Motor swap problems

[Chuby]

I have been getting my Q (90 standard) back on the road as seen here zerothread/243086. The motor is From NAD in Atlanta and was in stellar condition. Used the new/used injectors off my old motor. My plenum hose kit off my old motor, used/new O2 sensors, etc off my old motor . I got it fired today but its idles really rough, cleans up about 2k. What should I check? My MAF is the same one that ran in my old car. I would really like to drive this car so any imput would be nice.
Modified by Chuby at 6:00 PM 4/22/2007

[carfrk666]

motor may need some time to break in or clean up

[Chuby]

I also changed the AAC valve because it is different on the US manifold so the plugs are different.

[elwesso]

Do you have a vacuum leak? What have you checked so far?

Is the idle rough or unstable? IE does the motor shake but idle at a constant speed, or does the idle jump up and down.

[Chuby]

I did have a vacuum leak at first

Do you have a vacuum leak? What have you checked so far?

Is the idle rough or unstable? IE does the motor shake but idle at a constant speed, or does the idle jump up and down.

I did have a vacuum leak at first but found what I had left unhooked and it did not seem to effect it much. It shakes alot and slowly will die, sometimes it just gets real low ( like 3-400 RPMs) and real rough and not die. I forgot to hook up the 6 prong knock sensor harness at first but did hook it up without resetting the ECU with no change. Do I need tp unhook the battery to reset the ECU for it to read the knock sensors?As far as checking things I was real careful when hooking up everything on the TB as I left out some things when I did my plenum hose job on my old motor so I do not think I left anything unhooked but I will check again tomorrow.

[Chuby]

Is there any difference between the US and JDM throttle body?

[Q45tech]

Nope. TCs and standard TB are only 2 versions.

Exhaust manifolds are different.

[Chuby]

Nope. TCs and standard TB are only 2 versions.

Exhaust manifolds are different.

Anything else I should look at? The car idles at about 3-400 rpms and seems to run real rich.

[Chuby]

Well I got it to idle steady at 7-800 RPMs today but it still shakes quite a bit and smells like it is runnin real rich at idle. What would be the probable cause of this?

[Rex]

Did you swap over your injectors or ohm the ones in the replacement motor?

[Chuby]

Did you swap over your injectors or ohm the ones in the replacement motor?

I used/swapped the ones from my blown motor that I bought from Pop. They were working fine when the car blew up about 2-3 months ago.