NOT KNOWN DETAILS ABOUT 4AGE 20V BLACKTOP

Formerly the torque curve just curved from a very low level steadily upwards. The improve afterwards was a huge and flat torque curve. From 3000 to 5500 revs the torque ‘curve’ was a useless flat line. Despite having the VVT solenoid briefly unplugged it even now has far more power over The complete rev assortment compared to the preceding ECU.