Part # M236
A manual for all TPI GM systems from 1985 through 1995 (including LT-1). Contains detailed information on how GM ECM’s receive sensor information and thus control fuel injection and spark timing. Complete list of trouble codes, their discovery and diagnosis. Written primarily so you can troubleshoot engine with only a test light and a digital volt meter. A handy reference even though you may have a GM service manual for your particular engine.
