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Discussion Starter #1 (Edited)
Just need to verify if I changed out a p28 ecu to a p05 d15b8 cx ecu will my ignition timing need to be adjusted or changed again? The ignition timing has already been set on the d16z engine and I noticed when I put the stock ecu for the car back in (p05 d15b8) the ignition timing was way off? I distributor needed to be advanced almost all the way to be at 16btc? I am putting my stock ecu back into the car for smog reasons. Just need to verify if ignition timing should be affected by the change in ecu.
 
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