toneh

iTrader: (1)

I'm pretty sure I'm getting a very slight misfire when it's raining
I can only feel it when I'm plodding at around 30ish with very light throttle
Its the same as the misfire I reported with tesco 99 vs v power
I've not investigated yet , but my first thoughts are coil packs , I've got no under tray but even so I've not noticed it getting wet around the coil area , or could damp just have an affect ?
No codes btw
Any ideas ?

poolio74

Sure its not your dodgy mapping!

Sorry couldnt help meself.

toneh

iTrader: (1)

Yawn

poolio74

Lighten up FFS

toneh

iTrader: (1)

Im fine mate , ok lol , lol , lol
That's so funny I've not heard that before
Happy now

poolio74

Not really no,i sense a little sarcasm in your post.

addi monster

iTrader: (6)

You beat me to the mapping one lol,

If it's only happening when its wet i would say you need to check every port of call that water can actually access mate,

Have you got a cone filter in the inner wing ?

toneh

iTrader: (1)

Don't you dare start on mapping lol

Yeah have a cone filter but it's not really in range of water from the inner wing + I'm mafless so I wouldn't expect a few drops to affect owt really
I can't help but think its a coil issue , and doesn't show misfire codes because it's not severe enough ( I'm guessing on that )

addi monster

iTrader: (6)

Take it for a spin in the wet and check the inlet mate and make sure it's not hoovering any up, Barring that its a check of everything water can touch like NPS plug ect ect.

Happy hunting

ps, Cant you map around it

toneh

iTrader: (1)

Lol yeah I probably could , but you're just hiding a problem
Do you think water could affect the nps ?

addi monster

iTrader: (6)

The NPS can cause a missfire mate so i would of thought if water can get in and cause a short then why not

There will be a whole host of things that could be wrong mate, I only mentioned one possibility (which it probly isnt) Good luck

toneh

iTrader: (1)

I know what you mean ,could be owt , i hate little niggles like this . I would rather the problem get worse or the car break down so you know for sure what the problem is
I'll investigate , or pull it apart completely lol

rickya

iTrader: (18)

Bad earth somewhere in engine bay or water getting into footwell onto ecu?

toneh

iTrader: (1)

Is water on the ecu a common fault on scoobys ,

addi monster

iTrader: (6)

Water on the brain for most owners is more a reality

rickya

iTrader: (18)

Rainwater.

toneh

iTrader: (1)

Yeah I know you mean water gettin in rain / washing , it was very common on e36 BMW , didn't think it was as much a problem on scoobys , I'll take a look and anyway , you never know

360ste

iTrader: (1)

As you say it only happens on light throttle I don't think it is a missfire due to dampness. On previous cars when a missfire occured it usually occured when the car was under load. On my scooby I had a coil pack go faulty and when driven lightly the car was mangeable but if I pressed the throttle it was a no go. Light throttle missfire sounds to me more likely to be a fuel issue. This used to happen on my cars with Carbs when on light throttle due to a blocked jet. On heavy throttle a different jet was used allowing full fuel delivery.