How Much Does A Fuel Injection Service Cost

A fuel injector is essentially a solenoid with a fuel supply and a spray nozzle. It is continued to a fuel rail, and when the solenoid is energized a valve opens allowing fuel to pass through the nozzle terminate. The fuel injector is supplied with fuel pressure level from the rail and the ECM (electronic control module) controls the electric signal to the injector; opening it for a specific amount of time and injecting the proper amount of fuel into the cylinder.

There are iii main kinds of gas-engine fuel injector:

TBI, or throttle body injector – This is the simplest and oldest ready-upwards, where a unmarried injector sits in the throttle body and supplies the fuel for the engine. It's fairly easy to diagnose and supplant.

Multiport fuel injector – It just means there's a carve up injector for each cylinder. This is past far the most mutual set-up, with some advantages in efficiency over the older TBI system.

Straight injection – This uses a single injector for each cylinder, but instead of spraying into the intake organization they inject fuel direct into the combustion sleeping room. This is slightly more efficient, and is becoming more common. Disadvantages are that the intake valves don't stay as make clean without fuel spray, and the injectors themselves are bailiwick to the pressures and conditions of the combustion chamber.

What Does It Price To Repair a Fuel Injection System?

The boilerplate cost to supersede a fuel injector on about vehicles, which is i of the more common repair needs, would be nigh $140, excluding diagnosis.

Diagnosis is ordinarily an hour of labor, though if an injector fails electrically and triggers a lawmaking the diagnosis of that is almost equally elementary as they come, and many shops would fold that into the replacement labor.

Because fuel injection is a complex arrangement, the costs associated with a repair can vary fairly widely. Here are a few more specific examples of the fuel injector replacement cost on common vehicles in society to get a meliorate understanding of what is involved in a repair (using an average shop rate of $eighty per hr equally a baseline).

one. A 2014 Dodge Journey 3.6L has a check engine light and a misfire. The technician gets code P0304 for a cylinder 4 misfire. After diagnosing, they find that the cylinder four injector wiring is open.

Diagnosis – 1.0hr at $eighty/60 minutes, $80
Wiring repair – 0.5hrs at $80/hr, $xl
Full cost of repair – $120

2. A 2012 Ford Focus ii.0L has a check engine light and a misfire. The technician pulls codes and diagnoses an open up in the cylinder 2 fuel injector.

Diagnosis – 1.0hr at $fourscore/hour, $80
Remove and supersede directly injector – i.1hrs at $eighty/hr, $88
Fuel injector – approx. $85
Total cost of repair – $253

iii. A 2008 Chevrolet Cobalt 2.2L has an intermittent rough idle with a check engine light. The technician diagnoses injectors sticking and recommends an injector cleaning.

Diagnosis – 1.0hr at $80/60 minutes, $80
Injector cleaning – 0.9hrs at $80/hr, $72
Injector cleaner – approx. $l
Total cost of repair – $202

4. A 2015 Audi A4 2.0L runs crude and lacks power. The technician diagnoses the high-pressure fuel pump as failed.

Diagnosis – 1.0hr at $80/hr, $80
Remove and replace pump – 0.9hrs at $80/hr, $72
Fuel pump – approx. $310
Full price of repair – $452

As we run across, the price to supercede fuel injectors tin can vary adequately widely depending on what blazon of repair is needed which can be anywhere from $10 to $200 for a simple electric repair or injection cleaning service, and it can run much higher if more parts and diagnosis are involved.

What Tin Go Wrong With Fuel Injection Systems?

Fuel injection systems tin fail in two main ways – either a mechanical or electrical failure.

Mechanical failures of the injection system differ depending on the blazon of organization in the vehicle. For multiport injection, it can include leaking or sticking injectors, fuel pressure regulators, injector seal leaks, as well as clogged spray ports. For straight injection, information technology includes faulty injectors, high-pressure fuel pumps, leaks, or internal engine harm.

Electrical failures affect the solenoid side of the injector, and they can be caused by a failed solenoid winding, bad connection, faulty wiring or a bad ECM. On a mod vehicle this will set a code and plough on the engine lite, and then diagnosis follows the specific code. The circuits involved are relatively simple, and diagnostics are straightforward nigh of the fourth dimension.

How Can You Avoid Fuel Injection Repairs?

Many manufacturers recommend an intake system cleaning on a 15,000 to 30,000-mile interval. This runs cleaning additives through the intake system and the fuel organisation, and (at least in theory) keeps the injectors in good shape. The gas additive cleaner is the more important thing for cleaning injectors and maintaining a proficient spray design, and information technology can be washed but and cheaply with products widely available to consumers.

FAQ

Can you lot bulldoze with a bad fuel injector?

Aye, but information technology's a bad idea. A misfire is usually acquired, and that either puts the engine into limp mode, or circulates raw fuel into the exhaust where it can harm the catalytic converter.

Volition a bad injector throw a code?

Aye. Whether the failure is on the electrical side or the fuel side it would cause a misfire which the ECM would detect, setting a code and turning on the bank check engine light.

How long does a fuel injector last?

There is no predictable service interval or expected lifespan, so injectors are usually only replaced when they accept failed.