MEFI Scan 1 If you decide later that

If you decide later that you want the ability to do tuning as well

This system has been tested with part numbers:

it will tell you how many milliseconds (mS) the injector is firing on the LCD readout

asp" target=""><STRONG>GM OBD1 home page</STRONG></A> for references and diagrams of the connectors styles

ECM555 0701

MEFI Scan 1 If you decide later thatThis is a trimmed down version of our MEFI Scan & TuneTM system for the user that just wants to do scanning monitoring, data logging, and malfunction trouble code viewing. If you decide later that you want the ability to do tuning as well, you can upgrade to our MEFI Scan and TuneTM packages for just the difference in price between the MEFI Scan and the other package. You have nothing to lose by trying MEFI Scan first. The MEFI Scan kit includes: A 6