MX6 Sluggish when heats up

davyb · 10-30-07, 10:28

Hi

This on going problem with my mx6 v6.
I have noticed when its cold it rev's and pulls great, as soon as it starts to heat up, it wouldnt pull your cap off, and is really sluggish.
I've changed plugs, TPS, PCV valve, used injector cleaner, its had new plug leads and no better.
PLEASE HELP, lorries are faster than me on motorway.
Davy

**cf_z** · 10-30-07, 11:13

definitly in the wrong forum my man

93lsmazda · 5-5-09, 18:10

i just learned today how to do this today, so dont feel bad
type this exactly into google
MX6 Sluggish when heats up :MX6.com - Home for the Mazda MX-6 Enthusiast
it will let you search only mx6.com
if you dont find the answer it will give you the right fourm.

**zlyricist** · 5-5-09, 19:12

id guess its probably ignition related. in my experience, ignition problems seem to arise once the car has reached temp. pull the codes

youngfan · 5-5-09, 22:03

When you say sluggish is it misfiring, or just slow to rev yet smooth?

Check your battery terminals. make sure they are free of corrosion. Something very simple to do and a surprising culprit. An mx-6 i used to drive would misfire constantly only after heating up. It was due to very bad terminal connections (the battery terminal literally melted due to such high resistance).

Of course pull codes (get cheap OBDII from auto parts store).