my set up is a I/H/E b18c5 engine with a chipped p28 ecu tuned by a local tuner.
i wanted to check the advance timming so i grabbed my timming light pistol and i saw that the marks on the pulley can not align at all.
i also used a second timming light with the same result.

trying to find out whats going on so i changed the chipped p28 ecu with the stock ITRs ecu to test.
warmed up the car and the timming was as it supposed to be at 16 degrees.

any ideas why the strange timming with the p28 ecu? is that normal with chipped ecu's ??