Does anyone know the min-max desirable idle revs speed for an mpi sei?
I have no idea how many revs mine does on idle because the needle just sits below 800 (starting position), and doesn't move until I open the throttle.
The reason I ask is that she is rather rough (think v8 judder!) on idle - yet the moment you blip the throttle she calms down.
If I nudge the accelerator slightly and take the revs up to just over 800 (very fractional movement - no noticable increase in engine noise), she's calm as anything, and behaves herself very well.
Wondering if I should adjust the cable slack on the butterfly (and also if there is an easy way to DIY this - on my old cinq you could take up a little bit of slack wth a screw adjust, like the brakes on a mountain bike).
EDIT: Sorry - should probably mention that she's a 2001 abarth with 27k on the clock, new hg recently and all other "rough idle suspects" ie plugs, leads, filter, oil, rad etc have either been checked or replaced in the last two weeks, and ecu reset since to re-train itself.
I have no idea how many revs mine does on idle because the needle just sits below 800 (starting position), and doesn't move until I open the throttle.
The reason I ask is that she is rather rough (think v8 judder!) on idle - yet the moment you blip the throttle she calms down.
If I nudge the accelerator slightly and take the revs up to just over 800 (very fractional movement - no noticable increase in engine noise), she's calm as anything, and behaves herself very well.
Wondering if I should adjust the cable slack on the butterfly (and also if there is an easy way to DIY this - on my old cinq you could take up a little bit of slack wth a screw adjust, like the brakes on a mountain bike).
EDIT: Sorry - should probably mention that she's a 2001 abarth with 27k on the clock, new hg recently and all other "rough idle suspects" ie plugs, leads, filter, oil, rad etc have either been checked or replaced in the last two weeks, and ecu reset since to re-train itself.
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