I suppose I agree with the notion that it's easier/simpler to use the VB921 as a replacement for the external ignition module, but I'm taking a wait and see position on it. In any event, I've bitten the bullet and installed the VB921 high current driver circuit and will try it - although I understand that the ECU is exposed to less internal electrical noise if the OE ignition module is used instead.

I went ahead and installed the PWM flyback damping circuit, although the manual says it isn't needed for my choice of high impedence injectors. At least it shouldn't hurt anything and I might as well use the extra parts for something. It does give me the option of later changing to low impedence injectors if desired.

I'm now at the point of installing the standard flyback circuit.... and taking a break to relieve eye strain. <img src="/forums/images/graemlins/shiner.gif" alt="" />

Thanks for the opinions and comments. <img src="/forums/images/graemlins/kewl.gif" alt="" />

Frank