Increasing rpm of acura / honda from engine bay

[aaronac8]

In a number of videos eric increases the rpm’s of an acura / honda engine from the engine bay (i.e. when increasing engine rpm to 2500 to purge the cooling system). How is this done? Is there a switch near the throttle body?

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[William McClurg]

There’s no switch, he’s actually manipulating the throttle body. You can open the throttle valve up by hand the same way you would if the accelerator were pressed and the accelerator cable pulled the throttle open. If you are confused, get a buddy to press the gas while you watch what happens on the throttle body.

[aaronac8]

I have a 2009 acura tl. Doesn’t this car have Drive-By-Wire Electronic throttle control? And if so, isn’t there a motor that controls the valve of the throttle body, not a cable?

[MD1032]

Yes. It’s only possible to increase the RPM of your engine using the gas pedal. Don’t try to physically manipulate a DBW throttle body in any way.

[William McClurg]

IDK… You asked me how Eric did it in his cooling system bleed video. I told you. Now you’re asking me how to do it on a completely different engine. I don’t know. I’m pretty sure there’s an idle adjustment screw on your throttle body, but I’d be a little surprised if it could take idle all the way to 2500rpm. I wouldn’t do it that way. The point is to get the engine up to operating temperature such that the cooling fans activate. If it were me, I’d just sit in the driver’s seat and hold the accelerator down. That, or cut and try a wood wedge to fit behind the accelerator until it sits where you want it, then put a toolbox on it. Just my $.02.

[Author]

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