[Mk2] [Generic] Help Needed - Mk2 Mr2 Rev 3 Runs Lumpy When it's Wet or Cold

[jbypp]

Hi,

When it's rained or been very icy my MR2 runs badly until the engine warms up to normal temperature.

It misfires and you can see this on the rev counter.

I'm thinking I should start with some new spark plug leads but do you have any other suggestions?

Thanks for any help.

[Frustrated Pilot]

Depends on what version you have m8.

If you post in Mechanical more people will see your post.

It could be your cold idle sensor.