When the battery on a Nissan Micra goes totally flat, the electronic locking system won't work, so you can't open the door. One of the tests you can do on a dead injector is by checking the injector's coil. You can also test the injector controlling circuit using a noid light. The answer key is below. What could be wrong? This article will explain how they operate and how you can avoid future problems. If can't see anything, do what Fuelshop said. send them in, for $19/injector, its well worth the week it takes to ship them, have them done and be back in … Answer: Make sure the pump is receiving adequate voltage. Repeat this test on each injector and take note of dead injectors, so that you can test them in the following section. Without a set of good tires, your car will not run smoothly and your engine will use more gas than it should. See what was the most effective! 3d 1940 A5E2v1 A5E2v2 acert ADEM V aftermarket automobile bondurant brand c8.7 c13 c15 carbon caterpillar classic parts dealer defects ecm engine Engines fast moving parts foundamentals fuel Games gazogene henry ford heui injector job caterpillar lawless marine memory novel numeralkod poppet valve RINA safety Service Information System Technology testing video virginia welding yellowmark See if you can pull the injector you want to check and watch the sensor while cranking the engine for a few seconds. Often, these injectors face common problems you can diagnose visually (TBI), or with the use of some simple tools. Are you noticing a problem with the fuel system in your CAT C15 diesel engine? For each question, choose the best answer. Cat fuel injectors deliver to your internal combustion engine the correct amounts of fuel at the right moments for prime performance. Are you tired of shelling out your precious ducats for an oil change every month? If necessary, buy an inexpensive, aftermarket repair manual at your local auto parts store or online. (07-09-2019, 07:09 AM) Poptest Wrote: Engine runs fine, and power is good, but lube oil is diluted with diesel fuel on a CAT C7 engine. Test piezo injectors of different models automatically. Check the spray pattern coming our of the injector. This is the easiest way to test an injector feeding circuit. Answer: The easiest way is to listen to the injector with a mechanic's stethoscope or a length of hose. Question: Do TBI injectors have to be placed facing a certain way? Usually, this is due to a bad spark plug wire, coil or fuel injector. When this happens they cause a leak-down, resulting in a reduction of fuel pressure across the fuel rail. While driving, it is perfect until it starts misfiring. Shop Local View local pricing and inventory as well as place orders online. The cylinder cutout test can be performed on one injector or multiple injectors at once. With the engine off, unplug the electrical connector of the injector you need to test. The injectors on the multiport fuel injection system of your vehicle feed the intake valves during engine operation. The sound comes from the solenoid inside the injector activating and deactivating the injector's valve. 8.HEUI/CRI-TEST BENCH is high pressure common rail injector and middle pressure. That set of injectors have 5 different trims numbers for each injector to raise or lower fuel flow, while also staying perfect balanced to each other. You may need to test the injector. For example: If your meter reads infinite resistance, it means the coil in the injector is opened. However, a long standard screwdriver or even a piece of thin hose of the appropriate length will work just as well. 1. Sometimes, if the injector body is cracked externally, you may be able to notice a small wisp of smoke from the injector. Apply the parking brake and open the hood. Your safety will also be at risk if you’re using the wrong tires for your car. Question: How would you know whether a fuel injector is operating or not? Answer: Hard to tell, but it can happen--depending on the model configuration--when the fuel pressure regulator diaphragm goes bad and starts leaking fuel into the throttle-intake; or another source of a leak that is "flooding" the throttle. * If this is a dead injector and the power and the pulse signals are present, replace the injector. yeh you might test the function of the injector, but that means nothing. When troubleshooting electronic components on your car with a digital multimeter, always use a 10 Megohm (minimum) impedance multimeter to prevent circuit damage. The contents of this forum are for experimental & educational purposes only. However, if the injector is clogged, even if it's working it'll not spray any fuel. 5. You have to be careful while doing this test and not drop anything thought the injector hole while it is out. Unlike injectors on throttle body fuel injection (TBI) systems, those used on an Electronic Fuel Injection (EFI) configuration don't have their fuel spraying accessible for inspection. Want to save on an expensive car bill? Member/s doing such will be membership revoked. CAT C15 Diesel Fuel Injector Problems. With a light, study the injector body of each cylinder. When it is going, she pulls like a train. Here's how to unlock your Nissan Micra when the battery dies. Look up the electric diagram for your model. With a misfire, you may get other codes caused by a bad injector (P0204), EGR system. CAT engineer advises to replace all injectors. Read More: How to Connecting Caterpillar ET Software to the ECM. Question: What is the cause of an inoperative fuel pump? - Checking the Injector Controlling Circuit, Quiz - Test Your Knowledge of EFI Systems. * Fuel should come out partially atomized in an inverted V pattern. And if you haven't used a multimeter before, check the next video for a quick review on how to operate a multimeter. Question: How do you test a badly worn needle and nozzle body of an injector? Diesel Injector Nozzle Pop Tester, CAV England Design - Heavy Duty & Long Life. Check the Harness between the ECM and the Valve Cover Base for a Short CircuitA. With the engine off, unplug the electrical connector of the injector you need to test. If that sounds like your engine, you may be ready for a new set of fuel injectors. However, this is possible in some models and much harder to do in other models. Usually, you'll get a lean code (P0171 or P0174). You can look up the injector resistance value in the service manual for your particular vehicle make and model. If the misfire is reported on cylinder 1, for example, swap wires or coil with other cylinder and see if the misfire moves as well. Table 3; Troubleshooting Test Steps: Values: Results: 6. Here I give you all the lessons I've learned so you too can make a nice weekly or monthly profit and have fun learning to flip cars for a living. I used everything from ozone to car deodorizer bombs, pet odor eliminators, canisters, vent clips, sprays, syringes, liquids and fresh air. If you decided to use a long screwdriver, place the tip of the screwdriver against the body of the injector and the end of the tool's handle against your ear. Engine runs fine, and power is good, but lube oil is diluted with diesel fuel on a CAT C7 engine. Having your motorhome's powered entrance steps stop operating is one of the problems that motorhome owners will run into. Follow the instructions that come with the tool. Answer: Removing the sensor and watching its operation while out of the fuel rail can give you some clues about fuel flow and atomization. The cylinder cutout test disables the injector by not providing the injector pulse to the solenoid. Here's what you'll need to do to bring one home. Is your window stuck? $99.00 $ 99. Reman Fuel Injectors; Cat® Reman Products. Check for fuel pressure and (if possible) volume. We replaced 6 injectors on my cat 3126 ser #07as44193 , now we can not get truck running. At certain times you may be able to find incredible bargains on Canadian vehicles, including those made in the US and sold in Canada. Operational fuel injectors will have the same, or very similar, Ohm values. 5.0 out of 5 stars 1. However, you can use a couple of tests that can reveal whether one or more injectors are working on your EFI system and whether the fault is within the injector itself or the controlling circuit. The noid light connects to the harness of the fuel injector you want to test. Photo courtesy of SPE Automotive Division on Flickr. If your fuel rail does not have a pressure test fitting, use a fuel line wrench to disconnect the fuel inlet line just behind the fuel rail. So it's hard to check the spraying pattern of each injector without the proper equipment. Have an assistant crank or start the engine. Question: Audi 2.0 TDI. If you can't back probe the wire, insert a pin through the wire and use the pin to probe the wire. Attach a T fitting between the fuel line and the injector inlet location. This article is accurate and true to the best of the author’s knowledge.