Question92 CADILAC ELDORADO,HAS SAT FOR 2YRS.CRANKS FINE BUT HAS NO SPARK,ALSO TACH DOES NOT MOVE WHEN CRANKING.HAD IGN MODULE CHECKED (OK)PULLED DIST ,TESTED HALL EFFECT SWITCH (OK)TESTED PICK-UP COIL(OK)TESTED IGNITION COIL(OK) BLUE WIRE TO COIL,BATTERY VOLTAGE I'M A HONDA TECH LOST WITH THIS NO SPARK SITUATION. ECM? CAN YOU ADVISE ME WHERE TO GO FROM HERE? WAS TOLD WHEN CAR WAS PARKED IT WOULD RUN TILL IT GOT HOT THEN SHUT OFF,BUT RESTARTED AFTER SETTING A WHILE. HELP PLEASE!
AnswerOK. Let's check the computers for codes:
1. Ignition ON, Engine OFF.
2. Simultaneously push and hold the OFF and WARMER buttons until the whole display illuminates and release the buttons.
3. Codes will start to appear as LETTER/NUMBER combinations on the display until you see PCM?.
4. Write down all these codes and let me know what they are.
