OBD Guide

P3191

Engine Does Not Start

P3191 is an OBD-II diagnostic trouble code meaning: Engine Does Not Start. Common causes: faulty fuel pump, low battery. Estimated repair cost: $11–167.

Severity
🚨 Critical
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$11–167 (est.)

Symptoms

  • Engine won't start
  • The engine turns over but does not start
  • No spark
  • Low fuel pressure
  • Check Engine Light Is On

Causes

  • Faulty fuel pump
  • Low battery
  • Problems with the ignition system
  • Faulty crankshaft position sensor
  • Damaged wires or connectors

How to Fix

  1. Check battery charge
  2. Check fuel pressure
  3. Check the ignition system for spark
  4. Check crankshaft position sensor
  5. Check the integrity of wires and connectors

Related codes

FAQ

What does the P3191 code mean?

P3191 is an OBD-II diagnostic trouble code that indicates: Engine Does Not Start

What causes a P3191 error code?

The most common causes of P3191 include: Faulty fuel pump; Low battery; Problems with the ignition system; Faulty crankshaft position sensor.

How do I fix a P3191 diagnostic trouble code?

To fix P3191: Check battery charge. Check fuel pressure. Check the ignition system for spark. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P3191?

Yes, but get it checked soon

How much does it cost to fix P3191?

The estimated repair cost for P3191 is $11–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat