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94 dodge stealth DOHC no spark or injector pulse
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cewjoe71
Novice
Jan 18, 2010, 2:50 PM
Post #1 of 5
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94 dodge stealth DOHC no spark or injector pulse
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I know I have asked this question but wanted to give the entire situation. The car died like it ran out of gas, no engine clatter at all (internal interference). once putting gas in it i found out there was no ignition fire or injector pulse. I have been through the ignition system and am wondering if the crank sensor can shut the engine off. I have replced the cam sensor already. checked the ECM for leaking compasitors, PLEASE HELP!!!
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zinnoberot
Novice
Jan 18, 2010, 4:08 PM
Post #2 of 5
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Re: 94 dodge stealth DOHC no spark or injector pulse
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my vote would be the crank sensor, if its bad the engine wont run or run really bad.
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steve01832
Veteran
Jan 18, 2010, 4:13 PM
Post #3 of 5
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Re: 94 dodge stealth DOHC no spark or injector pulse
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If you have correct fuel pressure and are certain the timing belt is good, at the crank sensor you will need to check for battery voltage at terminal 3 with a multimeter. Terminal 2 should have 5 volts on it and terminal 1 is ground. If all checks out good, set the meter to 20 volts dc scale. Red probe of meter on termimal 2 and black probe on terminal 1. Have an assistant crank the engine. If the meter switches rapidly between 5 and 0 volts, sensor is ok. If no voltage switch, replace faulty crank sensor.
P.S. If you don't have battery voltage between terminal 3 and ground, it is fed from the MFI relay. Post back with the results.
Steve
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cewjoe71
Novice
Jan 19, 2010, 8:41 PM
Post #4 of 5
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Re: 94 dodge stealth DOHC no spark or injector pulse
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will the crank sensor shut the engine off in a mits. 3000gt DOHC thats the key to my dilema?
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steve01832
Veteran
Jan 20, 2010, 2:41 AM
Post #5 of 5
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Re: 94 dodge stealth DOHC no spark or injector pulse
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Yes, the crank sensor sends an RPM signal to the PCM. Without this signal, the PCM doesn't know the engine is being started, therefore, it will not fire off the coils or the injectors. That's why if you have fuel pressure and nothing else, suspect a tach signal problem. Also, if the crank sensor fails while driving, the vehicle will just stall out and will not refire.
Steve
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