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Ah thanks my friend, now i got it.

Gonna take look to it, im experiencing very hard starts, only time it dont hard start if i immidiately start after i turned off the engine. So i guess fuel is draining (leaking) from somewhere... Before hard start thingy I gotta sort that misfire out..

But where is that vacuum line? Been looking for that from the + marked thing near intake but I only can find two fuel lines (metal ones) going to it? And mines 3.1 mpfi.

Been wondering why i need to crank for 5-10s before it starts and it seem to be a fuel problem.

Yeah well since the winter (or nowadays the salt/rain flow) is coming and its getting cooler i guess it might take some time I try to put the new ICM on its place, though its not that bad job after taking it apart couple of times. :D This is what it looked like in the ecu wiring harness mount in the...

Aight got video here: https://www.youtube.com/watch?v=PKmsTYtgk_Q&feature=youtu.be For me it looked quite erratic, and u can see how the engine is stumbling and shaking while spark is "cutting". I got R on while I took the video (to get lower rpm and therefore more misfire). With my kn...

That connector needs some cleaning and some high quality silicone glue that dries clear/black to seal it. If your spark is erratic, it could be the cause. I have a 94 Sunbird with the 3.1 that has a slight misfire but I know mine is like that because it needs coils/plugs/wires as they are the origi...

Yeah L bodys are what they are. Still beast cars... Some good news. Managed to sort out the cause for the problem. :) I was just spraying water over intake and those vacuum pipes lines over there. Still had spark light in place, and I noticed the spark was cuttin every now and then while the engine ...

When the ICM goes it will make a coil go bad and replacing that one leads to the replacement going bad too. My 90GT did that to me. Yeah I got no trust for that ICM anymore. Today I found something really inresting. Instead of spark problems I can have fuel pressure problem. Went to my car when it ...

Aight, after some deep investigation: Earlier on the spring i managed to rule out, that the problematic cylinder was cyl nro. 1. I replaced all coils on that time. Didnt help. Today I investigated more and noticed that problem was lying in cyl nro. 4. These cylinders are hooked to same coil. Do I ha...

Maybe 2 years. Not so old, but nowadays winters are very wet and rainy so I wouldnt rule them out completely, many things worn faster here than in USA I guess. When I put the ecu back in, I am gonna fire the car up, wait for one cylinder to drop and use spark light to check if theres spark coming.. ...

Even though I am not Beretta owner (some day I propably am... :) ) I think this forum is the only place left in the world I could get help from. As you see I am from Finland, have owned Corsica now for almost two years. There have been this and that to do ofc, but now I am facing a dead end soon. I ...