OBD Guide
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P1083

Fuel Control Mixture Lean Bank 1 Sensor 1

P1083 is an OBD-II diagnostic trouble code meaning: Fuel Control Mixture Lean Bank 1 Sensor 1. Common causes: vacuum leak in the intake system, malfunction of the mass air flow sensor (maf). Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Increased fuel consumption
  • Loss of engine power
  • Unstable idling
  • Check Engine Light Is On
  • Possible misfires

Causes

  • Vacuum leak in the intake system
  • Malfunction of the mass air flow sensor (MAF)
  • Clogged fuel injectors
  • Low fuel pressure
  • Oxygen sensor malfunction

How to Fix

  1. Check the intake system for vacuum leaks
  2. Check the performance of the mass air flow sensor
  3. Clean or replace fuel injectors
  4. Check fuel pressure and condition of the fuel pump
  5. Check and, if necessary, replace the oxygen sensor

Related codes

P0171P0172P0174

Error P1083 by Vehicle Brand

BMW

FAQ

What does the P1083 code mean?

P1083 is an OBD-II diagnostic trouble code that indicates: Fuel Control Mixture Lean Bank 1 Sensor 1

What causes a P1083 error code?

The most common causes of P1083 include: Vacuum leak in the intake system; Malfunction of the mass air flow sensor (MAF); Clogged fuel injectors; Low fuel pressure.

How do I fix a P1083 diagnostic trouble code?

To fix P1083: Check the intake system for vacuum leaks. Check the performance of the mass air flow sensor. Clean or replace fuel injectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1083?

Yes, but get it checked soon

How much does it cost to fix P1083?

The estimated repair cost for P1083 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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