SOURCE: P0440 Evaporative Emission Control
You need a charcoal canister and vent control valve.
You also need the EGR solenoid valve (I think it the brown one).
Valve is located in the valley of the V, towards the transmission side of engine.
Do these 1st and reset light. You may have other issues but you have to start here.
SOURCE: 1994 suzuki swift gti
My 1994 GTi was doing the same thing. The car should idle a bit fast when cold, say 1500rpm, due to the auto-choke. However, 2800rpm is too high. I had a look at my throttle system and could not workout how to adjust the auto-choke idle speed seperate from the normal idle. So I reluctantly had it serviced by the agents, they cleaned out the throttle body and adjusted it. It is better, 1900rpm, but still a bit high for my liking.
SOURCE: car vibrates at idle.
you may have a pulley out of balance. ie harmonic balancer, steering pump, alternator. try increasing idle, set it at 850-900.
SOURCE: 1992 Honda Accord will not pass emissions inspection
The EGR will not cause this issue, this sounds like the Catalytic Converter was not hot enough, another trick that worked for this kind of fail was a fresh oil change, make sure the engine is up to normal operating temp, which would be just short of 1/2 scale on the temp guage, if it runs cold replace the thermostat, I did smog tests for 30 years and these are the things I did to get cars like yours to pass given the test results you gave for the tailpipe.
SOURCE: 1991 honda accord lx getting bad gas milage
I have known when the distributor starts to go bad it will not fire 100%, that could cause your failure in good gas mileage!
Engine stalling and rough run
issue at low speeds
This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control
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