why is my injector keeps failing??!?!

[Bbandit]

Today.. I worked on my car for 6 hours straight..
I put mr gasket's copper exhaust manifold gasket in...
and I installed the 5 bolt turbine flange gasket..
replaced my #2 injector because it wasnt spraying...

So I took the car for a drive around the block...
it drove fine.. I parked and turned it off...
a while later.. I turned it back on and it turned out that #1 injector is not spraying anymore...
I have an extra 370cc laying around though..
but This bothers me so much...
I cant keep this up.. I have to do something but I dont know what to do anymore..
tommorrow i will probably change #1 injector and see how it runs..
hopefully the injectors will last without failing anymore..
Any input to address this problem?
Thanks..

Yuda

[240Stilo]

Bad fuel filter perhaps?

[Bbandit]

yea probably.. i just thought about that too...
I noticed that It's bogging at idle only.. under load, all injectors are spraying, prolly because of the higher pressure... Im hoping its because of a bad fuel filter..
Im going to try to put in some injector cleaner and new fuel filter..

[240Stilo]

Are you still using a 240sx fuel filter?

[fastpace]

nope he is not, he already upgraded to a 300zx fuel filter awhile ago.

[sr240mike]

I had the same problem with my 300zxtt. If you look on twinturbo.net many others will tell you the same. When one injector fails the others are not far behind. Injector cleaner is a good killer of old injectors too. Mine died 3 days after using it. A week late I had another one go.

[Bbandit]

I had the same problem with my 300zxtt. If you look on twinturbo.net many others will tell you the same. When one injector fails the others are not far behind. Injector cleaner is a good killer of old injectors too. Mine died 3 days after using it. A week late I had another one go.

hmmm.. well shieet.. i guess im gonna need a whole set of new injectors...

anyways.. I fixed it today.. I replaced #1 injector with a better one... replaced the fuel filter, put some injector cleaner in the fuel tank, replaced O2 sensor...
It ran fine until now..(Thank god), but I have to be ready if they fail again..