Ok my car was dieing at any rpm and idling. Shop told me the injectors needed to be replaced. Yesterday I replaced the fuel injectors, now it won't die at idle or cruising. But it runs rich and if i rev it up and let it come down it chokes and dies. This morning I took off the cap and cleaned the posts and drove for about 15 minutes without getting the SES or it dieing when stopping/ lettin the rpms come down, what gives? So I let it idle in the driveway for about 10 min and no light either. But I went out and started reving it and the problem came back and i got the SES. What the hek can be wrong? How do I fix the code 45, low voltage to the EST? Could this possibly be that the gas is kinda old (3/4 months) making it an intermittent problem?

Oh yeah it's a 92 RS 3.1L, code 43 is oxygen sensor rich, 45 is low voltage to EST. I have replaced, cap, rotor, plugs, wires, injectors, oxygen sensor, PCV. I have jumped the diagnostic connector while running and it flashes fast (closed loop right?) so thats working right. I cannot figure out what else to do, unless the dist is the whole problem.

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1992 RS 3.1
1985 POS (SC 2.8 CFI)

 

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UPDATE:
Well I ran the car today for 15 minutes no light, then another 15 later in the day light on the whole time. Then I filled up the car with 4 more gallons of gas and dumped in a bottle of heet. Viola! no more dieing at all. Then I drove 32 miles, no light the whole way. Then I started it up to drive back light on until half-way there i stop and restart the car, no light the rest of the way home. What the hek? I got roughly 18-20 mpg maybe more, thats not good so it's still running a little rich but only tripping the SES light sometimes? ugh this sucks.

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1992 RS 3.1
1985 POS (SC 2.8 CFI)