[Jamesdem1123]

yea i have a 91 st with auto (4a fe piece wanting to convert to 3s gte, lol) and for sum reason when i barely tap on the throttle the rpms will fluctuate and occasionally stall, i replaced the pcv valve and that stopped it. For a week, and now its back. Anyone no how to fix this? thanx

 

[Jamesdem1123]

Vacuum leak? How many miles on your engine? I have a 4AFE too.

i dont think its a vacuum leak but ill check, it has about 68k on it