Oldsmobile/Buick Repair: Olds. Toronado stalling out, haynes manuel, olds toronado

Question
I have a 87 Olds Toronado that stall or chugs while driving and while idling.  I have a Haynes manuel and did a system check.  Two codes came up...B132 current and E042.  The E042 said it was the EST.  What is that?

Thank you

Bow

Answer
HI BOW.  THE EST. IS ACTUALLY THE ADVANCE SYSTEM FOR DISTR TIMEING.YOU NORMALLY GET THIS CODE IF YOU HAVE A MALFUNCTION IN THE IGNITION MODULE..OR ANY PROB IN THE ELECTRONIC SYSTEMS TIMEING CIRCUIT.HOWEVER THE MODULE IS THE MOST COMMON.PLEASE TAKE A SEC TO RATE MY SERVICE TY BILLYMAC