How do I fix my timing issue...

[missin' 2]

I'm running the tt sd2 chip right now and there is a perameter in the chip to put the ecm into diagnostic mode (locks timing at 15°.

I set the timing light to 15° and the line on the balancer is lined up with the 4° mark in the timing cover.

How do I get this to zero out?

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[earlbrown]

First I would set up a dial on #1 and verify that TDC actually reads 0.

 

[missin' 2]

Ok. I will do that tomorrow.

If it does???

If it doesn't??

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[TurboBob]

set the timing light to 0 (turn off the dial-back) and check the timing that way.

Dialback lights can have issues with wastespark.

Bob

 

[missin' 2]

Ok so put it in diagnostic mode and look for the timing Mark to be at 15° on the timing cover.

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[TurboBob]

yes, or just check the idle timing matches the power logger displayed timing.

Bob

 

[missin' 2]

I'm guessing it's right. I can't see the 28° mark on the timing cover so I set the timing light to 62° and the balancer was right on the 0° timing cover mark. Is that right?

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[TurboBob]

I never use the dial-back lights, perhaps Eric will jump in here.

can you see the 15 degree mark? diag mode would put your timing there.

Bob

 

[Eric Stage I]

In your case, you could go into the spark table and set the cells around idle to 15* so you can see it better. If you're 4* advanced, set the timing ref. adjustment in the SD2 to -4 .

Diagnostic mode forces 15*, but once in diag mode it bypasses that ref adjust, so you won't see the timing correction in diag mode.

 

[missin' 2]

In your case, you could go into the spark table and set the cells around idle to 15* so you can see it better. If you're 4* advanced, set the timing ref. adjustment in the SD2 to -4 .

Diagnostic mode forces 15*, but once in diag mode it bypasses that ref adjust, so you won't see the timing correction in diag mode.

When I put it in diagnostic mode I see 15° on the timing cover with no setback

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