93 Saturn SL2 Does Not Start, MIL Light On

Are the any trouble codes being activated from this occurring?

And can you monitor the fuel rail pressure with it faulting? All you need is an obd reader to do this.

Could be a whole range of problems, but it is most likely a fuel pressure fault.

Do you service the vehicle yourself, the stored and self learned parameters for the high presure fuel pump need to be reset evey time after you change the fuel filter, or it will have incorrect values.



To clear the codes from your ECM do as follows;

Set Diagnostic Test Mode II (Self-diagnostic Results)

1. Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
2. Repeat the following procedure quickly five times within 5 seconds.
a. Fully depress the accelerator pedal.
b. Fully release the accelerator pedal.
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the MIl starts
blinking.
4. Fully release the accelerator pedal.
ECM has entered to Diagnostic Test Mode II (Self-diagnostic results).

To Erase Diagnostic Test Mode II (Self-diagnostic Results)

1. Set ECM in Diagnostic Test Mode II (Self-diagnostic results).
Mode II (Self-diagnostic Results)" .
2. Fully depress the accelerator pedal and keep it for more than 10 seconds.
The emission-related diagnostic information has been erased from the backup memory in the ECM.
3. Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.

Or in short
Ign on count to 3
full on and off throttle 5 times within 5 sec's
count to 7 hold throttle down for 10 or so seconds
wait for the ECM light to flash let go of throttle and your in count the codes after you have written them down or fell you don’t need any codes just hold the throttle down until you see the ECM pattern change to ten fast flashes twice and then ten slow flashes and there you have one reset ECM

Hope this gets you somewhere.

The e52 stands for or means that you are comunicating dirrectly with the Electronic Control Module (ECM) The 7.0 means that the system is ready for you to clear any stored codes in the (ECM). Which you should not do if there is any unless you have already made all repairs.Did you enter the diagnostic mode by mistake, Because they are not trouble codes they are entry points to allow you to be able to extract any trouble codes stored in your systems computer or (ECM). To exit the self diagnostic system at any time press the AUTO button and turn the ignition key off. This will prevent the system from throughing these numbers at you.Or you can continue on with your self diagnostics, and when finnished then exit program.Good Luck.

How to read the engine codes without a Nissan CONSULT or scan tool. (Set ECM in Diagnostic Test Mode II)

1. Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
   
2. Repeat the following procedure quickly five times within 5 seconds.
   
   1. Fully depress the accelerator pedal.
      
   2. Fully release the accelerator pedal.
      
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the MIL starts blinking.
   
4. Fully release the accelerator pedal.
   
5. ECM has entered to Diagnostic Test Mode II (Self-diagnostic results).
   

Try the self test and calibrate for the HVAC panel :

Electronic Automatic Temperature Control Module On-Demand Self-Test The EATC module on-demand self-test will retrieve on-demand (hard fault) DTCs only, it will not retrieve continuous DTCs. Continuous DTCs can be cleared when exiting the EATC module on-demand self-test. Make sure to retrieve continuous DTCs by carrying out the Electronic Automatic Temperature Control Module - Retrieve Continuous DTCs procedure before clearing any continuous DTCs.


•The EATC module on-demand self-test will not detect concerns associated with data link messages like engine coolant temperature or vehicle speed signals. A diagnostic tool must be used to retrieve these concerns.
•The EATC module on-demand self-test will detect concerns in the system control functions and will display on-demand (hard fault) DTCs for concerns that are present during the self-test. The vehicle interior temperature should be between 4°-38°C (40°-100°F) when performing the self-test. If the temperatures are not within the specified ranges, false DTCs may be displayed.
•The self-test can be initiated after cycling the ignition switch from OFF to ON. Normal operation of the climate control system stops when the self-test is activated.
•To enter the self-test, press the OFF and DEFROST buttons simultaneously and release, then press the AUTO button within 2 seconds . The display will show a flashing blower icon for 20 seconds , after which all vacuum fluorescent segments will be displayed if there are no on-demand DTCs present. If DTCs are present the EATC module will display "00 00" and then on-demand DTCs. Record all DTCs displayed.
•If any DTCs appear during the self-test, carry out the diagnostic procedure. Refer to the Electronic Automatic Temperature Control Module Diagnostic Trouble Code Index and follow the ACTION for each DTC given. See: Diagnostic Trouble Code Descriptions
•If a condition exists but no DTCs appear during the self-test, GO to Symptom Chart Condition: The EATC System Is Inoperative, Intermittent or Incorrect Operation. See: Symptom Related Diagnostic Procedures
•To exit the self-test and retain all DTCs, press any button except DEFROST. The EATC module will exit the self-test and retain all DTCs.
•To exit the self-test and clear all DTCs, press the DEFROST button. The EATC module will exit the self-test and all DTCs will be cleared.
•Always exit the self-test before powering the system down (system turned OFF). Once the self-test is exited, the ignition switch must remain ON for at least 30 seconds to allow the door actuators to automatically recalibrate.
•Continuous DTCs will be deleted after 80 ignition switch ON cycles after the intermittent fault occurs.

