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1991 740 Wont Start Spits and Sputters 700 1991

I have a 91 740 that will not hold an idle.
There is good fuel pressure and also spark and ignition pulse.
The car computer is saying the following codes

3-2-1 Cold Start Injector missing pulse
2-2-1 Lambda Sensor , may have rich mix

The car will try to start and may start but will spit and sputter and when you give it gas it idles down and stalls.

Any help would be get
Thanks
Steve






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