i just did a motor swap on my ef hatch. i took a motor out of my standard hatch and put it in a dx. its a 1990. the motor idles high, about 2k. then starts to idle a little lower, and after i while the idle gets down in the 300-400 range while shaking before basically killing itself. what could it be? it seems to do this only when the temp guage goes up.

,matt

 

bump

 

anyone.

 

help.

 

That sucks......bump for you man.

Some crazy valve or sensor not hooked up properly?

 

check your fuel pump..

 

I had this same problem. A machanic said fuel pump/ecu/??? they didnt know but i put a known working fuel pump in the and hard wired it to make sure it was recieveing the fuel. Same thing. i ended up selling the car to buy a lil poodle. Never figured out why?


I would like to know aswell.

 

Adjust your idle? look at your throttle body while this happens and see if anything is moving when it stalls out. Also, will it do this EVERY time you start it? If the motor used to work, I'm going with incorrect vacuum line routing or idle speed...