high revs

[WormGod]

Try to clean the following:

IAC (idle air control)

TPS (throttle position sensor)

440 is tricky since it mirrors a 171. A 440 can sometimes be related to a vacuum leak as well, but you would at least expect a 171 to be thrown in that case. Strange, but cars are made by humans so they are flawed as well. :P

[blacksambo]

Most likela vacum leak in the common chamber area. Try listening for a hissing sound?

[zadam123]

Most likela vacum leak in the common chamber area. Try listening for a hissing sound?

where is this?

[samneil2000]

Mine surges with the AC on. If I stop at a red light or something and the compressor kicks in and I'm not mashing hard enough on the brakes, it will move forward. A lot of times I'll slip it in to neutral while at a stop to prevent this.