WTF! SES light mysteriously vanished!

Red370 · 12-28-2009, 04:21 PM

So i've had an SES light on for the past thousand miles or so, throwing codes for an 02 issue, well I start my car up today and drove down the road a bit, went to turn off my traction control and noticed my new friend the Service Engine Soon light wasnt on... shocked the hell outta me, anyone else ever had this happen before? I havent reset the ECU, or done anything, i've never seen this happen unless someone cleared it with a code reader.. ideas?

kenchan · 12-28-2009, 05:41 PM

If the problem goes away SES does rest on its own.

GZ3 · 12-28-2009, 05:45 PM

could have been some bad gas and it just now reset..mine did the same thing

vipor · 12-28-2009, 05:54 PM

bad gas...

Josh@STILLEN · 12-28-2009, 07:46 PM

SES lights will turn off after a certain number of cycles, that's common. They stick for a bit even if the condition isn't present, but after a while it will go away. If the condition comes back, so will the light.

Red370 · 12-28-2009, 07:56 PM

excellent, thanks for the explanations.

12-28-2009, 04:21 PM	#1 (permalink)
Red370 A True Z Fanatic Join Date: Jul 2009 Location: Kaiserslautern, Germany Posts: 4,391 Drives: your mom to church Rep Power: 296	WTF! SES light mysteriously vanished! So i've had an SES light on for the past thousand miles or so, throwing codes for an 02 issue, well I start my car up today and drove down the road a bit, went to turn off my traction control and noticed my new friend the Service Engine Soon light wasnt on... shocked the hell outta me, anyone else ever had this happen before? I havent reset the ECU, or done anything, i've never seen this happen unless someone cleared it with a code reader.. ideas? __________________ 2011 Mustang 5.0 \| 3.55's \| Lethal Performance off road H-Pipe \| Magnaflow Muffler Delete \| JLT CAI/Bama tuned 417whp/ 404 ft/lbs

12-28-2009, 05:54 PM	#4 (permalink)
vipor A True Z Fanatic Join Date: Aug 2009 Location: Euless, TX [ DFW ] Age: 42 Posts: 13,531 Drives: Nismo 09-0183 QAB Rep Power: 49	bad gas... __________________ 2009 NISMO # 0193 \| QAB \| Albums! \| 05.04.10 (Dynojet) 291.94hp/248.28tq Oil Cooler (DIY) \| Custom Headlights \| GTSPEC Braces \| F.I. Long Tube Headers

12-28-2009, 07:56 PM	#6 (permalink)
Red370 A True Z Fanatic Join Date: Jul 2009 Location: Kaiserslautern, Germany Posts: 4,391 Drives: your mom to church Rep Power: 296	excellent, thanks for the explanations. __________________ 2011 Mustang 5.0 \| 3.55's \| Lethal Performance off road H-Pipe \| Magnaflow Muffler Delete \| JLT CAI/Bama tuned 417whp/ 404 ft/lbs

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12-28-2009, 05:41 PM	#2 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141521	If the problem goes away SES does rest on its own.

12-28-2009, 05:45 PM	#3 (permalink)
GZ3 A True Z Fanatic Join Date: Dec 2009 Location: SATX Posts: 3,296 Drives: Z Rep Power: 22	could have been some bad gas and it just now reset..mine did the same thing

12-28-2009, 07:46 PM	#5 (permalink)
Josh@STILLEN The370Z.com Sponsor Join Date: Dec 2008 Location: Costa Mesa, CA Posts: 1,197 Drives: 2004 G35 Coupe 6MT Rep Power: 534	SES lights will turn off after a certain number of cycles, that's common. They stick for a bit even if the condition isn't present, but after a while it will go away. If the condition comes back, so will the light.