You should put the second bung at the same relitave spot as the sensors in the cast manifold. The computer reads the mixture in two pair of cylinders. The also have to be in the corect order. I think white plug is no 1.....Larry
i going through the same problem except im using a b18c w/ obdo injectors and dist. and a skunk2 intake manifold . the b18c only has i sensor before the cat.
here it goes loud and clear for ya... taken directly from a b16a1 crx manual... using an obd0 pr3 ecu... notice where the two oxygen sensors are placed? in the same fucking spot! getting readings from the same place.
Is there hi flow cats with holes already in there. i know there is a stock cat from a 95 gsr for sale and it has a o2 sensor on it. whats the performance diff between a stock and a hi flow?
OBD1 1 o2 sensor . . . in the manifold, before the cat
OBD2 2 o2 sensors . . . 1 in the manifold and the 2nd in or after the cat
OBD2 ecus can read the difference between pre cat and after cat exhaust oxygen levels . . . if you have no cat or even some high flow cats will or can through a code . . P0420 catylist deterioration
Originally posted by legutki@Apr 9 2003, 08:41 AM I found out that pr3 can be reprogrammed to read only one o2 sensor. for more info email greg at vtec4gs@aol.com
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