SES Light Flash

Digitul · 02-09-2015, 12:14 AM

Hey guys,
Ive had the SES light on for some time now (3 weeks). Today I changed the spark plugs and the light turned off. However, after driving the car to a friends house the light began to flash then it turns off. A few street lights later, it starts flashing again then shortly after, turns off. I understand that this is an indication of a misfire being detected. Any ideas on what could be causing these misfires? Could it be an ignition coil issue? Ive attempted a search on this topic but have come up empty. Let me know if you guys have any advice on how to fix this.
Thanks!

maizenblue · 02-09-2015, 07:13 AM

Did you use a dedicated spark plug socket to install the plugs? They are extremely easy to break with a regular socket. Take it to autozone to have the code read and hopefully it will tell you which specific cylinder is misfiring and then replace the plug on that cylinder

maizenblue · 02-09-2015, 08:51 AM

Also did you gap the tips properly?

SouthArk370Z · 02-09-2015, 09:48 AM

If it's the SES light, you should be able to reset it from the multi-display. It's just telling you that it's time to change the oil or other periodic maintenance.

Digitul · 02-09-2015, 02:05 PM

Quote:

Originally Posted by maizenblue

Did you use a dedicated spark plug socket to install the plugs? They are extremely easy to break with a regular socket. Take it to autozone to have the code read and hopefully it will tell you which specific cylinder is misfiring and then replace the plug on that cylinder

I didnt use a dedicated spark plug socket to install the plugs. However, I did use a thin walled 14 deep socket to install them. Now that i think of it, the socket left one of the terminals on the plugs a little dirty with old grease and dirt. It could be that the terminal isnt making full contact with the ignition coil. Hmmm....I ordered an OBD II code reader, Once it comes in Ill take the car for a spin with it plugged in and see what kind of codes its picking up. For now, itll stay parked since its not my daily.

Thanks for the help guys

Digitul · 02-09-2015, 02:06 PM

Quote:

Originally Posted by maizenblue

Also did you gap the tips properly?

The tips were already pre-gapped at .44

Digitul · 02-09-2015, 02:08 PM

Quote:

Originally Posted by SouthArk370Z

If it's the SES light, you should be able to reset it from the multi-display. It's just telling you that it's time to change the oil or other periodic maintenance.

I dont think we are talking about the same thing here. The Service Engine Soon (SES) light comes up on your rev odo...the other maintenance stuff like oil and oil filter comes up in the multidisplay.

SouthArk370Z · 02-09-2015, 02:49 PM

Quote:

Originally Posted by Digitul

I dont think we are talking about the same thing here. The Service Engine Soon (SES) light comes up on your rev odo...the other maintenance stuff like oil and oil filter comes up in the multidisplay.

Ah. While it says "Service Engine Soon", Nissan refers to it as the MIL (Malfunction Indicator Light). Sorry about the confusion. Use an OBD/CAN scanner to read the DTC(s) present.

Digitul · 02-10-2015, 03:29 PM

Just wanted to give you guys an update.
The light hasnt come on since that night. So, good news haha! Thanks everyone

02-09-2015, 12:14 AM	#1 (permalink)
Digitul Base Member Join Date: Jan 2015 Location: Santa Fe, NM Posts: 16 Drives: 09 Nissan 370z Rep Power: 11	SES Light Flash Hey guys, Ive had the SES light on for some time now (3 weeks). Today I changed the spark plugs and the light turned off. However, after driving the car to a friends house the light began to flash then it turns off. A few street lights later, it starts flashing again then shortly after, turns off. I understand that this is an indication of a misfire being detected. Any ideas on what could be causing these misfires? Could it be an ignition coil issue? Ive attempted a search on this topic but have come up empty. Let me know if you guys have any advice on how to fix this. Thanks! __________________ 09 370z - Invidia Gemini CBE - Invidia Test Pipes - Stillen G3 Intakes - Uprev - 310 rwhp

02-09-2015, 09:48 AM	#4 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	If it's the SES light, you should be able to reset it from the multi-display. It's just telling you that it's time to change the oil or other periodic maintenance. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

02-10-2015, 03:29 PM	#9 (permalink)
Digitul Base Member Join Date: Jan 2015 Location: Santa Fe, NM Posts: 16 Drives: 09 Nissan 370z Rep Power: 11	Just wanted to give you guys an update. The light hasnt come on since that night. So, good news haha! Thanks everyone __________________ 09 370z - Invidia Gemini CBE - Invidia Test Pipes - Stillen G3 Intakes - Uprev - 310 rwhp

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02-09-2015, 07:13 AM	#2 (permalink)
maizenblue Enthusiast Member Join Date: Sep 2013 Location: Denver Posts: 288 Drives: 2010 370Z Rep Power: 12	Did you use a dedicated spark plug socket to install the plugs? They are extremely easy to break with a regular socket. Take it to autozone to have the code read and hopefully it will tell you which specific cylinder is misfiring and then replace the plug on that cylinder

02-09-2015, 08:51 AM	#3 (permalink)
maizenblue Enthusiast Member Join Date: Sep 2013 Location: Denver Posts: 288 Drives: 2010 370Z Rep Power: 12	Also did you gap the tips properly?