Quote:
Originally Posted by tmoss
If the diaphragm in the fuel pressure regulator fails, it won't control fuel pressure correctly and the leaking fuel gets sucked into the upper intake by the vaccum line = WAY too rich.
Look ast my sig, 277rwhp on 19# injectors and I have nothing more than an adjustable fuel pressure regulator and the base timing as tuning tools. A "large comp cam" and definately the 24# injectors are playing havoc with the computer VE tables. Do you have the 19# injectors you could put back in? If a MAP check, computer change and trying the 19#ers result in no change, I'd definately go to MAF and forget fooling around with a chip for the SD system - it will be cheaper and work better.
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I had the 19#injectors in for the past several months and was told to try the 24's in hopes to helps, but it didn't change a thing. I will check the MAP today and see what is going on there.
thanks for the help.