Yes sounds like the same car. Was going fine, then I upgraded the injectors and had Robin do a tune and have been having the issues ever sense. Would you advise up grading to the nvram chip? Sorry what was your name? Where are you working now?

Hi, at cruise the A/F ratio is as lean as 18:1, the engine starts to miss and I can feel the car start to jerk, give it a bit of throttle and the ratio gets richer and the engine improves. It also bogs down off the line and the ratio goes off the scale lean at 20:1. A/F ratio at full throttle is 11....

Hi guys I have an 1990 VN SS which is running a STA supercharger, intercooler, 42lb injectors etc, and I have been having trouble with the tune. I dont know a lot about the ECU side of things. I have always just taken it to a workshop to have the ECU tuned to suit any mods I have done. I have fitted...