A
autotech
Guest
working on a 93 northstar starts and runs fine till warms up and goes into closed loop then stalls. if restarted once warm runs for 10 seconds then stalls. sets map sensor code sometimes (map already swapped with known good) probably just setting due to stall. no vac leaks, fuel pressure good, pcm good, spark still present during stall, injector pulse also, and won't stay running even if on the gas. any help appreciated.