bennyhill007

I have a 1991 5.0 V8 TBI, it stalls when I go from Park to Reverse/Drive. If I feather the accelerator into gear, it will run fine. Feels as if the idle is set too low, but I since set the timing to spec.
I since changed the MAP, IAC, spark plugs, EGR, Temp sensor, ECM, TPS, Cap, and Rotor to no avail. My friend has suggested replacing the fuel pump and injectors.

Kevin

vacuum leak.

jimmydaleo

I agree. get a can of carb cleaner and spray around vacumm hoses until erradic idle happens.

JadedRelics

Clean the throttle body if no differance Then look into changeing the injectors ! Those spider packs are famouse for leaking .

warrick

I also have a 1991 5.0 V8 TBI, that stalls when I go from Park to Reverse/Drive no matter what i do replaced the torque converter and lock up switch next is the tps hope that works