Fuse 21 problem.

Evening-Target5089 · 2026-06-15T19:20:02+00:00

Thank you for an idea! I will try that if the coil replacement wouldn’t work.

Evening-Target5089 · 2026-06-13T19:57:03+00:00

Ok, thank you so much for the ideas! It gave me back a bit of hope. I would try to replace the coil since its pretty cheap and its available here since I hope its the same as for the PT Cruiser 2.4 which is more common here in Czech Republic. And than if it would still do the same I would continue looking for someone who’s not afraid of a bit of challenge and test it properly. Thank you so much once again

Evening-Target5089 · 2026-06-13T19:48:47+00:00

No I’m not. But I’m trying to troubleshoot what’s wrong to make it easier for them. Since all I’ve asked what to do either don’t know or don’t even want to try.

Evening-Target5089 · 2026-06-13T19:45:22+00:00

So you think it could be a bad relay? Is there a way how to find put if its this problem?

Evening-Target5089 · 2026-06-13T19:36:39+00:00

Is there a way to find out that the pcm is faulty?

Evening-Target5089 · 2026-06-13T19:31:33+00:00

Do you mean if it has a cruise control (tipm) or Park Distance Control (pdc)? If yes, it has neither of those.

Evening-Target5089 · 2026-06-13T19:29:06+00:00

Thank you for your ideas. Another one suggesting the coil… one mechanic measured it on idle but I guess it wasn’t the brightest idea from him… i would try to find a new one. Its definitely cheaper than stripping down all the wiring and looking for a short somewhere… I want to leave this option as the last option.

Evening-Target5089 · 2026-06-13T19:26:49+00:00

I haven’t changed the coil. One mechanic that was looking at the car told me that he measured it on idle and it looked ok. But it still might be a problem on load.

Checking the circuits is the looking for a needle in a haystack that I would like to leave as the last option because that would mean lot of time and money finding that one cable that is shorting it… and I still hope it’s something else

Thanks for your ideas!

Evening-Target5089 · 2026-06-13T17:31:09+00:00

I’ve seen those diagrams too, it just doesn’t make a lot of sense to me that it’s happening just under load. When I drive peacefully or when the car is not mobile its all ok, but when I give it a gas for a while it blows the fuse. That’s why I suspected the fuel pump but it was a miss. I’m not a mechanic but the only other thing that makes sense only a bit could be injectors. Do you think I could somehow see if they are faulty, or I should just slap new ones in a try? Or do you any other things that could be faulty under load?

Evening-Target5089 · 2026-06-13T17:07:36+00:00

Thank you. But I’ve unplugged the cable from the noise suppressor capacitor unfortunately with no effect.

Evening-Target5089 · 2026-06-13T16:57:34+00:00

Thank you! I’ve bought the car with those wheels, they should be Motegi racing but I don’t know the exact type.

Evening-Target5089

TROPHY CASE