FC 45

[Mike Pitts]

I wonder....

If the shift is stable, and the new higher flow rate doesn't change any
more...
perhaps a recalibration of the EPROM to account for the extra flow would
cure the over rich problem.

If nothing else, it would be a much easier fix, and opens up the possibility
of adding additional fuel if the VE was improved through better cam, heads,
headers or whatever.

-Mike

-----Original Message-----
From: John T. Martin <gmman at eskimo.com>
>93 S/T-10 vin W cpi has a somewhat cronic problem with code 45's system
>rich. usually  with slight rough Idle. It has been my experience this is a
>CPI problem . When this system was introduced we had  lots of unusual rich
>conditions. CPI's use one electrical injector followed by six poppet
>nozzles. The poppets are use for distribution, the single injector for
>metering. Under a lab condition this was investigated and found a portion
of
>the injector housing was shifting (we are talking .001"  's here) creating
a
>larger metering orifice.