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.

 

[yzf1999]

Everything is plugged back in…hoping it will turn off soon.

 

[Old School]

Get one of these Autel MS309 $20 code readers so you can read and clear codes. Work great.

Amazon.com

 

[yzf1999]

I went to Advance Auto and got a scan tool…it was the air box temp sensor. I cleared it and all is good now. Note to self..Don’t start the car with the air box out.

 

[Old School]

I went to Advance Auto and got a scan tool…it was the air box temp sensor. I cleared it and all is good now. Note to self..Don’t start the car with the air box out.

I handle this same situation 2 different ways, either just clear the code or I also have a spare air temp spacer to plug in the harness to run without the air box.

 

[Dan Cragin]

Just like Dan indicated. You unplugged the air temp sensor when the airbox was removed. It made the light come on. After a few starts
it will go off.