Autozone Scanner read P1151

MSNESSA89

MEMBER
2002 VOLKSWAGEN JETTA
135,000 MILES

The other day my check engine light came on then my car began to run sluggish. I took it to autozone and their scanner read P1151. I have a 2002 VW Jetta GLS with 135000 highway miles. Do you know what needs to be done to fix it and roughly how much? Thank in advance

1 Reply

ASEMASTER6371

MECHANIC
52,797 POSTS

SAE VAG Description
P1151 17559 Bank1, Long Term Fuel Trim, Range 1 Leanness Lower Limit Exceeded

Exhaust system components

Exhaust system components, removing and installing.

Fuel injectors

Fuel injectors, checking. See: Powertrain Management Computers and Control Systems Testing and Inspection Component Tests and General Diagnostics Fuel Injectors, Checking

Fuel pressure regulator and residual pressure

Fuel pressure regulator and residual pressure, checking. See: Powertrain Management Computers and Control Systems Testing and Inspection Component Tests and General Diagnostics Fuel Pressure Regulator and Residual Pressure, Checking

Fuel Pump (FP)

Fuel Pump (FP), checking. See: Powertrain Management Computers and Control Systems Testing and Inspection Component Tests and General Diagnostics Fuel Pump, Checking

Intake system

Intake system, checking for leaks (false air). See: Powertrain Management Computers and Control Systems Testing and Inspection Component Tests and General Diagnostics Intake Air System, Checking For Leaks (False/Unmetered Air)

Secondary Air Injection (AIR) system

Secondary Air Injection (AIR) system, checking for proper seal. See: Powertrain Management Computers and Control Systems Testing and Inspection Component Tests and General Diagnostics Secondary Air Injection (AIR) System, Checking For Proper Seal

Note:

Check vacuum lines for leaks.

As you can see, you cannot diag this here. Checks need to be done to determine the failure.

Codes never identify bad parts, just failed systems.

Roy