Engine loss power good fuel but no spark at coil or plugs

Possibly loss of compression inside your engine. Which is caused by hole in your engine, cracked block... a lot of things.
Stick your finger in one of the spark plug holes. Spark plug out. While someone is cranking the vehicle, if pressure pushes your finger back then your good on compression. If nothing. Then you need to find where your losing compression.

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Did you disconnect the battery?
Did you reset the vehicle security and engine immobilizer?
Did all the wires go back in the right place?

Check to see if the switch and terminals are free from rust and replace any damaged or broken spark plugs wires as necessary. Alternatively, it could be a bad ignition module. A simple way of testing the ignition module is to leave the car idling for 30 minutes and then tap the ignition module with a screwdriver.

No Spark From Distributor To Plugs: How To Test + 6 Causes

RepairSmith https://www.repairsmith.com > blog > no-spark-from-dist...

How to Diagnose a No-Spark or Loss of Power Condition ...

YourMechanic https://www.yourmechanic.com > article > how-to-dia...
Sep 21, 2016 - If you see a good spark at the coil, but not at the spark plug, then the problem may be caused by either a bad distributor cap, rotor, or carbon ...

‎Part 2 of 4: Test the coil pack · ‎Part 3 of 4: Test the spark plug...

10 Reasons Your Car Won't Start (and What to Do About it)

canadadrives.ca https://www.canadadrives.ca > blog > maintenance > r...
Your engine may not start if an ignition coil isn't firing up a spark plug. It could be a faulty coil, a poor connection to the ignition coil, or a control ...

How to Diagnose a Loss of Spark in Your Car Engine

wikiHow https://www.wikihow.com > ... > Engine Parts
To diagnose a loss of spark in your car engine, check your fuse box for any black spots on the fuses. If you notice one, the fuse might have blown. If there are ...

‎Checking the Basics · ‎Checking for Timing Issues · ‎Checking the Ignition Coil ..

HAVE YOU CHECKED AT ALL WHETHER IS THE FUEL PUMP ITSELF,OR FUEL PRESSURE DROPPED,OR ANY FUEL FILTER
BLOGGED? GOOD LUCK.

Get a pressure reading on the fuel pump,it sounds like a classic fuel pump going out. If it idles but cant go much faster than that then I am pretty sure is a fuel pump.

Cauases or fault codes are not cut and dry, but here are the possible causes of codes P0316 and P0306 which are related codes.
P0316 - Engine Misfire Detected on Startup
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Engine fails to start
- Engine runs rough Possible causes - Crankshaft Position (CKP) sensor harness is open or shorted
- Crankshaft Position (CKP) sensor circuit poor electrical connection
- Faulty Crankshaft Position (CKP)
- Ignition System
- Fuel Injectors
- Running out of fuel
- Fuel Quality
- Faulty Engine Control Module (ECM) P0306 - Cylinder 6 Misfire Detected Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Lack/loss of power
- Hard start
- Engine hesitation
Possible causes - Faulty spark plug 6
- Faulty ignition coil 6
- Ignition coil 6 harness is open or shorted
- Ignition coil 6 poor electrical connection
- Clogged or faulty fuel injector 6
- Injector 6 harness is open or shorted
- Injector 6 poor electrical connection
- Improper spark plug 6
- Insufficient cylinder 6 compression
- Incorrect fuel pressure
- Intake air leak

could be bad coil pack or spark plugs check coil for cracks causing it to intermitenly fire or bad plugs causing power loss.

Main causes of misfire would be loss of spark; the air/fuel mixture is too far out of balance to ignite; or loss of compression.

Loss of spark includes anything that prevents coil voltage from jumping the electrode gap at the end of the spark plug. Causes include worn, fouled or damaged spark plugs, bad wires or even a cracked distributor cap. A weak coil or excessive rotor gas inside a distributor would affect all cylinders, not just a single cylinder.

"Lean misfire" can occur when the air/fuel mixture is too lean (not enough gasoline in the mixture) to burn. This can be caused by a dirty, clogged or inoperative fuel injector; air leaks; or low fuel pressure because of a weak pump, restricted filter or leaky pressure regulator.

Loss of compression means the cylinder loses most of its air/fuel mixture before it can be ignited. The most likely causes here are a leaky (burned) exhaust valve or a blown head gasket. If two adjacent cylinders are misfiring, it's likely the head gasket between them has failed. Also, if an engine is overheating or losing coolant, it's likely the head gasket is the culprit.

You can isolate the weak cylinder by temporarily disconnecting each of the spark plug wires, one at a time, while the engine is idling. When there's no change in the idle speed, then you have pinpointed the weak cylinder.

Main causes of misfire would be loss of spark; the air/fuel mixture is too far out of balance to ignite; or loss of compression.

Loss of spark includes anything that prevents coil voltage from jumping the electrode gap at the end of the spark plug. Causes include worn, fouled or damaged spark plugs, bad wires or even a cracked distributor cap. A weak coil or excessive rotor gas inside a distributor would affect all cylinders, not just a single cylinder.

"Lean misfire" can occur when the air/fuel mixture is too lean (not enough gasoline in the mixture) to burn. This can be caused by a dirty, clogged or inoperative fuel injector; air leaks; or low fuel pressure because of a weak pump, restricted filter or leaky pressure regulator.

Loss of compression means the cylinder loses most of its air/fuel mixture before it can be ignited. The most likely causes here are a leaky (burned) exhaust valve or a blown head gasket. If two adjacent cylinders are misfiring, it's likely the head gasket between them has failed. Also, if an engine is overheating or losing coolant, it's likely the head gasket is the culprit.

You can isolate the weak cylinder by temporarily disconnecting each of the spark plug wires, one at a time, while the engine is idling. When there's no change in the idle speed, then you have pinpointed the weak cylinder.

here are the common causes of a missfire, defective ignition coil or ignition coil wiring for that cylinder, defective fuel injector, defective powertrain control module, intake manifold vacuum leak, low cylinder compression.