I have a 2000 4runner SR5 3.4L 159000. Recently check engine light came on with a low efficiency on cat1 bank1. I have Cali. emissions therefore I have two cats inline, which is bank1 and bank2. Also could there be something else causing this, A/F sensor maybe. I had to replace the muffler once and in doing so I had taken apart the entire exhaust and replaced gaskets. Than the check engine light went away by itself but now its back. The only thing I can think of is that I uplugged the O2 sensor to take everything apart. Please help toyota quoted $1000 a piece for each cat.
catalytic converter, need help!!
- Thread starter skorpion
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Ron Helmuth
Senior Member
not sure of the question
If you are saying the cats need replaced then get high flow cats on your own. Like Summit Racing sells them.
Are you in Cali or just the truck is from there-check your local laws of course-this may not be legal there.
Of course a muffler shop should be able to handle this. SHould be a bit cheaper than a Yota dealer -maybe not much.
edit- doh I see you are in NY
If you are saying the cats need replaced then get high flow cats on your own. Like Summit Racing sells them.
Are you in Cali or just the truck is from there-check your local laws of course-this may not be legal there.
Of course a muffler shop should be able to handle this. SHould be a bit cheaper than a Yota dealer -maybe not much.
edit- doh I see you are in NY
Ron Helmuth
Senior Member
call a local muffler seller-shop and compare
try the local shops and see how pricey they are running there.
How about Auto Parts Warehouse?
google
catalytic converter 2000 4runner
I bet you get something good there....
cmon you technophobes help a brotha out....
try the local shops and see how pricey they are running there.
How about Auto Parts Warehouse?
catalytic converter 2000 4runner
I bet you get something good there....
cmon you technophobes help a brotha out....
AF808fighter
New member
Join the military so you can register your car in any state then say F*** cali emissions and ram a crow bar through your cats. 
ok prob not very helpful
ok prob not very helpfulAF808fighter
New member
magnaflow cats on ebay for around $65...
Thanks I will consider the military option. But for now I live in NY so cali or fed it doesnt matter as long as the truck will pass NYSI.
The magnaflows, are they universal or direct fit?
Also new development...The check engine light went off again by itself. Im confused anyone experience this before.
The magnaflows, are they universal or direct fit?
Also new development...The check engine light went off again by itself. Im confused anyone experience this before.
AF808fighter
New member
With check engine lights there are so many factors, O2 sensors etc. The best thing to do is have a shop run a diagnostic and get a read out. Its like $60. As for the cats I think they are universal so you'll have to pay a shop about an hour's labor to weld it in.
