injector cleaning or swap?

[mark8796]

got code p0306 (cylinder 6 misfire detected). i already swapped plugs, wires, and coil packs (they needed to be changed anyway)...no change. i think next culprit is injectors. all info i've seen points to them (stumbling idle, stumbling under light acceleration, prior p0300 code, which i had) so, i was either gonna do:
install 30# injectors (already bought 2 years ago, just never installed them yet)
or:
take the car to shop for injector cleaning where they run a solvent thru the fuel lines to clear up the varnish that can collect on the inj (car sat for 3 months while i took my time on pi cam/intake, and x, y, z swaps), and if that doesn't fix, then clean the injs off the car in a tank and flow test them.

questions: if i install the 30#ers, which i would plan on doing anyway someday soon after i clear the miss, will the car run like as, if at all until i can get to the dyno tune dudes? this way i can skip the injector cleaning all together.
what do you think?

 

[vermilion]

id personally spray carb cleaner around gaskets on your intake plenums. sometimes ford's gaskets leak after a few months. i had that same code on another ford. pita if you ask me i was chasing a gripe for along time.

 

[ripper]

I think you will need a matching MAF.

 

[voidfinger]

The 4.6 cars don't require a new MAF when changeing injectors. Its in the tune for them though... if you don't get it tuned it will and i mean will run like ass. Very rich or whatever, just get it tuned. If you don't believe me ... the 96-98 gt's used 19's and the stock gt maf... and the cobra's used 24's with the stock gt maf lol. They are the same, so all you need is a tune for them

 

[MustangMatt96GT]

I plan on running 30 or 36 pounders on my motor for when i spray it.

 

[voidfinger]

I plan on running 30 or 36 pounders on my motor for when i spray it.

Dry kit?

 

[realitygt]

why not wait til right before u go to the tuning place and install the 30#?

 

[MustangMatt96GT]

NO ill be spraying a wet kit!

 

[voidfinger]

NO ill be spraying a wet kit!

Why so big of an injector then? a wet kit don't need huge injectors...

 

[MustangMatt96GT]

NO ill be spraying a wet kit!

Why so big of an injector then? a wet kit don't need huge injectors...

Im going to have at least 300 to the wheel N/A. So with a 75 shot here at this altitude I should have around 400 to the rear wheel. And I want to be safe rather than sorry.

 

[voidfinger]

o ok, got ya... so where do you live that you get 100 rwhp from a 75 shot?

 

[DropTopPony]

I see you have a blower in your sig, do you have a hand held tuner or do you have a chip? If you have a hand held then you just change that for the 30# ers but if you have a chip then someone would have to do it for you...thats the downside of a chip compared to a tuner and why i sold my 4 bank and bought and Xcal 2

 

[nesqwick_05]

i believe he is running the fmu...

and as far as not needing a maf when changing injectors, thats new news to me, but the question i have is do they need a tune when changing mafs and not changing injectors??

 

[DropTopPony]

No tune needed if swapping mafs on a 96 and newer( the electronics swap over)...before the 96's you had to trick the computer and change the tubes in the maf for different injectors but now its all in the computer.

 

[AaRoN]

The 4.6 cars don't require a new MAF when changeing injectors. Its in the tune for them though... if you don't get it tuned it will and i mean will run like ass. Very rich or whatever, just get it tuned. If you don't believe me ... the 96-98 gt's used 19's and the stock gt maf... and the cobra's used 24's with the stock gt maf lol. They are the same, so all you need is a tune for them

+1 Tune, tune, tune... ;D

 

[voidfinger]

The 4.6 cars don't require a new MAF when changeing injectors. Its in the tune for them though... if you don't get it tuned it will and i mean will run like ass. Very rich or whatever, just get it tuned. If you don't believe me ... the 96-98 gt's used 19's and the stock gt maf... and the cobra's used 24's with the stock gt maf lol. They are the same, so all you need is a tune for them

+1 Tune, tune, tune... ;D

At least some one else know's what they are talking about :drunk: j/k