88 2.3 bogs down

88 2.3 non-turbo. Bogs down all across the rpm range except the lowest part. When I first start it it will be fine for a short time then starts to bog down. Here are the things I've checked/replaced.

New plugs, plug wires, rotor, distributor cap, ait filter, fuel filter, HEGO sensor, and external fuel pump.

I've cleaned the intake port on the EGR valve.

Things that I am thinking of replacing are the vacuum solonoids and the knock sensor. Knock sensor because my test computer says it might be bad. Anything anyone can think of that might help? This is driving me nuts and broke!

88 2.3 non-turbo. Bogs down all across the rpm range except the lowest part. When I first start it it will be fine for a short time then starts to bog down. Here are the things I've checked/replaced.

New plugs, plug wires, rotor, distributor cap, ait filter, fuel filter, HEGO sensor, and external fuel pump.

I've cleaned the intake port on the EGR valve.

Things that I am thinking of replacing are the vacuum solonoids and the knock sensor. Knock sensor because my test computer says it might be bad. Anything anyone can think of that might help? This is driving me nuts and broke! have you checked the cataleytic converter to see if its clogged

hey, i have a 91 ranger 2.3 liter that did the same thing when i would go out in the morning to go to school, i just unplugged my MAF( mass air flow sensor) and it stopped doing it, but then my check engine light stayed on so i just put a sticker over it. the MAF is the silver metal thing coming off the air box were the intake hose hooks up, some people dont know were its at, just in case you didnt