New to forums could use some help with my speed 3

[jamesjohnson227]

Hi I have a 2008 Mazda speed 3 and I got my car detailed and they washed my engine bay but I was at work when they washed it and didn't know they did the engine any ways the car threw a code for a cylinder #2 misfire.
Then began to sputter and misfire if I barely put ant pressure on the gas peddle it would go through the RPMS but if I pushed it any harder it would Pop and Sputter and so I changed my spark plugs and it then it threw a code for a random misfire. So then I changed the coil packs
I ordered the 2.3 liter ones and it sent me 2.5 liter ones I checked them and they looked exactly the same and even had same numbers on them so I put them in and then the car began to run better it only sputter at higher Rpms and then 2 day later it died on the freeway and wouldn't start.
I am stumped at this and need elp. Thanks

[Agent_Orange]

What plugs did you use?

Did you gap them properly?

They need to be between 0.026-0.028"

[jamesjohnson227]

I believe I used same plugs as stock and I did not gap them.
But could that make the car shut off?

[Agent_Orange]

Originally Posted by jamesjohnson227 I believe I used same plugs as stock and I did not gap them. But could that make the car shut off?

It could.

If the plugs aren't gapped properly, the fuel in the cylinders will not undergo complete combustion and wet fouling will occur quite quickly.

Just to be clear, the engine will crank, just not start correct?

[license2ill]

fuel pump?

[jamesjohnson227]

I just changed a battery and alternator on the car and it is throwing a code U2064 it isn't putting a CEL up but still reads when AP is plugged in and it
Runs and drives sputters at high Rpms and then shuts off.
The car has full bolt ons and Cobb fuel pump.
I am seriously very over the car at the moment

[DarkProto0D]

JamesJohnson227

You should either go back to those original coil packs or go all out and get some, such as the AEM Coil Packs (you would need 4 of those) and Ignition control module. The thing about the ones you purchased is that the modules are built to the top of the pack and spark timing is designed for the ECM for the 2.3 or 2.5 as well as many other minute differences.

The root cause of your problem was that they sprayed water into your spark plug pods which probably leaked past the plug rings and into the cylinders. Hopefully there isn't a leak in the valve cover gasket (which is not uncommon) and a significant amount of water didn't get into the oil. I would change the oil to be safe. That is what I think is the most likely cause of the problem. One other issue may be that the water damaged the VICS or Air Idle Control Valve (about $300).