Also, a great way to keep your injector always in a good state is using fuel additives this will give your injector cleanliness and increase engine performance. Hi There, I am R. Hasan Tito, a mechanic, and owner of this website. My friend and I created this website to share our knowledge, expertise, and experience with our fellow mechanics' community and car users. I have been working as a mechanic for over fifteen years. Among several automobile error codes, P is a common trouble code.
The code The Department of Motor Vehicles will issue a sticker for your windscreen after finishing the inspection of your car. This sticker shows you have attended the inspection. It will also show that you What is Fuel Injector? So you were just replacing the balancer for another reason and that happened none of this was happening?
In other words, it was starting fine before the harmonic balancer issue? Then how are you confirming you are not getting injector pulses? Initially was just replacing the balancer because it was coming apart, pulled to hard and crank sprocket cam off with the balancer, along with the timing belt.
This is probably my third time lining up everything making sure all my marks are spot on. I noticed I lost injector pulse and fuel pump prime when turning the key to "on" position, which led me to replace to crank shaft sensor. It s been sitting for about a year now while I only work on it when I have downtime.
It s like I m missing the signal to turn the injector and the pump on, the injectors have 12v as well as the crank sensor with key on.
Let's address the fuel pump first. The crank sensor only controls injector pulse and does not trigger the fuel pump to come on. So if the fuses and relays are okay then the pump should be coming on and creating fuel pressure.
The injectors may not fire if the crank sensor is bad but that pressure would still be at the rail waiting for the injectors to open. I attached a complete fuel pump test. Let's run through it and pay particular attention to the jumping power to the pump and see if it comes on. If it does then we need to check for pressure to make sure the pump is able to not only turn on but build the needed pressure. This asks you to pinch the fuel line to see if there is pressure.
That is fine for an initial test but we need the pressure gauge to make sure it is building enough pressure. Once we know we have proper fuel pressure, we can come back to the injectors. Let me know what questions you have and we can go from there. Thanks Images Click to enlarge. Thanks for the input, I m going to run out today and get a gauge to test fuel pressure.
I do know that if I jump the fuel pump via the relay I get fuel at rail. Also does the pump need pressure to preform the prime function? I know the pump is good and it pumps fuel. The cause of the bridge failure can be a sudden change in voltage.
Its consequence is that the electronic circuit will short circuit, the injector pulse will not appear. If the fuse and relay are normal, you will need to check the cylinder without the injector pulse. Specifically, when you remove the injector and your engine restarts usually, the injector is undoubtedly having problems. It would help if you replaced it immediately.
Also, another way you can check and find out the cause of no injector pulse is to measure the resistance. This way, you will compare the resistor value with the highest and lowest.
If the result is out of range, it means you need to replace the injector Because if you do not handle it in time, it will leave a lot of negative consequences; Typical is the reduction in engine power. At present, the pulse injector operates based on the PWM pulse mode controller. From there, under the action of pressure, the fuel will escape in the form of tiny drops. To diagnose no injector pulse, you can rely on one of the following 3 main causes: blown injector fuse, bad injector electrical relay, and bad wiring.
When cold, the cooling sensor is a crucial element of the fuel mixture. The crank sensor gives a signal about the exact moment to catch the spark plug. Hopefully, the article will help you overview the injector system and the cause of the no injector pulse. You need to understand the following 3 main reasons: blown injector fuse, bad injector electrical relay, and bad wiring. Your email address will not be published.
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