[Diy_efi] High fuel pressure

[rr]

Very possible that the injectors are not opening. The injectors
as provided on the GM TPI systems won't open past 70-80psi or so.

BobR.


944Technologist wrote:
> 
> On a 4 cylinder BMW with an early Motronic system, it has a failure in the
> fuel regulator. The pressure rises to the maximum that the fuel pump puts
> out. The injectors are 2.2 ohm. It is near impossible to start the engine
> when cold.
> 
> Why? Is it too rich to burn when cold? Is the high pressure holding the fuel
> injector closed? Other?
> 
> Thanks,   FR Wilk
> 
> _______________________________________________

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