High fuel pressure at idle
- Thread starter WillC
- Start date
Have you measured fuel pressure?
How are you running a cobra fuel rail on a 2v?
What injectors did you install?
How are you running a cobra fuel rail on a 2v?
What injectors did you install?
Well after my cobra motor blew I couldn’t find a cobra engine at a good price so I put a 2v in it with all the necessary parts. I didn’t switch it to a return less fuel system so I just put the cobra rail and kept the fuel system.
Not sure about the injector size but they are bigger than stock.
Also don’t have a gauge to measure the pressure
Edit: just checked and they are stock cobra injectors 24/Lb
Not the stock 2v 19/Lb ones
Not sure about the injector size but they are bigger than stock.
Also don’t have a gauge to measure the pressure
Edit: just checked and they are stock cobra injectors 24/Lb
Not the stock 2v 19/Lb ones
Last edited:
RAU03MACH
Legend
97 2v has return and feed on fuel lines
97 cobras have return and feed
Your using a 2v intake it should be ok
But installingmountimg wise you figure that out
And it may be to much fuel psi injectors
You could put a regulator in the feed
There may be some others with some ideas to help
This is just one
97 cobras have return and feed
Your using a 2v intake it should be ok
But installingmountimg wise you figure that out
And it may be to much fuel psi injectors
You could put a regulator in the feed
There may be some others with some ideas to help
This is just one
Can you take some pictures? The b head cobra rail shouldn’t be able to work on the 2v intake, but I could be wrong.
Has the car been tuned? Is it on the 2v computer or the cobra computer?
What is the mod history on this thing?
Has the car been tuned? Is it on the 2v computer or the cobra computer?
What is the mod history on this thing?
RAU03MACH
Legend
I believe there shorter to the mounting holes
Since you deleted the EGR and have a straight vacuum line to the regulator, your fuel pressure might be too high at idle. Try running a proper vacuum source from the manifold (not just straight intake) to the regulator. Also, check if your O2 sensors are working if they’re bad or unplugged, the ECU will default to rich. A tune would help if you’ve removed emissions stuff.