Electronic Automatic Temperature Control Module - Retrieve Continuous DTCs
The EATC module will retrieve only continuous (intermittent and hard) DTCs when carrying out this procedure.


•Retrieval of continuous DTCs can be initiated after cycling the ignition switch from OFF to ON. Normal operation of the climate control system stops when retrieving continuous DTCs.
•To retrieve continuous DTCs, press the OFF and DEFROST buttons simultaneously and release, then press the RECIRC button within 2 seconds . All vacuum fluorescent segments will be displayed if there are no continuous DTCs present. Continuous DTCs are indicated by the presence of the degrees Celsius symbol (°C) on the EATC module display. Record all DTCs displayed.
•If any DTCs appear, carry out the diagnostic procedure. Refer to the Electronic Automatic Temperature Control Module Diagnostic Trouble Code Index and follow the ACTION for each DTC given. See: Diagnostic Trouble Code Descriptions
•If a condition exists but no DTCs appear, GO to Symptom Chart Condition: The EATC System Is Inoperative, Intermittent or Incorrect Operation. See: Symptom Related Diagnostic Procedures
•To exit and retain all continuous DTCs, press any button except DEFROST. The EATC module will exit the retrieved continuous DTCs mode and retain all continuous DTCs.
•To exit and clear all continuous DTCs, press the DEFROST button. The EATC module will exit the retrieve continuous DTCs mode and all continuous DTCs will be cleared.
•Always exit the procedure before powering the system down (system turned OFF). Once the procedure is exited, the ignition switch must remain ON for at least 30 seconds to allow the door actuators to automatically recalibrate.
•Continuous DTCs will be deleted after 80 ignition switch ON cycles after the intermittent fault occurs.

Electronic Automatic Temperature Control (EATC) Module and Electronic Manual Temperature Control (EMTC) Module Cold Boot Process The purpose of the cold boot process is to allow the EATC or EMTC module to re-initialize and calibrate the door actuators. To carry out the cold boot process, follow the steps below.

1.Turn the ignition switch to the OFF position.
2.Disconnect the EATC or EMTC module electrical connectors.
3.Wait one minute .
4.Connect the EATC or EMTC module electrical connectors.
5.Turn the ignition switch to the ON position.
6.Select any position except OFF on the EATC or EMTC module. The EATC or EMTC module will now initialize and calibrate the mode doors. Calibration of the mode doors will take approximately 30 seconds .

Visual Inspection Chart Mechanical Electrical

• Audio unit
• Digital audio compact disc changer
• Antenna and two-piece antenna cable or electric antenna
• Radio speakers mounting/speaker cones
• Capacitive suppression bond wire and radio receiver hood bonding strap

• Central junction box (CJB) fuse:
  • 6 (15A)
  • 2 (25A)
• Ignition switch
• Circuitry
• Audio unit
• Video system

Audio Unit Self-Diagnostic Mode
NOTE: To enter the speaker walk-around test or audio unit self-diagnostic mode, the audio unit must be turned on and in radio tuner mode (AM/FM).

1. To enter the following tests, depress the desired preset button while in the speaker walk-around test or while in the audio unit self-diagnostic mode.

1. To exit the audio unit self-diagnostic mode, turn the ignition switch or the audio unit off.

1. If the concern remains and the fault is not detected, proceed to the Symptom Chart to continue diagnostics.

1. The audio unit self-diagnostic mode has five tests available:
   • Preset button 1 = Audio internal/external SELF TEST. This test is an on-demand self-test. If SELF FAIL is displayed, press TUNE > to scroll view the DTCs stored. Refer to the audio unit Diagnostic Trouble Code (DTC) Index. If the system is OK, SELF PASS will be displayed.
   • Preset button 2 = View/clear continuous DTCs. NO DTCS is displayed if no DTCs are retrieved. If DTCS FOUND is displayed, press TUNE > to view the DTCs retrieved. Refer to the audio unit Diagnostic Trouble Code (DTC) Index. To clear all DTCs, press the EJECT button. DTCS CLEAR will be displayed.
   • Preset button 3 = SIGNAL TEST. This test measures the average strength at the current tuner setting.
   • NOTE: Always DOCUMENT, CLEAR and CARRY OUT the audio unit on-demand self-test again.
     Preset button 4 = Software configuration level. This test queries each audio unit system controller for its software configuration level. SOFT LEVELS will be displayed upon completion of the query. Press TUNE > to scroll view the software configuration version level.
   • Preset button 5 = DISPLAY TEST. This test will light all the audio unit display segments for five seconds. When the test is complete, DISPLAY TEST is displayed on the bezel.