Question about 2004 Kia Optima

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No spark or gas

Changed ecm

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Problem could be faulty crankshaft position sensor or faulty camshaft sensor code scan vechicle for fault codes could have ECM wiring electrical problems poor grounding.

Posted on Oct 26, 2012

Testimonial: "it was faulty wiring thanks "

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2 Answers

Getting my car started


If the vehicle is getting fuel and spark and has decent compression it should start. You may have an issue with the injectors not working causing a no fuel supply to the engine. Does the check engine light come on during a bulb check? The injectors are normally fused and are usually under the fuse marked ECM or Ecm A or ECM B. It is also possible the vehicle may be flooded for some reason or another. You can try holding your foot to the floor ( this will shut off injectors) while cranking the engine to clear out a flooding situation

May 02, 2015 | Oldsmobile Cars & Trucks

1 Answer

Car cranks but wont start? No spark. Changed ecm relay no help. Ignition harness is good. No fault codes. Battery is good. changed ignition relay, no help. I think its the ECM but need more info to spend...


Yes, the ECM is the last thing to replace after all other possibilities. No spark could be bad ignition coil, bad Ignition Control Module (controls the coil circuits for spark), bad plug wires, the crank and cam sensors (for ECM to determine spark timing).

Check the ICM -it can be tested at a parts store. If good, check the crank sensor.

Mar 16, 2015 | Cars & Trucks

1 Answer

05 Chrysler 300 5.7l when crank engine turn over like it's getting too much gas. Check spark plug it's wet with gas on it. Spark plugs are new


I would check the coolant temperature sensor...the one that sends engine coolant temperature to the ECM. If the fail, they usually fail in the extreme, meaning that it tells the ECM that its something like -30 degrees F. This results in the ECM demanding tons of fuel in an attempt to start what it thinks is a very cold engine (much like the old chokes that were on older cars).

Mar 04, 2015 | 2005 Chrysler 300

2 Answers

I am not getting gas or spark


The fuel pump and coil are on two different circuits.
The fuel pump is on the 20amp ECM fuse and the coil, ignition module, and injectors are on a 20amp fuse #10. But the ECM fuse could keep the coil and injectors from working.
You would need to test the fuses in the box in the engine compartment, and the fuel pump relay and coil for voltage and ground. The pump relay is grounded by the computer for 3 seconds when the engine is cranked.

Sep 16, 2012 | 1996 Chevrolet Blazer

1 Answer

2005 equinox died n won't turn over again.


As with any no-start condition, you first need to know if it is no spark or no fuel.
You could try spraying carb cleaner or starting fluid into the air cleaner hose to check for no fuel. Or pull 2 or 3 plugs and check for spark.
Also take a look at the ECM for trouble codes.
It could be anything from a plugged fuel line to the gas tank to a bad relay to a dead ECM.

Jun 26, 2012 | 2005 Chevrolet Equinox

1 Answer

My 1989 chevy 2500 4.3 liter v6 wont start. I'm getting fuel and i have spark. I've replaced the coil, spark plugs and wires, ecm, checked the distributer and cap. Everything i have checked seems to be...


it looks like you changed all the ignition parts. so Yes you got fire......................but you don't have gas. or it would start. check for fuel again. somethings wrong. if you had gas, it would start. i dont think your getting fuel

Jul 31, 2010 | 1989 Chevrolet C/K 2500

1 Answer

1999 mazda prodege 1.6 wont start


no spark. maybe a broken timing belt, bad coil,crank sensor,ecm,ignition module,etc.

Aug 19, 2009 | 1999 Mazda Protege

1 Answer

The cilynder #1 and spark plug is wet with gas,I did chenged the injector an fuel pressure regulator,still the same engine is shaking, nissan sentra 1993


Did you change the spark plug?? Your car (1993) has a distibutor assy, which means it has ignition wires for each plug. How are your wires??cap?? rotor?? Have you ever done ignition tune up?? If the answer is yes and you have already installed new injector and pressure regulator (althoug it still could be a injection issue/ECM or computer, because ECM is what drives the injectors. If the ECM or wiring to #1 injector has an issue, the injector will not fire off and put gas into the cylinder, resulting in a misfire.) Remove #1 injector connector and check to see if you have power/12V on one side of the connector. If you have 12V there, than check the other wire for continuity to the ECM. You will need wiring diagram to find the right wire color at the ECM. That other wire goes into the ECM to the driver which opens and closes the injector depending on your demands as far as gas pedal input. That driver may be bad, causing the injector not to shoot gasoline. Than I would be looking into a engine issue, such as burned valve, or head gasket problem (coolant getting into #1 cylinder, flooding your spark plug). Tough to diagnose over the computer and not looking at it my self. Let me know what you find.

Dec 15, 2008 | 2000 Nissan Sentra

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