Where is the o/d sensor on 98 Accent? - Hyundai Motor 1998 Accent

790 pages of service info which may provide some help on 98 Accent 1.5 below
https://automotrizenvideo.com/wp-content/uploads/2011/11/manual-de-despiece-hyundai-accent-98-1.5-SOHC.pdf
If you are looking for all equipment which has a connector to the ecu or ecm a wiring diagram would provide info as to where the ecm get info from and where it sends it to.

https://www.cargurus.com/Cars/Discussion-c2203_ds502664
Some general info in link below. Basics of video crank sensor keeps blowing fuse to ecm.
https://www.youtube.com/watch?v=ubkHu4gPbbc

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Hyundai Crankshaft Position Sensor Removal - YouTube

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Hyundai accent 2001 - YouTube

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2000 Hyundai Accent GS turns over - no start. ... HyundaiCrankshaft Position Sensor Replace Timing Belt ...

Hello. The sensor for one of your airbags has most likely gone bad. The only safe fix is to replace it. Joe

puede ser el senor de la trasmision pulse generator sensor chekalo y limia el TPS throttle position sensor junto con el housing..

Hi, as long as the engine's the same (single or twin cam), as far as I know they're identical, should fit straight in. Hope this helps :)

When it dies..check for spark. You could have a component in the ignition system failing when the car gets warm.

If you don't have spark then you might need a new ignition module. The distributor cap and rotor should be checked for traces of carbon. This would be evidence of a leaking cap.

If you get check engine codes then you do have some sensors going out of range or failing all together. P0446 is an evap code right?
Make sure your fuel cap isnt plugged up and all your evap lines are ok.

If you dont have access to compressed air and a blow gun , to blow down the jets, then use a needle and try to clear the jets, and then try the wshers, you will have to adjust the jets after. If you still have nothing, or it is very weak, then remove the pipe and blow down it , also with the pipe off, try the washer pump to see if it is pumping strongly, because, although the pump is working/making a noise, it may be too weak, in which case you will need to replace the pump.
Hope this helps

Coolant Temperature Sensor

i would tend to think it was electrical possibly the coil they overheat sometimes and will kill the firing feel the coil and the resistor under the coil to see if they are more than just warm if they are that could be the problem

I'm not familiar with this model, but have you checked that the fuel tank breather is clear?