What causes both banks to be lean?
What causes both banks to be lean?
Lean conditions are often caused by air entering the system somewhere where it cannot be monitored. Two main areas for this would be the intake system, usually after the MAF sensor, or a vacuum leak somewhere in the intake.
What does it mean when engine Bank 2 is too lean?
A lean condition is brought about by an imbalance in the air to fuel ratio due to either insufficient fuel (from, say, a weak fuel system) or excessive air entering the engine. The bank 2 portion indicates that the problem is concentrated on the side of the engine opposite the #1 cylinder. The error codes for these conditions are P0171 and P0174.
What to do if Ford fuel injection system is too lean Bank 1?
Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. P0171 FORD Tech Notes If the P0171 is combined with the P0174 code, it’s very likely that the problem is caused by an intake leak. If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter.
What is the trouble code on a Ford Ranger?
One of the most common trouble codes with the Ford Ranger is the P0174 code. This code number references a number that is given to you when you plug your truck into a OBDII scanner. The code is often accompanied by the P0171 code, which has the same set of symptoms, but is for bank one.
What does the code p0174 mean on a Ford Ranger?
Ranger P0174 Code Defined. P0174 is an OBDII trouble code. The code technically stands for: Fuel Trim System Lean Bank 2. The code is thrown when the oxygen sensors detect that there’s not enough oxygen in the exhaust system. This is commonly referred to as a “lean” condition.
A lean condition is brought about by an imbalance in the air to fuel ratio due to either insufficient fuel (from, say, a weak fuel system) or excessive air entering the engine. The bank 2 portion indicates that the problem is concentrated on the side of the engine opposite the #1 cylinder. The error codes for these conditions are P0171 and P0174.
What is the OBDII code on a Ford Ranger?
One of the most common trouble codes with the Ford Ranger is the P0171 code. This code number references a number that is given to you when you plug your car into a OBDII scanner. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common. P0171: Fuel Trim System Lean Bank 1. P0171 is an OBDII trouble code.
What causes the p0171 code on a Ford Ranger?
Vacuum Leaks – With the Ford Ranger, one of the most common cause for the P0171 code to show is a vacuum leak. Take a look around and see if you can find the vacuum leak.
What kind of engine does a 2000 Ranger have?
I have a 2000 Ranger, with a 4.0 V 6, 4X4, with 175,000 miles and it still runs great except the check engine light is on and it is saying that both banks are lean. I put in new plugs, all 3 O2 sensors, cleaned the MAF and checked for vaccum leaks, all to no avail… does anyone have any idea what else could be the problem…HELP
