I have been trying to find a good 4runner around Reno to buy, and all are in CA. What has been modified/restricted due to CA's emissions laws?

Thanks
Tim

 

Nothing on the newer trucks. On the older 22RE trucks there was the 22REC engine which had a litle more emissions crap than the standard 22RE. Now they build them all the same which means they build them all to California specs.

 

Dude, EVERYONE in California has Yota's.

I bought mine in Phoenix....super cheap and no rust or corrosion!

Yeah, I dont htink there is anything different between the trucks now adays.

 

01+ trucks are the same
before that Ca had dual cats
and the others had single

I think .. not sure on this though. Thats what I was told when I was getting TRD headers

 

So the 2000 4runner I'm contemplating buying will have two cats? Can I jsut take it to a shop here and have them cut one out and replace with a straight pipe.

 

in 99, the CA-spec 4Runner came with dual cats and the rest had just one cat. In 2000, they all came with dual cats...there is some confusion regarding the sensor before the first cat. Some have an AFR sensor and others have another O2 sensor.

If you get a dual cat, save yourself some hassle and just leave it in. You'll be polluting less and will take a minimal (what, maybe 3hp? at the most) power loss.

 

Except that AFR sensors and O2 sensors are the same exact thing. That is the purpose of the O2 sensor, to measure air/fuel mixture and send a signal back to the ECU so that it may correct the mixture as needed. The purpose of an O2 sensor after the cat is to measure cat operation. This signal isn't used by the ECU so much for mixture control as a possible trouble code source.

 

Well, the same in purpose, but not mechanically/electrically equivalent. The 'AFR' sensor is much more sensitive, and also much more expensive that the std o2 sensor. I replaced mine with a used one from a yard, no problem.

 

functionally, they aren't the same either - O2 sensors send a voltage that varies between 0-1V, and which can be tapped into and read by any narrow band A/F meter. the AFR's in the new trucks send a steady 3.3V and can't be read by aftermarket gauges. the O2 sensor trucks can also be manipulated by signal conditioners like splitsecond's ESC1.

creed

 

It was 2001 that all the trucks converted to dual cats and the front AFR Sensor. I have a 2000 Federal Emission vehicle with only 1 catalytic converter and the standard front O2 Sensor.

Starting in 99, the trucks bound for CA had the dual catalytic converters and the front AFR sensor.

My .02
G

 

I also have a 2000 Fed Emission vehicle w/ only 1 cat converter. This begs the question of does a 4Runner w/ a single cat. converter have more hp than dual cat. converter?

 

not in any official toyota data it doesnt.

 

I remember reading window stickers on brand new 1996 models and it said California Emissions and Im in New York, it was even in the brochures.

Now it is just standard and accepted, the air here is just as dirty as California the smog makes my eyes water

 

The air is fine here in Santa Cruz. Not everywhere is smoggy like L.A.

 

The air is fine here to but apparently when they tested the air all the counties outside the city and the 5 boroughs failed

 

Can someone tell me if my new to me 2001 Toyota 4RUNNER which I bought in Massachusetts would be CA emissions compliant. May move out there in the next year so I would like to know. Is there a way to find out if a particular vehicle was originally CA emission compliant?

Matt

 

Anyone have a pic of a CA dual cat system? I just bought a 2000 4Runner (in CA) and it has only one cat. It may have been brought-in from another state though...

Ken

 

Doesn't matter. If it is still stock with the Fed equipment in working order you are fine. And that info should be on your emissions sticker.

 

Funny you should mension that. My dad ( california resident) Just bought himself a 4unner from pheonix after hearing all the wonderfull things I said about mine. His wasn't a California vehicle like mine, but I think the o2 sensor was the only difference we found between the two. Nothing major.

 

I was going to post about this matter... Funny how the thread suddenly reappeared right as I was thinking this...

I hope it's true that fed emissioned vehicles would not need to be modified to meet CA emission standards before being registered in CA....

I bought mine from a dealer here and the vin shows it as fed emissioned.

I just ordered a non CA precat O2 sensor and hope it wasn't retrofitted with the new AFR crap.... The non CA sensor was only $90 while the CA one is $270... :X