The Miss

[Mihnea Cotet]

At 12:30 25/03/2002 -0500, Mark Woodland wrote:
>After tracing a miss-at idle (#4) to a bad injector (or so I thought) I 
>replaced all 5. (#4 did not spray at all at idle, while 1,2,3 and 5 did. 
>It started to piss out one side.. nasty pattern, with about 1" of metering 
>plate lift, and bwcame a full (but rough) pattern from midrange to WOT)
>After replacing the injectors, the idle speed to 15/1800 rpms miss is 
>still there.
>Compression is close to 100 PSI on all 5 cylinders, and spark is present.
>I haven't pulled #4 back out, but it leads me to believe that the problem 
>is probably in the metering/distribution head of the FI unit.
>The miss on #4 started after 3 back-to-back treatments with Techron.
>Am I doomed to replacing the whole metering/distribution head, the whole 
>"box" or am I overlooking something?
>Hoping for the best/fearing the worst,
>Mark Woodland

Hmmmmm....compression too low maybe? 100 psi seems VERY low, even for a 
turbo engine IMHO...

Mihnea