Small miss fire

[81pw]

I've done two efi setups one a tr and other tp. From both I'm getting a very very small miss at idle when hot. Revs about 800. Miss goes away as soon as I drive. When cold it doesn't have a miss until get it's to about 1100. The missfire are about 2 to 3 seconds apart. I've replaced leads and plugs on both. I'm not sure if I've wire something wrong. I thought maybe cos the compressions so low. Does anyone else have this problem. cheers

[Rally_2.6LC]

havent had same problem but try checking the internals of your dizzy or the coil maybe if its old


Cheers Matt

[Tj.]

Once you've done that, check your manifold for air leaks. The increased vacuum at higher revs could be sucking it closed.
Just throwing ideas around btw.