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Old 03-18-2003, 10:26 PM
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pmizell pmizell is offline
Benz Zealot
Join Date: Jun 2001
Location: Houston, Texas
Posts: 838
How much fuel pressure at injectors?

Hey Guys,

I'm trying to diagnose a no-start with my 300E. Today it quit on me while running errands; prior to this, engine ran and idled flawlessly. I've checked spark, OVP fuses, and fuel pumps (2 -- I think both are turning but can't tell for sure)

I busted open bolt at pressure regulator and got a nice spray, then re-primed and tried an injector... and nothing ... just a couple of drops of fuel came out. Tried a couple more with same results.

Is this normal? Should I get a "squirt" when I break open a fuel injector? I tried some engine starter in the intake, to no avail. Engine cranks fine ... just won't catch at all.

Any help is appreciated
'01 E430, Sport 72,000 mi
'98 C280, 126,500 mi
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