Requesting feedback with attempts to enhance engine efficiency by addressing the system componets descibed within the Fuel Injection Field Guide documents if possible.  Attempting to address engine efficiency due to a number of `out of the ordinary aspects' as follows;

• High level of hydrocarbon exhaust emission, i.e. eye burning and notable high concentrated exhaust fumes.

• High engine rpm at start up (up to 3,000 rpm and cycling up and down for a period of time) prior to leveling off around 1,800 rpm.  Note, rebuilt Fast Idle Valve with new O-rings.

• Fuel Pressure holds at 38 psi (be advised as to refurbished fuel tank and sending unit, new high pressure fuel pump, rebuilt fuel injectors and replaced the fuel regulator with a confirmed tested regulator (Sutton Motors).  New spark plugs and fuel filters (tank and @ engine bay) and engine timing confirmed to specifications.  Likewise the MAP had been rebuilt by FIC).

• Engine power appears to be lacking as well.

After reviewing all the CVOA literature, the ECM may be a source of re-calibration? Appreciate any thoughts, as well as any other suggestions that come to mind?

Many Thanks,

Jim McIntosh

CV 1057