What's the #

[Kernel]

just looking for what the fuel injector pressure should be at when heep is on. thinking it should be in the teens. need to win a bet.

 

[Eagle]

What year, what engine?

 

[Matthew Currie]

If you mean the pressure at the fuel rail, I just looked it up for another post, and for a 4.0, it should be 31 psi at idle with the regulator vacuum line connected, and about 39 with it disconnected. This appears to be the figure for both the 87-90 Renix system and the 91-up Chrysler system, although they use different injectors.

 

[boogie94xj]

The injectors are rated at about 19lbs if that helps any.