I have a 95 GMC Yukon w/225,000 miles truck when making wide turns

What is your question?

I changed spark plugs, wires, fuel pump and filter, air filter. I also have more than enough fuel in it. Check engine light comes on but intermittent this truck has an OBD1 in it. Brought truck to shop and had them check for vacuum leaks. Also truck shakes at around 35mph and stops shaking at around 70mph can anyone please help with this problem?

What makes this problem better or worse?

it seems to run better when the engine is cold

How long has your 1995 GMC Yukon had this problem?

A week