I am not sure about the throttle body gasket. I know the flow tube should be replaced. Your problem may be that the flow tube is plugged up with carbon, which is very common with the Acura egr system. More then likely there is a reason for the throttle body gasket to be replaced. there could be a link between a vacuum leak and the egr system at the throttle body.
ok more air flow....did you change to a larger throttle body?
Lubricate Change cable Replace throttle body before replacing throttle try cleaning it out real good as a bad enough carbon build up can cause it to stick. It would help to know what kind of car. If the car has fuel injection, you probably need to clean the throttle plate. This is done by removing the throttle body and spraing the inside of the the throttle with throttle plate cleaner. Buy a bottle and read the directions on the can. This will also help improve your performance and gas mileage.
A tune up (minor) consists of replacing the spark plugs. A major tune up would be spark plugs, plug wires, airfilter, fuel filter, PCV valve. oil change, and throttle body cleaning with a fue injection cleaning. Depends on how far you want to go with the tune up.
You should have a check engine light illuminated. If so check the codes.
The 3.8L engine found in some years and models of Buick cars uses a throttle body to regulate the amount of air flowing into the engine. This throttle body has a butterfly valve on the front which is opened and closed with the throttle cable. The throttle body needs occasional maintenance, including cleaning and lubricating the linkage. To do this, you can remove the throttle body from the engine, which should take about an hour to do.
They come out the top of the throttle body. Clean area thoroughly before replacing the injectors to avoid any dirt getting in to the system.
You can adjust the idle from the throttle body. Replacing the throttle body might have accidentally change the idle speed. The idle speed adjustment screw can be turned either way to raise or lower the idle.
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There can be a few things leading to this. First suggestion is to change your ECTS. New ones are cheap at the dealer and are brass. A good cleaning of the throttle body is also suggested.
Sure you could do that by replacing the intake and TB with a carb. Your emissions will go up, your mileage and drivability will go down. I would not suggest doing it.
Have a good tune up including a fuel filter, injector cleaner plugs and wires with a throtle body cleaning..
throttle position sensor is located on the throttle body oposite of the throttle cable. Should be held on by 2 screw and a 3 wire plug.