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Mar 7, 2020 | 07:54 AM

#16

Fuzzpuss

Cargo Master

Joined: Nov 2015

Posts: 3,419

Likes: 932

From: Fort Worth, TX

Quote:

Originally Posted by TooManyToys.

Sean (you know this - just reacting to the statement), but the need of being able to do an uncompensated injector balance cannot be understated since injector contribution confounds so many.

I couldn't agree more. I feel like I wasted $400 on AutoEnginuity due to it's inability to perform uncompensated injector balance testing. I wish I had ponied-up for IDS to begin with.

Mar 7, 2020 | 08:42 AM

#17

F350 1990

Fleet Mechanic

Joined: Feb 2007

Posts: 1,652

Likes: 79

From: Mooresville, NC

Quote:

Originally Posted by Fuzzpuss

I couldn't agree more. I feel like I wasted $400 on AutoEnginuity due to it's inability to perform uncompensated injector balance testing. I wish I had ponied-up for IDS to begin with.

Indeed -- AutoEnginuity is a Piece of Chit !

Injector balance (or cylinder contribution) is a tricky formula to get right (Ford's implementation is very good, AutoEnginuity's is a joke) and largely calculated by observing various sensors (e.g. crankshaft position, solenoid "action via FICM, etc) then deriving / inferring certain cylinder performance information since you don't have an O-Scope or other tools (like we use on gas engines) to get direct measurements.

I disassembled the object code in IDS, looked at the implementation, but won't post it here as it would violate copyright, US proprietary laws..........bottom line: Ford did an outstanding job building IDS and it's a world class tool.