What causes injectors not to fire?
So, the most likely cause, is that the fuel injectors are probably not opening. The (PCM) uses the trigger signal from the crankshaft position sensor; and/or camshaft position sensor to pulse the injectors.
How much does it cost to fix a fuel injector?
On average, you can expect to pay between $350 and $850 to replace your fuel injectors. The range of costs depends on a number of factors. Smaller vehicles with fewer cylinders requiring less expensive parts will come in at the lower end of the spectrum. Larger, high-performance engines will command a higher price tag.
What causes an injector to fail in a car?
Typically, when injectors fail, the solenoids often short internally, causing a drop in resistance. If the specification calls for 3 ohms and an injector measures only 1 ohm; it will pull more current. Too much current flow to an injector; may cause the (PCM) injector driver circuit to shut down.
What kind of spark tester do I need to start my engine?
You can do this test without a spark tester, but it’s better to use one because a weak spark as well as a missing spark can prevent your engine from starting. If possible, use an adjustable tester so that you can test for 40KV, 30KV, and 10KV spark.
Why is the Check Engine light not coming on?
Even if the check engine light hasn’t come on, you may find a pending code that can guide you in your diagnosis. False input or lack of input from sensors like the crankshaft position sensor (CKP) or camshaft position sensor (CPS) can prevent the engine from starting.
Where is the fuse for the fuel injector located?
Blown injector circuit fuse Bad fuel injector power relay A fault in the wiring harness to the injectors So, the injector fuse and relay are usually located; in the relay box or power distribution center in the engine compartment. Fuses are used to protect various electrical circuits, while supplying power to components.