I have the same promblem like yours on my '92 RS Camaro, 2 years ago I replaced my old engine(260'000) whit a new one, new TBI unit, replaced all the sensors, fuel pump, IAC, EGR, distributor and spark plug wires too.
The first 3 months it runs like a missile, now it stall at idle speed.
Perhaps it is an ECM or Eprom problem, the ECM wires I have tested are ok, anyway the problem persist.
Still reaching the problem.
Thursday, March 22nd, 2012 AT 6:50 AM