Free API
P0103moderate severityPowertrain

Mass Air Flow (MAF) Circuit High Input

on 2005 Dodge Neon 2.0L I4 SOHC · FWD

What this code means

The MAF sensor signal voltage is higher than the maximum expected value.

Symptoms

  • Check Engine Light
  • Lean fuel condition
  • Poor acceleration
  • Engine surge

Common causes

  • Faulty MAF sensor
  • Short to voltage in signal wire
  • Water damage to sensor

Diagnostic steps

  1. Check MAF sensor connector
  2. Test signal voltage
  3. Inspect wiring for shorts to power
  4. Test sensor output

Repair notes

Replace MAF sensor or repair wiring.

Other Powertrain codes on this vehicle

For shop owners
Diagnosing for customers?
Text them the estimate with photos and get approval in minutes with Auto Shop Base.
Talk to the ownerSee what's included
Built by a shop owner. Talk to Chris, not a sales rep.
🔧 Built by master technician Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
Stuck on this repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
⚠ STILL BEHIND THE PAYWALL
The 2005 Dodge Neon repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the Dodge Neon — $99 →
Building an app?
Free API access to all this data — 10 requests/day, no card required.
Get an API key →
Run a shop?
A free website, SEO and Google reviews with your shop software. Auto Shop Base Professional, $250/mo, with our labor times on every estimate.
See what's included →