The Qashqai is a beloved SUV due to its fuel efficiency and low emissions. It is also quite reliable despite some models having transmission and battery problems. Users also complain about the several Nissan Qashqai injector problems they experience.
There is a multitude of reasons for the Nissan Qashqai injector problems. The injectors in question can be dirty or completely clogged due to different materials. They can also be damaged and leak out all the fuel they’re provided with. The fuel pump can also go bad and ruin the injection process as a result. The injectors can also be installed improperly. Or they could just be dead and used up.
These problems are some of the most serious ones a Qashqai owner can encounter. The solutions to these issues range from simply cleaning the injectors, all the way up to replacing them. Either way, you should take a look at the problems and symptoms below before heading to a mechanic.
Dirty Fuel Injectors
A primary reason for the Nissan Qashqai Injector Fault is when one or more of the injectors are dirty. This will cause the injectors to disrupt the recommended air-fuel ratio.
Symptoms: Experiencing the symptoms depends on how dirty the injectors are. Common ones include a knocking noise along with the engine juddering.
Solution: Just clean the injectors to fix the problem. Of course, periodically cleaning them will prevent this problem from happening in the first place.
Cost: It’ll cost you around $50 to have them professionally cleaned. If you want to save a bit of money, then you can go DIY with a cleaner bottle for around $15.
Blocked or Clogged Fuel Injectors
Yes, dirty fuel injectors are a notable culprit of Nissan Qashqai injector problems. But blocked ones are a more serious issue. This can be due to dirt, carbon, or even metal fragments. As a result, the injectors will fail.
Symptoms: The signs vary from random misfires, all the way to the vehicle not starting up. You’ll most likely get a Check Engine light.
Solution: It is likely that you won’t need to replace the clogged injectors. The best way to get them cleared is via ultrasonic cleaning methods.
Cost: Having these components cleaned via an ultrasonic procedure will cost you at least $225.
Leaking Fuel Injectors
Another Qashqai Injector Fault is when the fuel injection system leaks out. The reason will most likely be a bad injector seal. This will not just ruin your car’s drivability but it will cause fuel losses as well.
Symptoms: Apart from the aforementioned power losses, you’ll also notice a smell of gas. The diesel will leak out in the front of the car and stain the ground.
Solution: You can hope that it’s the external leak mentioned above by replaceable bad O-rings. Otherwise, if you’ve got an internal leak, then the concerned injector has to be replaced.
Cost: A Nissan Qashqai injector O-ring costs around $1 so seal replacement shouldn’t be pricey. However, replacing the entire injector(s) will cost you at least $300.
Bad Fuel Pump
One of the Nissan Qashqai injector problems is when the fuel pump fails. This is a device that provides the injectors diesel. A bad pump will disrupt the fuel injection system.
Symptoms: There are several symptoms of a bad fuel pump. Recurring ones are the engine stalling and consuming more fuel.
Solution: While there are ways of fixing the pump, it is better if you just replace it.
Cost: The replacement will set you back at least $350.
The Qashqai Injector fault can also arise on installing the injectors but without properly inputting their codes. When the programming codes are not put in properly, the ECU messes up the injection system.
Symptoms: You’ll receive the engine trouble code P0202. This shows you that the injector circuit has encountered a problem.
Solution: Put all of the injector codes into the ECU.
Cost: You’ll spend zero if you do it yourself. Otherwise, a trip to the Nissan dealership will cost you at least $350.
Dead Fuel Injectors
Some Nissan Qashqai injector problems exist due to dead injectors. This can happen because of a lack of maintenance or just high mileage. The injectors can also die when the problems above aren’t diagnosed.
Symptoms: The indicators of dead fuel injectors include engine roughness and some trouble codes.
Solution: You’ll have to get the injectors checked out and then have them replaced.
Cost: As mentioned above, replacing the injectors will cost you at least $300.
So, these were the Nissan Qashqai 1.5 DCi injector problems. You are advised to look for any of the aforementioned signs of trouble and have them diagnosed immediately. Not fixing the Nissan Qashqai injector problems on time can leave you stranded on the road and ruin your engine.
How many injectors does a Nissan Qashqai have?
The answer is 4, as it is a 4-cylinder vehicle. Like most other vehicles, the Qashqai has 1 fuel injector per cylinder. You can easily tell the number of fuel injectors in a vehicle by checking out the number of cylinders it has.
How much does it cost to replace injectors on a Nissan Qashqai?
Injector replacements are commonplace in the Nissan Qashqai fitted with the 1.5 DCi engine. On average, you can expect to pay between $300 to $700 for injector replacements. Half of this value is the cost of parts while the other half’s charged in labor costs. It will typically take between one to two hours to replace the injectors.
Why does my Nissan Qashqai keep losing power?
Bad fuel injectors are mostly the culprits for your Qashqai or any diesel vehicle losing its power. Fuel injectors are responsible for spraying fuel. When they’re unable to do their job, they’ll disrupt the combustion process. So, the car won’t perform as it should.
How long do fuel injectors last?
The average lifespan of a fuel injector is from 50 to 100k miles. You should know the maximum mileage that your injectors can be taken to. Try to change them on time to prevent any problems that can destroy your engine.
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