P1350 — Fuel Level Sensor B Intermittent/Bypass Line Monitor

What Does P1350 Mean?

P1350 is a manufacturer-specific diagnostic trouble code: Fuel Level Sensor B Intermittent/Bypass Line Monitor. This code applies to OTHER, VOLKSWAGEN, LEXUS, BMW, MERCEDES vehicles. Unlike generic OBD-II codes, manufacturer-specific codes are defined by the vehicle maker and may only apply to certain makes and models.

Symptoms of P1350

⚠️ Check Engine Light (MIL) illuminated
⚠️ Fuel Level Sensor B signal cutting in and out
⚠️ Related system working sometimes but not consistently
⚠️ Reduced engine performance

Common Causes

🔍 Loose or intermittent connection at Fuel Level Sensor B
🔍 Wire chafing causing intermittent contact
🔍 Fuel Level Sensor B failing under heat or vibration
🔍 Corroded connector pins with partial contact

Frequently Asked Questions

What does P1350 mean?

P1350 indicates: Fuel Level Sensor B Intermittent/Bypass Line Monitor. The vehicle's computer has detected that the Fuel Level Sensor B is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P1350?

Yes, P1350 is generally safe to drive with in the short term. However, it should still be addressed to pass emissions testing and prevent potential secondary issues.

How much does it cost to fix P1350?

Repair costs for P1350 typically range from $30 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect and reseat all Fuel Level Sensor B connectors
🔧 Repair chafed or damaged wiring in Fuel Level Sensor B circuit
🔧 Replace Fuel Level Sensor B if failing intermittently

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P1350: Fuel Level Sensor B Intermittent/Bypass Line Monitor