I have a 1988 260e 180,000 miles. new heads timing chain and have recently replaced fuel filter spark plugs and wires. I also adjusted the air intake or sensor plate or whatever you call it. it was sticking. However when driving after exceleration coming to a stop the car dies but starts right back up. What to do? what could it be it stalls 50 % of the time unless you give it the gas while braking. It doesn't act like it is sputtering it just dies. What could it be?