CEL??? on and off? - Toyota Yaris Forums

aspro · 09-16-2014, 10:27 AM

I recently did an aem CAI and DC header. Everything was running beautifully until about a month after the install the car threw a bank 1 sensor 1 o2 sensor low voltage code. The funny thing is it comes on for about 30km of driving distance and then shuts off on its own and I can drive around for another week or two weeks with no CEL and then it pops up again and then goes away again. Also, my car only has 80,000km's on it. A little premature for an OEM o2 sensor, no?

Any thoughts or input would be helpful.

09-16-2014, 10:27 AM	#1
aspro Drives: 2011 Yaris RS 5 door 5 spd Join Date: Aug 2012 Location: Toronto, Canada Posts: 449	CEL??? on and off? I recently did an aem CAI and DC header. Everything was running beautifully until about a month after the install the car threw a bank 1 sensor 1 o2 sensor low voltage code. The funny thing is it comes on for about 30km of driving distance and then shuts off on its own and I can drive around for another week or two weeks with no CEL and then it pops up again and then goes away again. Also, my car only has 80,000km's on it. A little premature for an OEM o2 sensor, no? Any thoughts or input would be helpful. __________________ TRD sway bar, h&r coilovers, tanabe strut tower bar, konig feather, bfg sport comp 2, MI intake manifold, aem cai, dc header, trd catback, MI crank pulley, trd short shift kit, phillips hid kit, morimoto led fogs, parrot navi indash, alpine 6.5 speakers, alpine amp, alpine reverse camera, led interior lights, thule roof racks, netz badges...