My mazda b3000 has check engine light on and is running sluggishly. autozone's reader returned cyl 1 misfire. what do you think?

Was the spark plug oil fouled or fuel fouled?

https://www.700r4transmissionhq.com/p0301-Dodge-Dart/

The sluggish take off is most likely due to a misfire. Pull the spark plug wire on cyl#3 and hold it over an engine ground. It should spark constantly with engin cranking/running. If spark is present..... most likely a bad spark plug. However, there are many more things that can attribute to a misfire but this is the most common

you need to repair no 1 cyl. misfire it will misfire when engine load is present. if you want to test it .push brake pedal engine running and shift into forward gear and with the other foot raise rpm to 2000rpm you will feel the misfire
hope it helps

check for dirty fuel filter.

It's very possible that you have either a vacuum leak on the intake runner to that cylinder, or a faulty or plugged injector.

A flashing cel indicates misfiring. A common problem is a bad ignition coil. The easiest route for diagnosis is the check the trouble codes(autozone and some other parts stores will scan for free, or an OBDII code reader is not too expensive to buy). The code should tell you which cylinder is misfiring(PO301 means cyl #1, 302 cyl #2, etc). Once you know which it is, swap the ignition coils around. If you have a #1 misfire, swap coils 1 and 4, clear the codes, then check it again. If the misfire moves, you know you've got a bad coil. If the misfire is air or fuel related, as with an intake leak, other codes should come up as well as the misfire.

2000 toyota highlander just had oil changed and VSC lightis on.
what to do

take to autozone and have them check the engine light code to start it's free

Sounds like it may be running a bit lean - do basic checks for air leaks in the induction system (such as leaking manifold gasket, loose hose fittings to air flow sensor etc).
Condition of HT leads also worth a check.

It sounds like you have a misfire. Anytime a misfire is detected by the powertrain control module (PCM) it flashes the check engine light (CEL) on and off. Do not drive it this way because it won't take long to damage the catalytic converter. Have the diagnostic trouble code (DTC) read with a scan tool or "code reader" to see what DTC or DTCs are set. If it's a 4 cylinder, it will have a P0301 set for a cylinder # 1 misfire, a P0302 for a cyl # 2 misfire & so on. If the misfire is random (ocurring in multiple cylinders intermittently) it will have a P0300 set. Once you know which cylinder is misfiring you can check that cyl to see what the cause might be. It could be an ignition coil or spark plug failure. The # 1 cyl is always the one closest to the front of the eng or this car, the one closest to the passenger side fender.