Hope someone can help me ID what's wrong with my 81 Accord. I have had trouble with the idle ever since I've owned it - tends to idle too low and die when it's not choked. But it hasn't been too big of a problem and I've adjusted to it.
However, Monday night on the way home the car just started chugging like it was running out of gas. I was low on gas at the time so I thought that was it. Put gas in it, and the problem persisted and got worse. No power under load, until about 3500 rpm, and even then it chugs badly. When I choke it and start it up, it now races up immediately to like 4500 or 5000 rpm. Before it would go to like 3000.
I've replaced the fuel filter, fuel pump, plugs, wires, cap, rotor, and air filter. I'm getting spark all the way around, and I know I'm getting fuel. I'm wondering if it's the carb, but I have never touched one so have no experience diagnosing it. Also wondering about an exhaust blockage, but it doesn't seem that way.
At this point I'm lost. Anyone have any thoughts? Really appreciate any input. Thanks.