This might be some good reading for you..
Aiflow meter pot source - Bosch CIS
Also search for surge, surges, and surging..
Many will reference the air flow meter, and a worn potentiometer on the side..
89 300SEL Money Pit
92 Blown Buick Ultra Pimpmobile 220K and adding 1K per week
88 Wagoneer Slightly modified (Not for soccer moms)
04 Kia Sedona with every option... NICE