I have a gsr, I swapped into my hatch, it runs fine .

except when it starts it has a high idle, but goes down when just sitting but when I give it gas or Til I try to drive it goes to 2500, until I release the clutch and then goes down........ and it seems to bog when I shift to the next gear,

what would cause this everything is stock, I have a del sol t.b. on there with a ls gasket. not sure if that would cause the problem?

 

1st, the easy thing...make sure the throttle plate moves freely.

What did you do for a clutch? Do you have any other issues that would indicate a throwout bearing?

other than that at the moment, make sure all the vacuum lines are hooked up correctly.
edited for spelling...I'm retarded...

 

yea clutch is good, it drives fine.... just idles weird, yea vaccum right, and throttle bodie is from a del sol with a ls gasket., the throttle plate moves fine....

 

any black smoke at idle? running rich at idle would cause it to bog and lag between shifts (no load rich condition?)

 

make sure that all the vacuum ports have been accounted for. Since your hatchback didnt have cruse control (im guessing), and the GSR motor came from a car that does have cruise control, there is one port that is left blank. This port is very small, and it is on the driver's side of the intake manifold on the main chamber. Search around, its very small. You can use a vacuum line with a screw and JB weld to cover it up.

also make sure that your TB gasket really is sealing. If you took off an old gasket, there may be a small peice of it left over and creating a gap. Did you properly clean the throttle mounting location on the intake manifold and the throttle body's mounting location itself?

 

yea the exhaust smokes alot, also I am throwing one code IAT intake air temp, cause I dont have it plugged in..

 

yes I have all vaccum lines capped off I used vaccum caps....and the t.b. gasket is sealed,

 

ummm...yes, plug that in NOW. That is the density portion of the "speed density system"!

 

I cant until I change, throttle bracket, and fuel rail the fpr is right on top of it....so it makes it impossible to plug in....

 

ok, well, I'm pretty sure thats your problem. It transitions rich to prevent lean conditions when the throttle opens and thats probably your bog. It doesn't know enough about the air coming into the engine to give the proper amount of fuel, so its guessing pig rich to be safe. Part throttle suffers, WOT can mask it for a while.

 

lol are you serious?!!! you wondered why your car wasnt running right and you didnt have a sensor plugged in? cmon bro.

Here's a crash course in honda:
the ecu CALCULATES the amount of air in the intake manifold by first measuring the air temp, and then the MAP reading. it then takes the pressure and temp reading and makes up a number as to how much air is being ingested...for EACH combustion cycle. It's a fast motha. It needs the final calculated number to know how much fuel to spray. Roughly X+Y = Z where X is temp, Y is pressure and Z is fuel. if you have two variables..there's no real way to solve the problem. So your ecu is guessing the fuel curve based on TPS, O2, MAP and other readings.

 

lol thanks I just didnt know how serious the one sensor was thanks guys ...