[usedcartech]

Its a 2002 corolla with 130k owner states had oil changes done on regular interval [3-5k] but has not done 30/60/90/120k service. what should the cross counts be on the rear o2 as compared to front o2? Any common place fore a vacuum leak? or a exhaust leak?

Does Tsb 02804 date july 19 2004 have any application on this model?

Thanks Ron C. near Pleasant Plane Oh