talde

hello there. i am new to this site and my brother and i just finished replaced his engine in his 1994 accord. i believe the engine code is f22b2? well its a non-vtec. 4 cylinder. well we kept everything on the engine. like the accs. and emission. it'll start up but when it does its idles at almost redline. everything on the intake manifold has new gaskets. egr and the iacv was cleaned. there are no leaks and the injectores are seated properly. we though the t/b was leaking. so wat we did was physicllay block the t/b. but it still idles high. we dont really know wat to do. we checked the harness and it seems to be in the right place. thanks in advance.

CD5 Jeebies!

sounds like you got some vacume lines crossed??

foxharojs18

Try unplugging your TPS (throttle position sensor) does your car still rev high. If so try replacing it that should fix your problem. When you start your car and if you unplug your tps it should rev up and stay there. Which sounds like your problem. I could be wrong but this just happened to me a couple of weeks ago.

amckee

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by foxharojs18 &raquo;</TD></TR><TR><TD CLASS="quote">Try unplugging your TPS (throttle position sensor) does your car still rev high. If so try replacing it that should fix your problem. When you start your car and if you unplug your tps it should rev up and stay there. Which sounds like your problem. I could be wrong but this just happened to me a couple of weeks ago.</TD></TR></TABLE>This is absolutely false. The TPS does nothing to control fuel. Period.

MAP pressure at a certain RPM is how fuel is determined on a Honda. If you plugged the TB then it was sucking air from somewhere. Fuel won't burn without it. Do you have a vacuum gauge you can hook in line with the MAP. I've heard that the MAP and the TPS, even though they are different, can still physically be plugged into each other.

awdgsx96

Did you try adjusting the intake air control valve?

foxharojs18

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by amckee &raquo;</TD></TR><TR><TD CLASS="quote">This is absolutely false. The TPS does nothing to control fuel. Period.
MAP pressure at a certain RPM is how fuel is determined on a Honda. If you plugged the TB then it was sucking air from somewhere. Fuel won't burn without it. Do you have a vacuum gauge you can hook in line with the MAP. I've heard that the MAP and the TPS, even though they are different, can still physically be plugged into each other.</TD></TR></TABLE>

EARTH TO DIPSHIT. I SAID NOTHING ABOUT THE TPS HAVE ANYTHING TO DO WITH THE FUEL....?WTF!!! WHAT THE HELL ARE YOU TALKING ABOUT?

If you unplug your TPS when your car is idleling it will rev up and stay there meaning the TPS electrical circuit consists of a 5V supply line which is grey and a ground path line which is black, both provided by the ECM. A third wire is used as a signal line to the ECM. By monitoring the voltage on the signal line, the ECM calculates throttle position. As the throttle valve angle is changed (accelerator pedal moved), the signal voltage of the TPS also changes. At closed throttle position, the signal of the TPS is low -1.25 volts. As the throttle valve opens, the signal voltage increases so that, at wide open throttle it should be approx. 5 volts.

The ECM can determine fuel delivery based on throttle valve angle (driver demand). A broken or loose TPS can cause intermittent bursts of fuel from the injector and an UNSTABLE IDLE, because the ECM thinks the throttle is moving<U></U>.

A problem in any of these TPS circuits, will set either a code 21 or 22. Once a trouble code is set, the ECM will use an artificial default value for the TPS, and some vehicle performance will return.

So what were you saying about TPS and fuel?

amckee

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by foxharojs18 &raquo;</TD></TR><TR><TD CLASS="quote">

EARTH TO DIPSHIT. I SAID NOTHING ABOUT THE TPS HAVE ANYTHING TO DO WITH THE FUEL....?WTF!!! WHAT THE HELL ARE YOU TALKING ABOUT?

If you unplug your TPS when your car is idleling it will rev up and stay there meaning the TPS electrical circuit consists of a 5V supply line which is grey and a ground path line which is black, both provided by the ECM. A third wire is used as a signal line to the ECM. By monitoring the voltage on the signal line, the ECM calculates throttle position. As the throttle valve angle is changed (accelerator pedal moved), the signal voltage of the TPS also changes. At closed throttle position, the signal of the TPS is low -1.25 volts. As the throttle valve opens, the signal voltage increases so that, at wide open throttle it should be approx. 5 volts.

The ECM can determine fuel delivery based on throttle valve angle (driver demand). A broken or loose TPS can cause intermittent bursts of fuel from the injector and an UNSTABLE IDLE, because the ECM thinks the throttle is moving<U></U>.

A problem in any of these TPS circuits, will set either a code 21 or 22. Once a trouble code is set, the ECM will use an artificial default value for the TPS, and some vehicle performance will return.

So what were you saying about TPS and fuel?</TD></TR></TABLE>

Change in value of the TPS has NOTHING to do with fuel delivery. Period. Not on a Honda. It is used to determine EGR usage, auto trans shift points, a/c cutoff, injector off on closed throttle plate above 1200 RPM, among other things, but not fuel delivery. You can plug up the TPS from a spare throttle body and actuate it while the car is idleing and I guarantee you NOTHING will happen. The ONLY 2 things that determine fuel are MAP and RPM. Sorry they didn't tell you that in the Haynes manual you copied from.