Tachometer does not Move?

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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The first thing you should do is check the fuse listed below. Then turn the key on and test for power at the brown wire at any of the coils to see if there is power.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the images (below). Let us know how it goes.
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Tuesday, September 16th, 2025 AT 12:12 PM (Merged)
Tiny
JOE1953
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  • 813 POSTS
I check all the fuses under the hood with a multimeter I didn't find any blown, I havn't use the test light yet. Do the Ignition switch need to be on for this test? I hope to find the problem soon the car need to be in working order.
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Tuesday, September 16th, 2025 AT 12:12 PM (Merged)
Tiny
JOE1953
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  • 813 POSTS
  • 2007 TOYOTA CAMRY
  • 2.4L
  • 4 CYL
  • AUTOMATIC
  • 328,000 MILES
I took #1 coil out and test for spark with a spark tester the type that ground to a bolt look like a spark plug. But I didn't see no spark and when I was doing the test smoke came from the top of the coil what cause the smoke? Since then the engine want start and dies anymore how do I fix the problem? I scan the computer for engine codes and I have P0351, P0352, P0353, P0354.
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Wednesday, September 17th, 2025 AT 8:30 AM (Merged)
Tiny
MECHTRIX
  • MECHANIC
  • 382 POSTS
These codes are for a faulty power supply for the 4 coils and since it smoked one of the coils you now need at leas that one I'd probably just get all 4 new as a set that's the starting point. Let us know when you get the coils we can help but keep in mind it might have also fried the wires inside the wiring harness but either way I'd say get some coils first and let us know. Also, I would not try starting the car any more until you get the coils out could damage the wiring if it isn't damaged already.
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Wednesday, September 17th, 2025 AT 8:30 AM (Merged)
Tiny
JOE1953
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I had already replace 4 new coils when I was testing for spark. I replace them after I scan for codes.
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Wednesday, September 17th, 2025 AT 8:30 AM (Merged)
Tiny
MECHTRIX
  • MECHANIC
  • 382 POSTS
Okay, great. Good looking out now can you make a short list for me as to what noticed first and what you're noticing now like
1
2
3
And so on
Like maybe top 5 things that are most important to you start from the beginning the worse thing you noticed to the least bad and also can you post a photo of the plugs and wires leading to the coils ? Then I'll look for the diagram you might need to solve this problem and I can help you if needed.
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Wednesday, September 17th, 2025 AT 8:30 AM (Merged)
Tiny
JOE1953
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I don't know how to post a photo of the plugs and wires. Will a crankshaft sensor cause no spark?
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Wednesday, September 17th, 2025 AT 8:30 AM (Merged)
Tiny
MECHTRIX
  • MECHANIC
  • 382 POSTS
Yes, it could but that's most likely not the problem at this point. We need to focus on the codes. Those codes are for a power supply problem to the coils which is why the smoke came out of your coil.
So I have a few things for you to try please do not try to start the engine until we've gone through all the steps.

1 unplug all 4 coils one at a time and label each one by writing on tape stick it on each one 1 2 3 and 4 keep them separate through all these steps
2. Now check the connectors /plugs to see if they look melted or anything looks abnormal about the connectors/plugs check them all then check them carefully again if good.
3. Then check the wires leading to the plugs might have to carefully unravel the protective skin covering the wires till you can see them clearly. Be careful not to damage any wires and check them about 6 inches back from the plugs.
4. Once you expose them and can see them check all wires for damage broken melted etc, once you get to that point then let us know but keep in mind there's a chance we might need to rewire some or all of them were not there yet but might go there if we do you'll need more instruction and a few supplies and diagrams to follow after you do these things let us know and we'll go to the next steps, okay? Be well and good luck.
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Wednesday, September 17th, 2025 AT 8:30 AM (Merged)
Tiny
JOE1953
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I didn't find any damage or broken melted wire.
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Wednesday, September 17th, 2025 AT 8:30 AM (Merged)
Tiny
KEN L
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I don't think all coils are bad at once, I would say the PCM is bad, I would search for a preprogrammed unit and swap it out, this should fix the problem.
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Wednesday, September 17th, 2025 AT 8:30 AM (Merged)
Tiny
JOE1953
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Explain how the reluctance ring and crankshaft sensor work on a toyota camry 2.4 and what both does? Engine crank but want start and no spark. The engine was starting up and stop Immediately but now it want start up.
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Wednesday, September 17th, 2025 AT 8:30 AM (Merged)

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