ok my chipped p28 was throwing a code 13...which usually means i have to buy a new ecu. this was on my a6/z6 mini me. i was in limp mode but even in limp mode i had a super torquey low end power at least to 3500 rpms where i was limited.
i bought a p75 with vtec added and zif socketed. i threw in the chip i had in the p28 in to the converted p75. the car over all feels weaker. it isnt as torque anymore. the overalll power band feels weaker. and of course the age old SOHC vtec not feeling it engaging.....
so would this p75 work exactly the same as a p28. p75=vtec added, zif socketed, xs engineering chip.

 

no one?