I have a 91 maxima se. I just replaced the #2 cylinder fuel injector. Put it all back together and now it runs like ****. It won't idle and runs rough unless I give it a lot of gas. I double checked the fireing sequence and looked all over for a vacumn hose that I might forgot to hook back up. Any suggestions?
Thanks Brian

 

vacuum leak somewhere, did you replace the manifold gasket? get some starter fluid and spray it around any seam that you took appart to see if t's leaking. if the car runs better when you spray the seam them there is a vaccum leak there(the starter fluid is getting in) hope that helps

 

any flamable aerosol or gas will work.
we prefer propane at the shop, but I've seen carb cleaner used as well, just use those stupid little straw thingies to have a more pinpoint location

 

You can also use WD-40.

 

replaced lower intake manifold gasket and fixed the problem. Thanks for all the replies. Brian