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Anonymous Posted on Jul 14, 2014

Start engine sensor super saloon problem

There is not ignition spark, where is the location of the sensor

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Hard starting

This problem can be hard to track down , it could be caused by several thing's ! A bad check valve in the fuel pump letting fuel drain back into the tank , not keeping fuel line pressure up , a crankshaft position sensor can also cause this as well as an ignition control module !
Checks
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DEFINITION: Engine cranks OK, but does not start for a long time. Does eventually run, or may start but immediately dies.
Preliminary
?€¢
Refer to Important Preliminary Checks Before Starting in Symptoms - Engine Controls .


?€¢
Inspect the powertrain control module (PCM) grounds for being clean, tight, and in the proper locations. Refer to Engine Controls Schematics .


?€¢
Search for bulletins.

Sensor/System
?€¢
Test the engine coolant temperature (ECT) sensor for being shifted in value. Connect a scan tool. Compare the engine coolant temperature against the intake air temperature (IAT) on a cold engine. The ECT and IAT sensor values should be within ?± 3?°C (5?°F) of each other. If the ECT sensor is out of range with the IAT sensor, check the resistance of the ECT sensor. Refer to Temperature Versus Resistance for resistance specifications. Replace the ECT sensor if the resistance is not within the specification. If the sensor is within the specification, repair the ECT signal circuit for high resistance.


?€¢
Inspect the mass air flow (MAF) sensor installation. A MAF sensor that is incorrectly installed may cause a hard start. Important: The embossed arrows on the MAF sensor indicate the direction of the intake air flow. The arrows must point toward the engine. Install the MAF in the proper direction. Refer to Mass Airflow Sensor/Intake Air Temperature Sensor Replacement .


?€¢
Inspect the camshaft position (CMP) sensor for proper mounting and/or a bad connection. A long crank time occurs if the PCM does not receive a CMP signal.

Fuel System
?€¢
Inspect the fuel pump relay operation. The fuel pump should turn ON for 2 seconds when you turn ON the ignition. Refer to Fuel Pump Electrical Circuit Diagnosis .


?€¢
A faulty in-tank fuel pump check valve allows the fuel in the lines to drain back to the tank after the engine stops. Refer to Fuel System Diagnosis .


?€¢
Inspect both injector fuses for being open. An open injector fuse causes four injectors and four ignition coils not to operate. Replace the fuse. Inspect the injector circuits and the ignition coil circuits for an intermittent short to ground.


?€¢
Inspect for incorrect fuel pressure. Refer to Fuel System Diagnosis .


?€¢
Inspect for a restricted fuel filter. Refer to Fuel System Diagnosis .


?€¢
Inspect for a contaminated fuel condition. Refer to Alcohol/Contaminants-in-Fuel Diagnosis .


Ignition System
?€¢
Test both injector fuses for being open. An open injector fuse causes four ignition coils and four injectors not to operate. Replace the fuse. Inspect the ignition coil circuits and the injector circuits for an intermittent short to ground.


?€¢
Inspect for proper ignition voltage output with J 26792 Spark Tester. Refer to Electronic Ignition (EI) System Diagnosis .


?€¢
Remove the spark plugs and check for the following:


-
Correct heat range


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Wet plugs


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Cracks


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Wear


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Improper gap


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Burned electrodes


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Heavy deposits

Refer to Spark Plug Inspection in Engine Electrical.
?€¢
Determine the cause of the fouling before replacing the spark plugs if the spark plugs are gas, coolant, or oil fouled. Refer to DTC P0172 or P0175 for diagnosis of the rich condition. Refer to Spark Plug Inspection in Engine Electrical for diagnosis of coolant or oil fouled spark plugs.


?€¢
Inspect for bare or shorted ignition wires.


?€¢
Inspect for loose ignition coil grounds. Refer to Electronic Ignition (EI) System Diagnosis .

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1answer

I have problem with my ECU.. a transistor inside was burnt up..What could have caused it..

