MX-5 Misfire Fixed! - The Bodger's Guide
Вставка
- Опубліковано 26 сер 2024
- We take our usual on the cheap approach to diagnosing and repairing an ignition misfire on our budget MX-5 project car. Our (usually) impeccably reliable Mazda MX5 developed a misfire - running rough and losing loads of power.
All internet experts pointed to HT leads or worst case, the expensive coil pack. With our trusty tool kit and a handful of new parts, we get stuck in.
Did we fix it? Indeed...
If you've enjoyed the video, please don't forget to like, comment, share and subscribe. If there's any jobs you'd like to see us tackle on the Mazda (even if it's just to see us fail...), please let us know in the comments below.
Nice video, well presented. Just bought a '90 and getting familiar with the bits will take some time. This helps. Thank you from Canada.
You're great on camera, helped us a bunch. Keep making vids!
for me the plug at the back was filled with engine oil so I did the gasket and leads, spark plug in one go. I miss the proper silicone sealant tho..
Extremely clear i will give it a go
I changed plugs and wires, but the "misfire" CEL didn't go away on my '97 NA Miata until I put fuel system/injector cleaner in the gas tank.
Patient cured.
Update; CEL "Intermittant misfire"came back. I changed plugs, plug wires, and coil pack. Same CEL came back, but it took a while.
Any ideas?
@@ralphaverill2001 Plug connector wires? Dunno, not enough info. Check valve timing and pickup sensor.
I am having the same issue, I've also replaced, plugs, wires and coil pack as well as fuel injectors. Were you able to find your fix?
@@leninduran1780 Now and then I get the “random misfire” CEL. I use my friends plug-in computer to re-set and usually go several months w/o a CEL.
A lpt: if the spark plug wires don't change the situation it may be worth the money to replace the o2 sensor before spending a lot of money on a set of new coils or AFM... don't ask my why i know that. Don't.
Why do you know that...? We suspect a lot of money has been spent discovering that fact...
Let's just say.. yes.
you mean this? www.auto-doc.pt/bosch/673784?gshp=1&gclid=Cj0KCQiAuefvBRDXARIsAFEOQ9Fcboq4oGQ2w4g0WoeNlVNhEp26mE0vV2ijJJ5xVW7NQnZR5smfd8caAjHoEALw_wcB
sorry for the portuguese website its just that i've had misfires also and i've spent a lot of money trying to resolve it
Ivo Silva did you ever figure it out....
Hahaa thanks a lot for the pro tip
I think its a good idea to put Never Seize on the plug threads; especially with aluminum heads.
Our 1992 is alive and well - 3 decades old!!
Thanks a lot!
it helped me a lot
Plugs causing a problem? Unbelievable...
is it only ever those 3 things or are there more?
my 2000 nb 1.6 has similar problem but only on hot start it starts just fine but imidetly the idle drops to about 500-600rpm and when i blip the throttle it finds the corect idle right after that and stays there but it's been getting worse lately since it even dies when i start it and don't blip the throttle. can you help me? I have a suspition that it might be coilpack but i hope it isn't i'm broke and can't really afford 300 pounds for an upgraded coil pack and i don't want to put a new OEM one in it either because the problem would eventually come back.
I have exactly same car and exactly same issue now
I also have the exact same problem. Only on hot start. Already replaced bougies and bougie cables. Did you guys find a solution?
Im having the same problem right now! Anyone ever find what it was?
very helpful - basic question - perhaps a stupid one too - but HELP ! to remove the plugs on the 1.8 mk1 - which plug removal tool do i need and is it on ebay etc ? thanks in advance
America: “Mahzdah”
UK: “Māzdur” 🙃
Hi there iv just come across your vlog I have a 2007 nc mx5 I get a poor idle when stopping at a junction when I press down on the clutch any ideas ?
Did you have a CEL during this issue?
When the plugs are amber on the top part of the insulation, is it a bad sign? Or it is normal?
Hello Spiros.
It tends to be burnt on crud from the engine bay, so can depend on where the plugs are. The Mazda's are buried in the head (like a lot of twin cam engines) so you'd expect a little bit of it. It would probably wipe off with a bit of thinners.
These were in a shocking state to be fair. They do need to be replaced on a regular basis - I think on the Mazda it's every two years/24k miles. And it'll be a case of how they perform and old plugs don't perform at all well.
Thanks for watching, and stay tuned!
U don't like spending money? ?? Wtf else r u supposed to do with it? ????,,!
Good point! I'll try and save where I can though. Cheers
Must be a conservative, killing the economy...