1988 Chevy Silverado V8 Two Wheel Drive Automatic
code 42 on scanner, replaced ign module, spark control module, then on the advice of expert replaced ecm. No help. With the est bypass disconnected it starts and runs great, reconnect the bypass connector revs up great. Shut the engine down restart and runs like c**p. Can the prom or calpak chip cause this or is the problem elsewhere?
this is a calif smog motor w/tbi
have the same problem?
Thursday, January 21st, 2010 AT 9:27 PM