1989 Olds Cutlas 2.8 ltr. doesn't want to idle when starting it after running an errand.
Help Please! My 1989 Olds Cutlas 2.8 ltr. doesn't want to idle when starting it after
running an errand. A month ago it would die suddenly so the mechanic did a scan and
got prom id 2271 and a code 51. There weren't any other codes. I replaced the ecm
and prom chip, the IAC, TPS, TSS (speedo would suddenly drop to zero and the car
ran odd then) TCC solenoid is newer. The fuel pump and filter are fresh. I run premium
gas from Chevron. Plugs, wires, ignition control module has a couple thousand miles.
I am at my wits end. Thank you for the help!