Thread: injector issues
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Old 05-09-2012, 10:29 AM   #13
Scooby Specialist
Member#: 118500
Join Date: Jun 2006
Chapter/Region: MWSOC
Location: Michigan
02 Silver Wagon
"Stage 2"


Originally Posted by REED FLEMMMMING View Post
Also for reference when I hooked up the timing light and the noid light while turning it over they flashed 1 to 1. So with the waste spark system I guess you could say the injectors fire twice for every four strokes.
I'm sure it's just a typo, but the spark plugs fire twice per 4 strokes (or once per crank rev).

So, replacing the MAF fixed your injector issue?

We made custom fuel rails for an old FSAE car back in college, and jury rigged the rail to fit. This ended up putting too much pressure on the injector causing it to stick open, filling the chamber with fuel. Adjusted the rail, and it was all good. I don't know anything about Subaru fuel rails and what fits what or if this even a possibility, but it IS possible to cause an injector to stick open if the fuel rail is clamped too hard on it.
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