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injectors

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Symptoms of a Bad or Failing Fuel Injector
Common signs include an odor of fuel in the car, engine performance issues, and the Check Engine Light coming on.
Symptoms of a Bad or Failing Cold Start Injector
Common signs include hard starting, a decrease in fuel efficiency, and engine performance issues.
Symptoms of a Bad or Failing Injector Control Pressure Sensor
Common signs include starting issues, engine misfires, the Check Engine Light coming on, and a decrease in power, acceleration, and fuel economy.
How to Ensure Fuel Injectors Are Receiving the Correct Voltage
Faulty fuel injectors affects fuel economy and can cause a misfire. Make sure your fuel injector receives enough power to work properly.
How to Replace a Fuel Injector
Fuel injectors are faulty if the smell of fuel is present in the vehicle, you have engine performance issues, or the check engine light comes on.
How to Flush a Fuel Injector
Clean fuel injectors help keep your engine running smoothly and efficiently. Clogged fuel injectors result in reduced fuel economy and loss of power.
How to Replace a Cold Start Injector
The cold start valve fails when there is leakage coming from the fuel line. The cold start injector may have failed if the vehicle does not start.
How to Replace Fuel Injector O-Rings
Fuel injector o-rings prevent fuel vapors from entering the car engine. O-rings for fuel injectors hold up to 750 psi and keep fuel from igniting.

Related questions

Question
98 Chevrolet Tahoe cranks but won't start.
Hi there. If your fuel pressure is normal (35 psi or higher) then check the spark plugs and see if they are getting burn spots. If they have burn spots, then the injectors may not be working. If the fuel...
Question
Will a v 6 chevy fuel injector fit in a 2.2 4 cylinder
The fuel injectors in a V6 versus a 4 cylinder motor will look the same and may even fit, but the orifice size of the tips may be different. Injectors have different size flow rates of how much fuel they...
Question
Are fuel injector banks and catalyst converters considered different issues and warranties?
Question sent to CS for warranty information regarding fuel injectors and catalytic converters for a Chevrolet 2010 V6-3.6L.
Question
What are the odds of all injectors(or however many it takes for truck not to start) get clogged up. Truck was running fine and now it won't start.
Hi there. Check the fuel injectors for power to the harness on each injector. Make sure that there is a voltage reference. If there is no voltage reference, then there may be an issue with the main harness from the...
Question
Check engine light flashing on &off&battery light flashing on &off also has a code of P0200 for injector circuit control and cylinder 5 misfire.
Hi there. Check the injectors and see if they are firing. The fuel injectors for the engine are one unit, so if the number 5 injector is not working and it needs to changed, then you will have to replace...
Question
Injector #2 not working
There are many reasons that may cause the injector not to work properly such as a faulty connection, dirty injector nozzle, bad wiring or a bad injector relay. If this injector is not working properly and spraying an even pattern...
Question
Check Engine Light is on
Code P0200 relates to a malfunction in the electrical connection or completion of the circuit to the injector. This usually causes an abnormal spray of fuel by this injector causing either a lean or rich fuel condition depending on whether...
Question
Misfire in cylinder number 8.
Hi there. The issue could be the spark plug not firing on cylinder 8, the fuel injector not atomizing on cylinder 8, or there could be a burned valve or a burned head gasket. Check the spark plug on cylinder...
Question
m y mechanic put a 5.4 3valve reman into my 2007 lincoln navigator.
Hi there. Check the cylinders that are misfiring for fouled out spark plugs or non working injectors. Look at the spark plugs and see if there is any burn marks or corrosion. If there is no signs of wear on...
Question
Gas consumption on my car.
Hi there. The readings that you are getting with the MAP sensor is correct. Since your vehicle is burning fuel like crazy, check the fuel filter for if its dirty. Check the injectors for if they are sticking and draining...
Question
im fuel injected. acts like no gas is coming through system. once i pump pedal it starts up alright
It's either a fuel or ignition issue, however you do have to check the air induction system, such as any idle air control valve, mass air flow sensor, and so forth. With regard to the fuel possibility, it's relevant that...
Question
No injector pulse but does spark.
Hello There, You are correct in that if the crankshaft position sensor or the pickup coil were bad there would likely not be any spark to the plugs. In relation to your no injector pulse problem, check the wiring harness...
Question
Misfire on my engine and I am getting an injector code 27. (OBD1)
Hi there. The injector output driver is not responding properly to the control signal. Check the wiring from the computer to the injector driver. If the noid light is flashing erratically, then the controller (computer) is not functioning correctly. You...
Question
Do I need fuel injector flush
If you have never had the fuel injectors service or you are having problems that need the injectors flushed then it should be done. If you are not having any problems then running good fuel and additives in the fuel...
Question
Truck cranks but won't start. Has good fuel pressure and spark. Engine will crank and run if you pour gas in the throttle body.
Hi there. Check the injectors harness with the key on and the engine off without trying to crank. There should be a voltage on one side of the harness supplying fuel to the injectors. Then crank the engine and back...
Question
Fuel injector.
Hello, the fuel injector circuit has a ground side and power side. 12 volts would be on one side and the ground side is pulse width modulated (a variable voltage signal) controlled by the computer. A series of tests would...
Question
My car stalls and my injectors stop spraying 1998 Nissan Sentra
Hello. If your car is stalling and it stops spraying fuel then most of the time this is caused by a failure in the crank position sensor. This is a common issue on this vehicle. When it fails the computer...
Question
I have to pump the gas to get the engine to turn over
Hi..if your vehicle is fuel injected (i.e., does not have a carburetor) by "pumping the accelerator" you are not giving it "extra gas" but rather you are admitting air (or more air) into the intake manifold. Pumping the accelerator on...
Question
I failed a smog check with the codes PO171 & PO174, saying the system is too lean on the bank 1 & 2. Can you tell me what the problem is?
Hi there. When the two codes P0171 and P0174 come up for a lean system on both banks of your engine, then either all of the fuel injectors are not working properly or your fuel pressure has dropped. Check the...
Question
tbi injectors
If there is power to the injectors, and they make an audible clicking noise (that is, mechanically the injectors are functioning) measure the fuel system pressure and be sure that the pressure is within Factory Service Manual specifications. If pressure...

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