / FT550

• Haltech Elite Series

• OEM Honda ECUs

• Custom standalone ECUs

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Turnaround Time

Most diagnostic reviews are completed within 1–3 business days depending on complexity and response time from the customer.