Cadillac Repair: 1994 Cadillac Northstar engine stuttering and stalling., cadillac northstar, serial data link

Question
QUESTION: I have a 1994 Cadillac deville Concourse, It has the 4.6 northstar engine. It started out by slightly stuttering while driving at slow speeds, high speeds it ran well as well as during acceleration. Recently it started to start up and die frequently, I changed the MAP sensor plugs, wires, which helped, then it started again. Everything I read leans to an air intake leak. Can you give me any clues to what you think it may be. Thanks Greg
ANSWER: Check your computers for diagnostic codes via the climate control panel.

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QUESTION: this is what I got.
p032 history
p053 history
p071 history
p095 history
no IPC
no APC
r022 current
t072 history
s026 history
s038 current
s055 history
s060 current
s061 history
s070 current
s072 current
so73 history

That is what pops up and in that order, Any further help you can give, I can use and will appreciate.
Thanks Greg
ANSWER: CLEAR all the codes from the computer and see which ones return.

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QUESTION: Can you tell me how to clear the codes?
ANSWER: The lengthy procedure is posted in various locations in my previous answers to other questions. Scan thru the previous answers.

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QUESTION: I cleared the codes and this is what is left.
Ro22 current
To72 history
So38 current
So60 current
So70 current
So72 current
That is all of the codes that come up right now.
Can you tell me what this means? Thanks for your help.
Greg
ANSWER: tell me how you cleared the codes?


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QUESTION: I cleared them how you explained in past questions. By using the heat and off button then going to pcm and doing all that till it said codes clear. Do you want more detail then that?

Answer
R022 = Drivers initiator circuit low.

T072 = Serial data link fault.

S038 = Electronic Level Control exhaust valve short to
      ground/open circuit.

S060 = Left Front Position sensor fault.

S070 = Left front accelerator fault.

S072 = Left Rear accelerator fault.


In order to fix all these problems you are going to need pictures and directives. E-mail me at: onlineautohelp@msn.com and include ALL of the past information and my answers as well as the year and model car.