Ebl flash 2 timing question
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: Ebl flash 2 timing question
Process of elimination. First, hook up a timing light and your laptop where they can both be used/seen. With a running engine the WUD displayed SA has to match the at-crank timing as seen by the light. If not then there are other issues. Can even make up a BIN with the SA at 20° BTDC across the whole table. Makes it easy to check the at-crank timing.
As for which tables/scalars can reduce the timing. Spark knock is straight forward.
The CTS/IAT table as supplied is neutral, so if it still matches the CTS/IAT bias, then no change there.
The idle compensation tables will change the SA at idle to help stabilize it.
In highway mode SA is usually added, not removed. Same for PE mode SA.
The SA - TCC Locked Reduction table can reduce the SA as the TCC gets/is locked. Helps prevent knocking due to the higher load. Can zero the table if desired and the engine is OK with it.
That leaves the CTS vs VAC table, this guy has the most to do with modifying the SA. It can both add and subtract.
RBob.
As for which tables/scalars can reduce the timing. Spark knock is straight forward.
The CTS/IAT table as supplied is neutral, so if it still matches the CTS/IAT bias, then no change there.
The idle compensation tables will change the SA at idle to help stabilize it.
In highway mode SA is usually added, not removed. Same for PE mode SA.
The SA - TCC Locked Reduction table can reduce the SA as the TCC gets/is locked. Helps prevent knocking due to the higher load. Can zero the table if desired and the engine is OK with it.
That leaves the CTS vs VAC table, this guy has the most to do with modifying the SA. It can both add and subtract.
RBob.
Thread Starter
Junior Member
Joined: Mar 2019
Posts: 19
Likes: 0
Car: 92 c 1500
Engine: 5.7
Transmission: 700r4
Re: Ebl flash 2 timing question
Process of elimination. First, hook up a timing light and your laptop where they can both be used/seen. With a running engine the WUD displayed SA has to match the at-crank timing as seen by the light. If not then there are other issues. Can even make up a BIN with the SA at 20° BTDC across the whole table. Makes it easy to check the at-crank timing.
As for which tables/scalars can reduce the timing. Spark knock is straight forward.
The CTS/IAT table as supplied is neutral, so if it still matches the CTS/IAT bias, then no change there.
The idle compensation tables will change the SA at idle to help stabilize it.
In highway mode SA is usually added, not removed. Same for PE mode SA.
The SA - TCC Locked Reduction table can reduce the SA as the TCC gets/is locked. Helps prevent knocking due to the higher load. Can zero the table if desired and the engine is OK with it.
That leaves the CTS vs VAC table, this guy has the most to do with modifying the SA. It can both add and subtract.
RBob.
As for which tables/scalars can reduce the timing. Spark knock is straight forward.
The CTS/IAT table as supplied is neutral, so if it still matches the CTS/IAT bias, then no change there.
The idle compensation tables will change the SA at idle to help stabilize it.
In highway mode SA is usually added, not removed. Same for PE mode SA.
The SA - TCC Locked Reduction table can reduce the SA as the TCC gets/is locked. Helps prevent knocking due to the higher load. Can zero the table if desired and the engine is OK with it.
That leaves the CTS vs VAC table, this guy has the most to do with modifying the SA. It can both add and subtract.
RBob.
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