I have a 1994 Toyota pickup with a 2.4 engine with California emissions. I need a exhaust from cat back any suggestions? Also what's the difference with Cali emissions and fed. emission exhausts?
I too have a '94 RE-C truck. The California model had a different downpipe (same basic shape but the flange is different at the cat), the cat is different in shape, length, and flanges. The catback has a different flange at the cat, as well as a flange for the rear feedback O2 sensor right after the cat. If you are replacing the catback for rust reasons or lack of noisiness reasons, your best bet is to have it cut right after the post-cat support and replaced from there back.
I called the dealer and gave my vin number. It is a cali truck, But the cat back has no 2nd (bank 2) O2 sensor. Did this guy that I bought it from convert it to a fed emissions? If so what should I look for?
Follow the wiring harness to the current O2 and see where it ends. On the California trucks the wiring for both sensors shared the same harness, so if it's under there you should be able to find it easily. The rear sensor is a tattletale only, so it would not have been difficult for the previous owner to bypass it with a dead sensor or a resistor in the heater circuit. Also, it is worth taking a look at the engine to confirm it is still the RE-C. The quickest way to tell at a glance is to look at the rear of the intake manifold where the EGR elbow connects. The California trucks had a temp sensor in that elbow.
I followed the 02 sensor and there is a plug with nothing attached to it. Here are some pics of the engine, if this helps. If there is no bank 2 (02 sensor) wouldn't the check engine light come on?
CEL will come on and throw a code for lack of heater circuit resistance if there is nothing plugged in. Does the CEL function properly when you jump the underhood connector? That is certainly an REC, the added VSV on the valve cover and the EGR temp sensor are dead giveaways.
