H22 SL33P3R

So I hear the a1 injectors are 330cc but require the resistor box. The a4 is 290cc w/o the box. Since I have the a4 but am running obd1 with P28 ecu, should I convert to the 330cc injectors. Is the ecu wanting more fuel? Anyone tried both injectors with different results??

holmesnmanny

Use whichever injectors are for the ecu so use the a1 and add the resistor box in.