QuestionQUESTION: I have a 91 sedan deville with a 4.9. The car was running like new until I presure washed the engine.Now it surges at idle but is fine on the road. I did a code check and this is what came up, E23,E52,70. Could you please tell me what they mean? Thx.
ANSWER: E23 = Electronic Spark Timing (EST) signal problem.
E52 = Battery was disconnected.
70 is NOT a code. It is just a designation that you are at the end of the codes sequence.
Are you seeing these codes ONLY after you see a single E displays or are you also seeing these codes after a EE displays ?
---------- FOLLOW-UP ----------
QUESTION: The display reads,
EE23,E52
ANSWER: You probably got water in one of the distributor electrical connectors or in the distributor.
Bring the codes back up and when you see .7.0
Simultaneously push and hold the OFF and HI (^) buttons on the climate control panel until you see E.0.0 and release the buttons.
Turn ignition OFF for 15 seconds.
Recheck for codes and see if EE23 reappears.
---------- FOLLOW-UP ----------
QUESTION: Checked it again and the EE23 is still there. I steamed it last week so it should definitely should be dry.
Any suggestions?
AnswerYou did do the CODE CLEARING per my instructions and saw the E.0.0, YES ?.
Then your checked the codes again and the EE23 came back. YES ?.
If you are mechanicaly inclined or know of someone who is, You will need simple electrical schematics, Test procedures and picture locations of the components within the system that is causing you problems of which can't be done on this website which only allows one picture. I do not have a website so you will have to e-mail: onlineautohelp@msn.com in order to obtain the information.
