Why is my car only firing on the driver's side? I have no fire on the passenger side at all. Checked the plugs and the coils they are fine. Help.
Oct 9, 2021 at 2:44 PM
No spark on the driver's side of engine
2011 FORD MUSTANG
DON KLINE
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Hello,
Just to clarify, are you getting codes on misfire for one side, or have you physically checked for spark?
If you are getting misfire codes for one side, then it could be due to a clogged catalytic converter on that side.
https://www.2carpros.com/articles/engine-misfires-or-runs-rough
https://www.2carpros.com/articles/how-to-test-a-catalytic-converter
Please let me know little bit more about what you are experiencing and what you have done so far.
Thank you.
Just to clarify, are you getting codes on misfire for one side, or have you physically checked for spark?
If you are getting misfire codes for one side, then it could be due to a clogged catalytic converter on that side.
https://www.2carpros.com/articles/engine-misfires-or-runs-rough
https://www.2carpros.com/articles/how-to-test-a-catalytic-converter
Please let me know little bit more about what you are experiencing and what you have done so far.
Thank you.
Image (Click to enlarge)
Oct 9, 2021 at 3:50 PM
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I changed them to the other side, and they worked fine. Unplugged the ones on the passenger side and it didn't change the way the car runs. It doesn't have any fire to them at all.
Oct 9, 2021 at 5:02 PM
It's like it has no electric power going to the coils.
Oct 9, 2021 at 5:17 PM
Check the coil connectors (harness). Do you have power there?
Take a look at the wiring schematics below, it is for the coils. As you can see, they have separate ground for each bank.
If you have no power to the coil connectors, then it could a short in that harness.
Take a look at the wiring schematics below, it is for the coils. As you can see, they have separate ground for each bank.
If you have no power to the coil connectors, then it could a short in that harness.
Image (Click to enlarge)
Oct 9, 2021 at 6:36 PM
Could i still have power to the driver's side? Because I have power to the driver's side just not the passenger side.
Oct 9, 2021 at 6:54 PM
That right. As you can see, they have separate ground for each bank. The issue could be after the junction.
Oct 9, 2021 at 7:28 PM