DON ------> 2006 pro xs question

[Brodz]

Don I have a 2006 PRO XS , I just had the air compressor replaced ,plugs replaced , now the motor hicups at low idle , someone said one of 2 things , first a reed might be going bad 2nd the computer needs to be reprogamed , the motor run great just at the low idle is the problem
any thoughts ?
Thanks
Brian


Modified by Brodz at 4:36 PM 3/19/2012

[EuropeanAM]

Engine serial number?

What spark plugs (were they installed AFTER compresor), and what are they GAPPED at?

Have you REINSPECTED the plugs?

One other item to consider: A failed air compressor will often pack metallic debris into the fuel rails, AND the DIRECT INJECTORS.

http://www.europeanmarine.org/injectorservice.html

[Brodz]

Serial # lb299729
NGK plugs were put in
No I didnt reinspected the plugs
And the plugs were put in after the compresor
Should I get the fuel pressure readings and what should they be at ?
The air compressor didnt lock up , but made noise and had some metal shavings there , the fuel rails were flushed

[EuropeanAM]

Rather than giving you a specification... let's try this.

Obtain Air (Port side) and Fuel (Starboard side) Pressure readings:

-At idle speed
-At 1500 RPM's
-5 Seconds after engine shutdown
-10 Seconds after engine shutdown
-15 Seconds after engine shutdown

You will need a DUAL pressure gauge setup (so you can accurately monitor BOTH pressures at the same time).

Pay special attention to the DIFFERENCE between air and fuel pressures, as it's the real critical indicator in diagnosis.