Why are the fuel injectors not injecting electrically?
You say the injectors are injecting electrically (Scope) and if your live data and compressions are correct then either the fuel is a bit diluted or it isn’t injecting enough. If it starts and runs fine with a spray then it shouldn’t be too difficult to track down.
What causes a car engine to backfire when the injector wears out?
Usually, when an injector clogs or wears out, causing the air-fuel mixture to lean, the combustion process weakens and fails to properly burn the fuel. Too much unburned fuel then enters the exhaust system where the fuel ignites with a loud bang.
Which is more sensitive to idle tuning commander 950 or Holley?
In fact, I believe the Holley HP/Dominator ECU is more sensitive to idle tuning (idle algorithm), than the Commander 950 is; meaning it’s easier to achieve a good idle with the C950. I tried to disregard what I thought I knew about idle tuning and start with a fresh mindset…I’m glad I did.
What should the target idle speed be for a hot engine?
If the hot engine idles in between two temperature cells on the Target Idle Speed scale, set the temperature cell before & after the target idle, to the same RPM; so the ECU doesn’t vary the idle speed. Most high performance engines will idle well with a target air/fuel ratio between 13.5:1 & 14.2:1.
Can a bad fuel injector cause cel to come on?
Although this could mean a lot of things, a bad fuel injector could be one of them. Any time an injector delivers less fuel than needed (or more in some cases), the engines efficiency is lowered and can trigger the CEL to come on. Use an OBD2 scanner to confirm the issue.
What does it mean when your fuel injector is leaking?
This means the fuel won’t be able to reach the nozzle but instead, it will leak from the body. If you check the fuel injector, you will notice gasoline on the exterior or on the nearby fuel rail. Often, the leak is coming from the fuel injector seal which deteriorates over time.
What should I do if my fuel injector breaks?
A good kit (like this OTC set) will include various adapters to allow you to work on most fuel injected vehicles. Fortunately, most fuel injector issues can be fixed with a professional cleaning or replacement of the O-rings if a leak exists there. But when a fuel injector cracks or breaks, replacement is necessary and it can be expensive.
In fact, I believe the Holley HP/Dominator ECU is more sensitive to idle tuning (idle algorithm), than the Commander 950 is; meaning it’s easier to achieve a good idle with the C950. I tried to disregard what I thought I knew about idle tuning and start with a fresh mindset…I’m glad I did.