Catalytic Converter (Cali VS. FED) Options

[barterj]

I need a new front Catalytic converter for my car. Its a 2.2L and is cali. emissions. Is there any difference in the front catalytic converter for a cali emissions cat. and a FED emissions cat.?

[HoldenFast]

I need to get a few facts straight regarding cat converters on a 1995 Celica:

From this thread: http://www.6gc.net/forums/index.php?showto...35476&st=20

"most US Celicas have 2 cats (primary and secondary)- 94-95 STs have 2, 96-97 STs have one - the secondary, 94-99 GTs (94-95 cali) have 2, the 94-95 fed (non-cali) have just one, the primary."

Based on this, a '95 GT non-cali emissions vehicle has one cat, the front one coming right off the manifold in the engine bay.

From above:

"if by front, you me the cat attached to the manifold, then no, the cali spec cat has an opening for an O2 sensor that the federal model dont have (pre '96) but, the actual cat itself is the same, you can just plug the hole."

And:

"I assumed a needed the cali spec cat. because of the oxygen sensor right after the first cat. Won't the car run a bad fuel+air ratio if the sensor is not plugged in?"

This suggests if a pre '96 car has two O2 sensors (before/after the cat), it is cali-emissions.

My 1995 car was sold new in Ohio, uses the non cali-emissions style distributor & ignition, and has only one cat (the primary up front), however it has two O2 sensors, one before and one after the cat. Any ideas on what's going on?

Also, 1995 was pre OBDII. I'm told it will not throw a code/light for a bad cat (I believe it is currently clogged, but no SES light). Why the second O2 sensor then?

Thanks in advance for any help!

[slavie]

I need to get a few facts straight regarding cat converters on a 1995 Celica:

From this thread: http://www.6gc.net/forums/index.php?showto...35476&st=20

"most US Celicas have 2 cats (primary and secondary)- 94-95 STs have 2, 96-97 STs have one - the secondary, 94-99 GTs (94-95 cali) have 2, the 94-95 fed (non-cali) have just one, the primary."

Based on this, a '95 GT non-cali emissions vehicle has one cat, the front one coming right off the manifold in the engine bay.

From above:

"if by front, you me the cat attached to the manifold, then no, the cali spec cat has an opening for an O2 sensor that the federal model dont have (pre '96) but, the actual cat itself is the same, you can just plug the hole."

And:

"I assumed a needed the cali spec cat. because of the oxygen sensor right after the first cat. Won't the car run a bad fuel+air ratio if the sensor is not plugged in?"

This suggests if a pre '96 car has two O2 sensors (before/after the cat), it is cali-emissions.

My 1995 car was sold new in Ohio, uses the non cali-emissions style distributor & ignition, and has only one cat (the primary up front), however it has two O2 sensors, one before and one after the cat. Any ideas on what's going on?

Also, 1995 was pre OBDII. I'm told it will not throw a code/light for a bad cat (I believe it is currently clogged, but no SES light). Why the second O2 sensor then?

Thanks in advance for any help!

Couple of points. I'm talking about GT here.
1. Easiest to determine Cali vs Fed would be to look at the injectors: if the car has light green injector tops and there is a hose going from the throttle body to a port on the head b/w inj 2 and 3, then you have Cali car. If you have dark green injector tops (the part where connector plugs in) and NO hose going to the head b/w inj 2 and 3, then it's Fed emissions.
2. I've heard that some late 95 cars were build to 96 specs in preparation for going OBD2 - check your build date (on the driver's side B-pillar behind the door), and see if you have OBD2 port. 96-99 cars all had same distributor with single 2-pin connector going to it for the cam position sensor, fed or cali regardless.
3. If your car still has the original hood, check the emissions sticker - should say either "fed and canada" or "california" emissions.
4. Just because the car was sold in Ohio does not mean it's fed emissions. My 99 was a PA car with Cali emissions. Also, I called Toyota corporate to verify and they were useless. The lady on the phone assumed I had federal car based on the state it was sold in, but it was indeed a cali car. Go figure.

Hope this helps.