Service engine soon light on

[yzf1999]

Hi guys..I got a question for ya. I just replaced my power steering pump and high pressure line. I sprayed some carb cleaner down on the rack area to clean up the oil mess. Then I filled up the power steering reservoir…I left the air box off and fired up the car to see if I had leaks. That’s when the service engine soon light didn’t shut off. I turned the car off and restarted it and it stayed on. All was good with the pump so I put the air box back on and started the car again. Service engine soon light was still on. Is it on because I started it with the air box out?..will it go out in time? Everything is plugged in. It’s a 1997 GTS with 16K miles. Thanks for responses.

 

[Viper Specialty]

Intake air temp sensor unplugged, its in the airbox.