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Discussion Starter · #1 ·
What should the WDBG value be for a 36-2-2-2 Trigger wheel?

Thanks,
 

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Discussion Starter · #3 ·
Yes Subaru with VR sensor, thank you.
Im getting 35 for Wdbg, so that seems correct.

This would indicate proper synch between the cranks degree
of rotation and the ECU, correct?

In progression of items to verify, the phase table would be next for
configuring the engine to inject and ignite at the proper times?

I'd like post my current and proposed phase setup today, with some feedback if possible.

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Discussion Starter · #4 ·
360/4 = 90degrees per Phase

I have seen others start their Cyl 1 at 360 degrees, however each post by The Arch. and Nate
seem to indicate: start firing at 0 degrees. Is there a reason to this?

One other theory question:
Given a 4 cyl engine. I have seen Phase Setups that roll from 0-->360 for Phase 1-4.
But then run from 30-->390 for Phases 5-8. Any reason for this? Is it necesasry or can I run it as follows:

Wasted Spark. Subaru Fire Order 1-3-2-4

360 fires coil 2, inject 1
450 fires coil 1
540 fires coil 2, inject 3
630 fires coil 1
0 fires coil 1, inject 2
90 fires coil 2
180 fires coil 1, inject 4
270 fires coil 2

New Proposed Phase Setup


Old Current Phase Setup:
 

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Discussion Starter · #5 ·
The proposed phase setup did not work at all. Sometimes logic does not prevail.
 

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4 cyl engines fire every 180 degrees...
With firing order of 1324:
1 and 2 would fire at 0 and 360 degrees
3 and 4 would fire at 180 and 540 degrees

Trigger your injectors at 90, 270, 450 and 630.
 

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TheArchitect said:
4 cyl engines fire every 180 degrees...
With firing order of 1324:
1 and 2 would fire at 0 and 360 degrees
3 and 4 would fire at 180 and 540 degrees

Trigger your injectors at 90, 270, 450 and 630.
You initial thoughs were pretty close, with the exception of your base premise of 360/4... :-(

As the Architect points out, the normal 4 stroke motor needs 2 crank turns to complete on 'cycle', so if you had started with 720 (2 crank turns)/4=180, you probably would have started ok!
 
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