And would not having one make my car idle badly? (Just asking.)
TIA.
hrmmmm.. well one should be on the headers and one should be where the downpipe from your headers are. well thats for a 96-00 because its odb2. but since urs is 94 its obd1 meaning theres only 1 o2 sensor.. its the one on the downpipe.. and yes it will make your car seem like crap because the primary o2 sensor is what tells ur ecu to properly mix the air and fuel ratio etc... the second o2 sensor is usually for the catalytic converter which will give u a CEL if that cat needs to be changed but this doesnt affect ur performance. only the primary o2 sensor do.. hope this helps
Soak it in some kind of liquid penetrent oil (pb blaster, liquid wrench, etc). Let it soak in for awhile, come back and resoak it again. Try that a couple two or three times about 30 minutes or so apart and then try to break it loose.