1993 Ssei Sputtering When Speeding Up

my 1993 bonneville ssei w/supercharger has started to sputter or buck when speeding up. it only does it when to boost hits above "0". I had the supercharger replaced and it still does it. any ideas???

Could have saved a buck on the SC, very unlikely it was playing a part. Look at your fuel pressure, certainly have the classic signs. They're also known for failed or weakened coils, which will cause a stumble. Fuel is a good start though.

My 94 SSEI does the same thing. My mechanic told me it is a magnet that the camshaft sensor reads. It is mounted on the camshaft gear and it is a little involved to replace a $1.75 magnet. Several hundred dollars.

I am about to buy a 93 SSEi myself and it does this same thing but only when the pedal is put to the floor,up to that it dips along just fine ??

Have you figured out your problem yet ??

My first thought also was the coil pack as I had a similar problem a while back with a 84 century 3.8 T-type and it had a bad / weak coil pack.