Several things can cause a transistor to burn out. Water or moisture contamination is the most common. Also, voltage spikes in the charging system,low voltage due to poor or corroded grounds or loose connections,bad solder points due to age and vibration that creates excessive resistance on the circuit board.
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What is yhe ckp sensor on a 1999 ford windstar

The CKP sensor is actually the Crankshaft Position Sensor. It is responsible for ignition timing. When each piston reaches the position for firing, the CKP sensor informs the engine control module. The engine control module then responds by sending a signal to the ignition coil to fire the corresponding spark plug for that piston. If the sensor is defective typically you will have a no start condition for the engine, but the engine will still turn over when you try to start it.
It is located on the front of the engine next to the harmonic balancer. You should see a plug connected to it.
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Truck wont start on starting fluid it is a ford f350 2001 v10

I would think that you have a spark problem. There is an Ignition Relay or ECC Relay. Your need to know certain Pin connectors to test the functions of the Crankshaft sensor and Camshaft sensors.

You may have a "check engine" light showing on the dash and it is not apparent because the dash lights have not cycled off with a no start condition. You may be able to scan the truck for a diagnosis.

While you may have fuel pressure at the test port, your injectors may not be opening. But since you used starting fluid to no avail, most likely you lack spark.

Your truck should have an ECC or Ignition Relay and perhaps an ECC diode. These parts provide power to the other components of the spark system. The secondary parts like Crankshaft sensors, the Camshaft sensors, and others use the power from these Relays.

You can satisfy yourself about fuel pressure by checking pressure at the test port, but spark seems to be your issue.

Please comment on my info.
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2002 bmw 530d saloon wont start. Its not fuel, its not the battery.It turns on and all electronics work OK! wat could be the problem?

How about the spark? Do the spark plugs get spark? If not, then check out the ignition system in the service manual.
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There is no spark thus car won't start. the battery is fine, it turns over good, it is not flooded, the spark plugs are new, the ignition coil was just replaced, what else controls the spark

The Crankshaft Position Sensor and the Ignition Control Module also control the spark. It depends on whether your vehicle is equipped with the 2.2L engine or the 2.4L engine as to where these components are located and what they look like.
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CODES-PO301-PO303-PO316- CHANGED PLUGS & WIRES. STILL MISS ON START UP, GOES AWAY MOST OF THE TIME ABOVE 1000 R.P.M

P0301 - Cylinder 1 Misfire Detected.

Causes:
- Improper spark plug at cylinder #1
- Insufficient compression at cylinder #1
- Incorrect fuel pressure
- The injector circuit is open or shorted at cylinder #1
- Fuel injector #1 may be faulty
- Intake air leak

Solutions:
- Perform Injector Service
- Replaced Spark Plug #1
- Replaced Injector #1
- Replaced Ignition Coil #1

P0303 - Cylinder 3 Misfire Detected.
Follow info from P0301.

P0316 - Misfire Occurred In The First 1,000 Engine Revolutions.

Causes:
- Damaged CKP sensor.
- Ignition System.
- Fuel Injectors
- Running out of fuel
- Fuel Quality
- Base engine
- Damaged Powertrain Control Module

Solutions:
Usually the P0316 is combine with a P03XX codes. The P03XX code indicates in which cylinder the misfire occurred.
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Wont start

is the your car engine cranking when you try to start, first check spark plugs ignition coils, remove one ignition coil and spark plug fix the spark plug in to the ignition coil then connect ignition coil to wiring and keep spark plug body touching on ground of engine head mettle parts, ask some one to crank engine then you can see is the plug sparking or not, do the same way to all the coils and plug otherwise you have to buy a ignition spark tester, is the all the coils and spark plugs are OK then check the fuel pump, it's sitting in under rear seat, before that do one thing disconnect oxygen (O2) sensor wiring and crank engine, the thing is if your oxygen sensor completely dead fuel pump will stop working, if engine start after disconnect O2 sensor, replace new O2 sensor, otherwise need to check fuel pump relay fuse and fuel pump. is this information helped you? please vote me and give a comment.
Oct 15, 2010 • 1998 BMW M3
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1answer

Location of knock sensor on a 1998 Saturn 4 cylinder

A knock sensor is threaded into the engine block and is supposed to sense when the engine starts to ping or spark knock and reduces the ignition timing accordingly.The knock sensor is located on the side of the engine.
  • Turn the ignition OFF.
  • Raise the vehicle.
  • Disconnect the knock sensor harness connector.
  • Remove the knock sensor attachment bolt and the knock sensor.

  • Important: The larger metal contact area of the knock sensor MUST be toward the engine block. DTC P0327 may result if the sensor is installed backwards.

  • Install the knock sensor and attachment bolt with the larger metal contact area toward the engine block.

  • Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

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