crank no start no pulse at coils.
May 16, 2024 at 2:17 PM
The engine cranks but does not start, no pulse at coils?
2005 NISSAN ALTIMA
PECAN
- MEMBER
- 4 POSTS
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getting no pulse at coils.
May 17, 2024 at 4:45 AM
Hi,
The first thing I suggest is this. If you have a live data scan tool, see if there is an RPM signal when cranking. Or see if the tachometer moves at all when cranking. If there is no RPM signal, suspect a faulty crankshaft position sensor.
This sensor is located slightly behind and above the starter. I attached a pic below.
If that isn't the issue, we need to check for power. Each coil will have a red wire at connector pin 3. With the key in the run position, confirm there is battery voltage at those wires and let me know what you find.
Let me know.
Joe
See pics below.
The first thing I suggest is this. If you have a live data scan tool, see if there is an RPM signal when cranking. Or see if the tachometer moves at all when cranking. If there is no RPM signal, suspect a faulty crankshaft position sensor.
This sensor is located slightly behind and above the starter. I attached a pic below.
If that isn't the issue, we need to check for power. Each coil will have a red wire at connector pin 3. With the key in the run position, confirm there is battery voltage at those wires and let me know what you find.
Let me know.
Joe
See pics below.
Images (Click to enlarge)
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May 17, 2024 at 1:30 PM
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