If the engine was running prior to changing the plugs but now will not, we need to assume that this is related to spark. In order to start the engine, you need spark, fuel, air, and compression.
So, let's start with this guide and go from there:
https://youtu.be/dCjmRL3p4Cs
https://www.2carpros.com/articles/how-to-test-an-ignition-system
I would just pull a plug, hold it against the block, crank the engine, and see if it sparks. If it does then we need to check the fuel pressure.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
If there is no spark, then we need to make sure the coils are fully seated and plugged in.
The last thing we need to do is turn the key on and make sure the theft light turns off. If it stays on or flashes then you have an active theft system.
https://www.2carpros.com/articles/how-to-reset-a-security-system
Please run through this and let us know if there is spark or not and we can go from there. Thanks
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Friday, October 8th, 2021 AT 4:01 PM