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Zero the Ignition Timing - VERY IMPORTANT TO DO !
The purpose of "zeroing" the ignition timing is to make sure that the ignition timing values you read on the Haltech are the same as what the actual ignition timing value is on the crankshaft. To make sure they both match up you need zero them. This should be done especially if you have downloaded one of my MAPS from this webpage. The MAPS are supplied with the fuel and ignition graphs done but you will still need to set up the ignition settings to suit your hardware.

To "zero" the ignition timing there are a few steps involved, although it is a rather easy process and a timing light is required. if you do not have a timing light then go out right now and purchase one. It is a tool that every modified car owner should have. With the timing light connected to Lead 1 spark plug lead, start the engine and also have the Haltech system online on your laptop. Now go to the Ignition Setup page and you will see the Timing Lock feature. This feature is not normally visable unless you have the Haltech system online. The Timing Lock should be set to ON. A new setting underneath will come up with a value at which to lock the ignition timing. For most engines there is a TDC mark (O degrees) so this value can be set to zero. Whatever there are marks for measuring timing you can set this value into the Timing Lock and check the timing lines up. For the 13B Turbo engine we have here there are two marks on the crank as pictured previously. One is Yellow and signifies 5 ATDC (-5 degrees) and the other mark is Orange and is at 20 ATDC (-20 degrees). The timing lock must be set to -5 and with the timing light check that the Yellow marker lines up with the pointer. If it does not then the Trigger Angle value will need to be altered. If you need to retard the timing to make it line up you should increase the Trigger Angle value. If you need to Advance the timing to make it line up then decrease the Trigger Angle value. The same adjustments can be made for any engine type. Once the mark lines up you can now go and turn the Timing Lock to OFF.

For a rotary engine you should also connect the timing light to the Trail-1 and Trail-2 spark plug wires. With the timing light connected to Trail-1 check to see if the timing notches on the crank pulley are roughly near the pointer. If they are not and are out 180° (i.e. the Trail-2 marks are near the pointer) then you have either the Trail leads back to front or you have the crank angle sensor 90° out of phase.

NOTE FOR SERIES 6 ENGINES - the timing check process for these engines is a little different. Some models of E6S and E6K are not adjustable for the timing lock, and some that are cannot be locked to -20 degrees to line up the single notch these motors have at 20ATDC. To do this check we can cheat a little. Start the engine and lock the timing at 10 degrees, this is the default timing lock number for all Haltech systems. Now with a timing light connected to Lead 1 spark plug lead, check where the mark on the disc lines up. By adjusting the Trigger Angle value make the notch line up with the pointer, remembering that increasing the value retards the ignition and increasing it advances the ignition timing. The engine will die down a bit at this retarded ignition which is normal for now. Once the notch lines up turn the Timing Lock to OFF. Look at your Trigger Angle value and now subtract 30 and enter the new number. For example if the timing lined up at 95 degrees, then a new value of 65 degrees should be entered. Now you are done with zeroing the timing. If you are confused you can email HITman and we will try to answer your questions.
The other easy way is to lock the timing at -5 and check the timing with the light on T1. This should be firing at -20BTDC (20ATDC) and should line up with the notch directly.

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