Let's play "Name that sensor"

[XJourney]

Well so I switched the number 3 injector with the number 1 injector. And the problem followed

Now I get
P0201 Injector malfunction cylinder 1
P0301 Miss fire cylinder 1

Sound like the injector to me

So some of the symptoms of a bad injector can be
1 miss through driving range on hot starts only
2 not being able to rev above 2800 rpms

So tomorrow I will replace my injector(s)
So can I replace 1 or should I replace all of them?
What brand is a good one? (price is a concideration)

Thank you

 

[MACH90XJ]

Good job,that's some damn good trouble shooting you guys did.Fiveomotorsports.com has injectors at the best price I have seen so far,and as far as quality I havent had a problem with the mustang injectors I put on my '90.You can e-mail or call the guy there and he will answer any questions you might have,very helpful people.

 

[MJR]

Before I would pay for a replacement injector I would see if the emissions warranty (if still in, depends on selling state) is good and covers it. Since it's a problem like you have and no leaks then you can replace just the one.

 

[XJourney]

I am not sure if I am going to mess with warrenty. They will have to do their own tests/diagnoistics(time that I don't want to waste). And I am going camping this weekend
The rest of my injectors looked great(well i guess the faulty one looked great too )
I will be a cheap bastard and replace just one injector for now and then look into ford injectors, 23pounders right. And maybe buy the insulator too.

Thanks to everyone that helped.
You all can come over for beer and cookies if your in the neighborhood.

 

[MACH90XJ]

I dont think you want 23lb,its more like 19 lb.Its not the poundage upgrade in mustang injectors its the spray pattern.Something like 30 degrees versus 60 degree,1 hole versus 4 hole.

Ordered injectors on internet,2 days later there on my doorstep with o-rings already on.Not sure if they sell singles.

 

[MJR]

I dont think you want 23lb,its more like 19 lb.Its not the poundage upgrade in mustang injectors its the spray pattern.Something like 30 degrees versus 60 degree,1 hole versus 4 hole.

Ordered injectors on internet,2 days later there on my doorstep with o-rings already on.Not sure if they sell singles.

19.7lb are for the Renix 4.0L's. The poundage has changed three times on the 4.0L mostly due to fuel pressure increases. The newer style injectors have different connectors.