Question about 2001 Hyundai Elantra
I had an accident with my 2001 Elantra 4 door, manual. I had extensive work done on the front end. I got my car back and it worked fine for 3 days. On the 4th day the check engine light started to flash. There is no particular pattern as to when this will happen. If the light flashes when I am moving the car will buck. If it flashes when the car is idling when I am at a light or parked, the car sometimes cuts out. I brought it to my usual garage and they couldnt pull a code. There is nothing stored because its just an engine light flash. Hyundai dealer confirmed no codes stored. Hyundai thinks it might be a wiring issue. 1st garage advised me to drive the car until the car breaks down or the light goes solid so a code can be pulled. here is the list of things that were replaced: Hood panel, radiator support, left and right headlight assembly, radiator, windshield washer bottle, left fender liner.
Any suggestions as to where I should go from here?
Pull the code(s) at the moment the Check Engine light is flashing. Purchase an OBDII scanner (Auto Zone, Car Quest, O'Riely's, etc.) Be ready when it happens... do not shut off the engine ... plug the OBDII scanned into the DLC (Data Link Connector) and retrieve the code(s) at the moment it happens. If you still don't retrieve any codes when this happens, you have a malfunctioning ECM (Engine Control Module). Before you replace it (if this actually happens - no codes and Check Engine light is flashing), Disconnect both battery cables and touch them together for 30 seconds. Reconnect them to the battery and drive vehicle to see if it happens again (could be junk/corruption in ECM memory banks). If it happens again, the ECM is malfunctioning. REASONING: Whenever the "Check Engine" light comes on, there is ALWAYS a DTC (Diagnostic Trouble Code) stored in the ECM (Engine Control Module). If no codes are retrieved, there's only one cause - ECM MALFUNCTION!
Posted on Jun 06, 2009
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Posted on Jan 02, 2017
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