Software sync on engine

Today during testing on the 1ZZ-FE the software was able to synchronise with the crankshaft and attain CRANK SYNC. This is a good milestone that shows the software can work in real applications. Next step is to make a two channel zero crossing detection circuit that can covert the crank and cam VR signals into digital for the PIC32. Thanks to Dennis for lending me his zero crossing circuit.

Software modified to suit 1zz-fe

While the go kart engine is being modified. I have been setting up the software to suit one of the 1zz-fe engines downstairs. These have two inductive pick ups; one 36 minus 2 teeth on the crankshaft and a 4 minus 1 tooth on the camshaft. From my research I have found that the first tooth after the crank missing teeth gap is 36 degrees before cylinder 3 and 2 TDC. The camshaft first tooth after the teeth gap is around 36 degrees before cylinder 4 TDC when the VVTI is in neutral position.