240sx code 45 "injector leak"

[NISTECH]

go with the NGK plats for your car. check pinnicle they have a plug break down on their site. there should be a banner on here to link their site.

The o2 only generates up to one volt and it fluctuates very rapidly, your fix may be providing to much resistance and the o2 may not be responding as fast as it should.

[NISTECH]

here ya go had hard time finding it.

http://www.nissanparts.org/spark1.htm

[2_Liter_Turbo]

Ok I got some NGK's "5464" or BKR5EIX-11. They are the Iridium IX's. So hopefully those will help somewhat.

Also, I think I ruined my cat with this whole fuel injection fiasco. I was thinking of just boring it out because I cannot afford a new one right now. It is the original one with almost 140k miles and 12 years of age on it.

Would there be any negative effects by doing this ??? I don't have to worry about smog where I live, but I'll eventually get a new one; I am not a fan of cars spewing crap everywhere.

What are your takes on boring it out??? Thanks.

[NISTECH]

do the plugs for sure, the cat wont effect drivability unless it is plugged solid. This will not cause what your experiancing. I dont recommend modifying the cat at all.

[2_Liter_Turbo]

OK, did the plugs. Car runs alot smoother. Just a tad of fluctuation still, So I am going to address the O2 sensor when I have the money. Thanks again for all your help.