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What's the #

Kernel

NAXJA Forum User
Location
San Jose, CA
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.
 
What year, what engine?
 
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.
 
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