campintruck

My check engine light came on Monday after a camp out this past weekend. I took it to Autozone after work and the scanner read P1135. I couldn't believe what I was hearing, but the guy told me that I need to change my oil! I know this means that my Air/Fuel sensor needs to be replaced after searching this forum. My question is: Can I wait til Monday to replace the part and will my catalytic converter get clogged up? I really can't order the part til Friday from Toyotapartsexpress. Thanks for the info!

97ltd4x4

I doubt driving the vehical for a few days will hurt the cat...Don't worry about it,just get the sensor in the vehical as soon as you can.

BigBallsMcFalls

you will have 1000 miles of crappy gas mileage before problems will start to add up

go ahead and replace o2 sensor too, if u haz money....it will fail soon enough

campintruck

Thanks for the advice. I want be able to do the o2 sensor yet, thanks to my boses for not paying me for my days off during christmas break. Ill be lucky if I can buy my a/f sensor next week.

97ltd4x4

Don't worry about the sub2(it only works hard once the cat works hard/dosen't work)...just get the sub1 in there(A/f)...All will be fine.

BigBallsMcFalls

well, when the a/f isn't working the crap can build up on the o2 and (yes crap goes through the cat, doesn't get burned) shortens the life...that's alll I meant

plus the denso quality control is pretty good. when the element on the a/f goes (from old age, molecular loss) the o2 is also about ready to die. just sayin...if you can afford the pair may as well do them

but yes, rear may last another 40,000 miles who knows ? usually they go about 2 months between 1st death and 2nd death

TheDurk

I'm cheap and sensors aren't. New A/F sensor cured the P1135 I got at 70k and I stopped there. I figured the O2 lives in a lower temp post-cat environment and might have a few more miles in it. I'm at 110k now 3 years later and I'm not going to change it until it throws a code at me; it has no effect on how the truck runs. What's your sample size on that two months?

marktwo

Bad effects? Crappy gas mileage.

Be careful pulling that sensor out ... I've priced many a manifold/exhaust pipe for impatient technicians who've ripped the threads out. PB Blaster the hell out of it a few times the day before you go to replace it, or a "hot wrench" can work wonders.

BigBallsMcFalls

I had to chisel and peel the nuts off. them things just melt over 10 years and turn into rounded nuts 2 sizes too small...