Ik am getting when I do the code check on my 92 cadillac deville 888 then the E52, then F31 then a 7.0. What does all this mean?

Question edited for clarity, spelling of the maker, toss in some CAPS and make sentences.
Question moved to model category.

Both are Transmission errors

E-39 Error

https://caddyinfo.ipbhost.com/topic/10886-92-deville-error-code-e39/

and E-98

Diagnostic Code -- E98 Need Help

Cadillac Owners Forum https://www.cadillacforums.com > threads > diagnostic...
Nov 9, 2005 - E98 - High RPM P/N to D/R in ISC Range check your tranny. its sometimes called a VCC overstress error. dont change gears until car is totally ...

Great, now I have MORE trouble codes!! E91 and E98
Aug 7, 2006
Error codes E22, E32 E52 E98 - Cadillac Owners Forum
May 5, 2004
More results from www.cadillacforums.com

It is a known issue

92 Deville climate control not coming on ' Cadillac Owners ...

www.cadillacforums.com > threads > 92-deville-climate...

Jan. 10, 2013 - Hello, I have a 92 cadillac deville 4.9L In general it runs fine but recently we ran into a problem. The problem is the climate control panel ... 1992 Deville Heater/Climate Control Issues ' Cadillac Owners ...
Oct. 5, 2009
92 Deville fuel center and climate control not working ...
Dec. 1, 2008
'92 Deville Climate Control Problems ' Cadillac Owners Forum
Nov. 11, 2015
1992 Deville BCM ' Cadillac Owners Forum
Aug. 20, 2016
More results from www.cadillacforums.com

https://www.google.com/search?safe=off&rlz=1C1QJDB_enCA643CA644&sxsrf=ALeKk01MvGZqAOzZoiWToV30Z4QvuL7-6w%3A1615830077317&ei=PZxPYOPhEuay5NoPgPW_WA&q=92+cadillac+deville%2C+climate+control+D

..

E26 and E27 which is "Shorted throttle switch signal" and "Open throttle switch signal".
The code E52 just means that the ECM lost power or ground or that someone forgot to clear the code after hooking the battery back up. It could mean a bad computor but not very often. 2 things that come to mind is a bad ignition key or lock cylinder or a faulty neutral safety switch. Try the other ignition key first. Then with your foot on the brake pedal hold the key in the start position and move the shifter slowly from P to D. If it tries to start then the NS Switch is bad or out of adjustment. If it still won't start then you will need to troubleshoot the ignition key/PASS KEY system for an open wire in the steering column. Hope that helps. Bill

check fuel pressure

E52=memory (history) has been lost.try ERASE all your codes and see if any come back.1.turn Ignition ON, Engine OFF.2. Push and hold the OFF and WARMER buttons until all the segments on the display illuminate and as soon as the codes start to appear, Push the OFF and HI buttons and release them until you see .7.0.
3. Turn ignition OFF.

Hello williamcole7: My name is Roger and I will help you. The code 888 is a test code. This tests the L e d's of the dash cluster. All segments must light so you can read all numbers. The 70 code means the system is ready and able to function. The ff code is a current BCM code and is happening at the moment. The f 40 code is a BCM history code and means it was a stored problem or something that has happened. The f 40 code is for a air mix door problem. THe BCM would set this if you had an A/C problem. The E 48 code deals with the EGR system fault. I would check for a vacuum leak at the EGR solenoid. The hose is prone to deterioration do to heat from the engine. Code E52 deal with loss of voltage. A dead battery or a disconnected battery cable will always set this code. None of these codes will keep the car from running.The repair schematics are to extensive to send in a reply. Should you need further help ao assistance I will be glad to help. Please rate the answer. Thank You for using Fix Ya. Roger

e52 is ecm memory reset
e91 park neutral safety switch
e98 transaxle shift fault

throttle position sensor replace it. also in rare cases the map sensor will be bad . go to a junk yard and get your replacements it wont cost near as mutch. compared to the retail stores

E52=memory(history)has been resetmeaning the power to the computer
was disconnected and the driving/engine systems performance history has
been lost.

If they are ONLY displaying as F codes this means that they are HISTORY codes and if they display as FF codes then they are CURRENT codes and what we need to diagnose is ONLY the CURRENT codes.

F11 = AC high side temp circuit problem.

hope this helps good luck

E26 - Shorted Throttle Switch Circuit
E27 - Open circuit in throttle switch
On these 2 codes replace the TPS and clear codes (throttle position sensor).
E52 PCM/ECM Memory Reset
Have u cleared the memory? don't worry about this code.