vtecwho

about 6 months ago i figured out that i had all my cobra stuff too. same damn situation and parts!!! (i had 24s tho) thats weird.

SOFmech

Hopefully my 24# injectors will be here by this weekend. To me the car runs OK. This is my first Mustang so I cant really say if this ishow it runs or not. Definatly not as fast as I would like it( isnt it always that way). Hope to see some kind of change for the better with the new injectors. I kinda wanted to wait untill I got a new intake so I only have to do it once. Can damage occur from driving it with the 19# injectors in? I dont know how long they have been in there like that.

AdderMk2

im suprised the engine hasnt blown yet driving it like that

SOFmech

I wonder if the computer has been flashed for the use of 19# injectors? I dont know of anyone around here to be able to take a look at it to say for sure.

AdderMk2

pull the ECM out and see if there is a chip stuck in the J3 service port on the end

SOFmech

If by J3 port you mean the top of the computer. I found the following. The black metal mounting platehas a part # of 689151, 89-92 Mustang 302 HO Port Inj. Man. 5. SN: 501003

I pulled the chip out and it is a Hypertech chip PN: 689151
Hypertech (c) 1996
SN: 501003

Is this aftermarket or something Ford used back in the day? This is why I hate buying cars that have already been messed with. Smat people, what do you think?

AdderMk2

pics please....

and thats probably why your car runs with 19# injectors

SOFmech

Part# 689151



Year
Make
Model
Engine

1992
FORD
MUSTANG GT
5L V8 - FI VIN: E

1992
FORD
MUSTANG LX
5L V8 - FI VIN: E

1991
FORD
MUSTANG GT
5L V8 - FI VIN: E

1991
FORD
MUSTANG LX
5L V8 - FI VIN: E

1990
FORD
MUSTANG GT
5L V8 - FI VIN: E

1990
FORD
MUSTANG LX
5L V8 - FI VIN: E

1989
FORD
MUSTANG GT
5L V8 - FI VIN: E

1989
FORD
MUSTANG LX
5L V8 - FI VIN: E

Got that from the hypertech website.







Do you think I willbe able to run 24# injectors with this?

AdderMk2

leave it unplugged when you put the 24#ers in

SOFmech

So just leave it out and put some tape over the hole? Sounds easy enough. Is there any chip for the cobra computer. Guess I can doa search on it. Thanks Adder.