What causes the p0172 code on a Chevy Silverado?

The P0172 code on a Chevy Silverado will often be thrown if the fuel injection system is not operating properly. Typically the code will be triggered by a rich condition in the engine. There aren’t usually any drivability issues associated with P0172.

How to check p0175 with Bank 2 DTC?

P0175 with other Bank 2 DTCs – If you note only P0175, maybe concurrent Bank 2 DTCs, such as a cylinder misfire, focus your attention on Bank 2. Fuel Pressure Drop – With the engine running, record fuel pressure, then shut the engine off. Fuel pressure may drop slightly, but should remain stable for at least 10 or 15 minutes.

What is the relationship between p0175 and p0172?

P0175 with P0172 or MAF DTCs – If you note both P0175 and P0172 or concurrent MAF-related DTCs, then you can likely rule out individual cylinder, ignition, and fuel injector problems. Instead, focus on the fuel injection system and the MAF. MAF contamination could skew air intake measurements, therefore skewing fuel injection calculations.

What is the trouble code on a Chevy Silverado?

A common trouble code with the Chevy Silverado is P0175. This code number references a number that is given to you when you plug a vehicle into an OBDII scanner. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common.

What causes air flow code p0172 and p0175?

The fuel mixture grows rich and eventually, the code sets. An “over reporting” Mass Air Flow Sensor can be a common cause of a code P0172 and P0175. Essentially, this means that the Air Flow Sensor is telling the computer that much more air is entering the engine than actually is.

What does Bank 2 mean on Chevy Silverado?

P0175 is thrown when the oxygen sensors detect that the air fuel mixture is too rich. Bank 2 refers to the rich condition being detected on the side of the engine with cylinder two. A rich condition indicates that the air fuel mixture has too much fuel or not enough air. This would be the opposite of a lean condition, which’ll throw P0174.

What’s the difference between p0172 and p0175?

Now the p0172 and p0175 are gone. The new code is p0300 random misfire. The plugs and wires that were on the truck had to be the original ones they looked really bad. Do you think one of the coils are bad . Thanks. So I changed the spark plugs and wires.

What’s the alcohol Code on a 2006 Chevy Silverado?

Come along with Eric O. at the SMA shop as he has a look at this 2006 Chevrolet Silverado Flex Fuel with the engine light on and codes P0172 and P0175 Rich on Bank One and Rich On Bank 2. While this code can be a lot of different things the first thing you need to look at on this vintage GM is the Alcohol % Data PID.

How much does it cost to repair a p0175 Chevrolet?

The cost of diagnosing the P0175 CHEVROLET code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour. When is the P0175 CHEVROLET code detected? – Fuel injection system does not operate properly.

What causes the p0175 code to be thrown?

Vacuum Leaks – With the Chevy Silverado, one of the most common cause for the P0175 code to be thrown is a vacuum leak. Take a look around and see if you can find the vacuum leak. Here’s a great YouTube video on how to find a vacuum leak.