Hello, My 92 305 TBI with a 5 speed is so sluggish it's just nuts. It's been gradually getting worse. It has pretty new AC Delco plugs and 8mm wires. The cap and rotor I haven't replaced. It idles fine and never stalls but I have to be light on the pedal or it just kind of boggs down. I'm going to go get a cap and rotor now just because I haven't yet. And I haven't done anything else to it either except changed the oil and filter and I did change the fuel filter and air filter. What do you think I should do to just make it feel like it's basically supposed to? I would really appreciate any advice. Thank you.

 

Could be a clogged cat.

 

I put in a new one a lil over a year ago to smog it. Could it be that if it's that new? Sorry I didn't mention that before.

 

Could be a number of things. Low compression being the worst. Bad gas, low fuel pressure clogged fuel filter coil going out, 1 of the 2 injectors not spraying correctly egr stuck open. Fuel pressure regulator going bad. Start with a compression test see if its good then spec all your egr components then fuel then ignition system

 

Sounds like a fuel delivery issue, definitely replace the fuel filter and run good gas through it and see if you notice a change, then I would start looking at fuel pressure and injectors. If all those check out I'd move onto spark. It's a good idea to go get a new cap and rotor since it's a quick and easy change

 

Thank you guys. I will look into and try what you've said and post what I find out. I appreciate the advice.

 

Make sure the ign. timing advances when you rev it. If it doesn't, it'll feel like a 2.5.

 

Never hurts to put in a new oxygen sensor as well. Though I'm no expert on the subject. Limited experience. Once.

Anyone may feel free to disagree about O2 sensor. No, really.

 

X2 on the ignition advance. Mine would bog unless you were almost off the throttle.