BOBCAT-P0101 moderate Bobcat ›

Mass Air Flow / MAF Sensor Performance

The BOBCAT-P0101 (Bobcat) diesel fault code means: Mass Air Flow / MAF Sensor Performance. This is a moderate severity code.

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Keep driving?
Yes, but fix soon
DIY difficulty
beginner
Estimated cost
$20-$350
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Common Symptoms

  • Power loss
  • Increased smoke during acceleration
  • Rough idle

Probable Causes (Ranked by Likelihood)

  • Intake leak between MAF and turbo (common on track loaders from vibration) Likely
  • Plugged air cleaner element Likely
  • Contaminated MAF sensor Possible

Frequently Asked Questions

What is Bobcat code P0101?

Bobcat P0101: Mass Air Flow / MAF Sensor Performance. This code is reported on Bobcat equipment running the described engine family.

Can I keep working with Bobcat code P0101?

Usually drivable short-term, but fix soon to avoid derate or DPF issues.

How much does Bobcat P0101 cost to fix?

Estimated repair cost: $20-$350. Off-road diesel shop labor runs $125-$175/hr in 2026. Dealer diagnostic software (Bobcat Service Analyzer) is usually required.

Mechanics Guide Step-by-step diagnosis

Step-by-Step Diagnostic Procedure

  1. Inspect charge-air cooler boots and silicone couplers for splits.

  2. Service Bobcat air cleaner per daily walk-around spec.

  3. Clean MAF with CRC MAF-safe cleaner only, never rag.

Sources 1

This page is built from documented references. Verify against your own service info before repair work.

  • SAE J2012Diagnostic Trouble Code Definitions (defines P0101 as a generic OBD-II code)

P0101 on Other Platforms

The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:

Gas / Automotive (OBD-II) Generic OBD-II definition for P0101 Duramax moderate Mass Air Flow Sensor A Circuit Range/Performance Hino moderate MAF Sensor Circuit Range/Performance Isuzu moderate MAF Sensor Circuit Range/Performance PACCAR moderate MAF Circuit Range/Performance Power Stroke moderate MAF Sensor Range/Performance Yanmar moderate MAF Sensor Circuit Performance

Commonly Affected Vehicles

  • Bobcat S650 skid steer loader (Kubota V3800)
  • Bobcat S740 / S750 / S770 / S850 skid steer loaders (Kubota V3800)
  • Bobcat T650 / T750 / T770 / T870 compact track loaders (Kubota V3800)
  • Bobcat E50 / E55 / E60 / E85 mini excavators (Kubota V3800)
  • Bobcat UW56 utility vehicle (Kubota V3800)

Related Codes

BOBCAT-P0299

Explore More

More Bobcat codes → Diesel home All diesel codes Heavy-duty Guides

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