tigueremalo

ok so i installed my old motor on my new car and so its running fine BUT now idle sits at 3k rpms with the idle adjusting screw closed all the way so i removed the dashpot and i step on the gas a little and of course with the vacuum lines that go to it capped and its still idled at 3k so i manually push that **** where the gas pedal wire goes on a little back so it can idle normal so any ideas of what i can do? ( pic below )

Lamchop0000

is your throttle cable too tight?
does the throttle plate fully close?
any spare/open nipples on the manifold?

tigueremalo

is your throttle cable too tight?
going to check that i thought of earlier

does the throttle plate fully close?
dont know yet

any spare/open nipples on the manifold?
what you mean?

Lamchop0000

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tigueremalo &raquo;</TD></TR><TR><TD CLASS="quote">
any spare/open nipples on the manifold?
what you mean?</TD></TR></TABLE>
check for vacuum leaks.

tigueremalo

sorry to be a NoOb but the vacuum lines check them? oh by the way is that the original dashpot for the 91 crx si throttle body because my mechanic said he had to do some work to the dashpot but i dont know what he did

Rex-Si

I'd look at the routing of your vacum lines , they look like some of them are hooked up wrong but it's hard to tell for sure with that pic.
Take a better pic without the writing added so we can see what youve got going on.

downest

Agreed, your vacuum lines are all effed up. The one on the FPR is right, as is the PCV. Run the dashpot thing to the left nipple on the front there. You should also have the big brake booster one (not in pic), and one to the MAP on the firewall. Cap off everything else, toss that charcoal canister.

Rex-Si

Yeah , the map looks all fuked up.

tigueremalo

is that betta??????
by the way that line that goes from the intake to the throttle body is pretty long if you look carefully is that not good???

by the way whats the charcoal canister for why should i throw it out for?

Rex-Si

This should help you get started .

downest

Good, someone else already posted a huge pic...
With canister:


Without (also without firewall MAP, it's on the TB):

downest

Ick, that pic is dirrrty! I'll have another one for you tomorrow with the right routing too, cleaned the bay today with simple green and a pressure washer.

tigueremalo

so just remove charcoal canister and the dashpot and cap everthing off?

tigueremalo

removing that map sensor is going to turn my CEL on right?

downest

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tigueremalo &raquo;</TD></TR><TR><TD CLASS="quote">so just remove charcoal canister and the dashpot and cap everthing off?</TD></TR></TABLE>

Remove the canister, I don't know about the dashpot. The reason you don't see one in my pic is that it's a Z6 manifold, which doesn't have one.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tigueremalo &raquo;</TD></TR><TR><TD CLASS="quote">removing that map sensor is going to turn my CEL on right?</TD></TR></TABLE>

Yes, don't remove your MAP sensor. Not only will you throw a code but it will run like **** too. Mine is gone, again, because of the Z6 manifold. You can see it directly on top of the throttle body.

temp

your dashpot is not properly run.

ludesrv

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by temp &raquo;</TD></TR><TR><TD CLASS="quote">your dashpot is not properly run.</TD></TR></TABLE>

TPS is off angle. Adjust it and it will fix itself. Had this happen on my prelude.

temp

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

TPS is off angle. Adjust it and it will fix itself. Had this happen on my prelude.</TD></TR></TABLE>

you cant see the TPS in the pix?

ludesrv

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

you cant see the TPS in the pix?</TD></TR></TABLE>

No I know. But I bet you that's what's wrong. Mine was off I think it was 15 degrees and it would idle from 2500-4500 (4500rpm at start up = no good). We repositioned it and the car would idle from 900-1100. Mmmm...a nice idle.

temp

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

No I know. But I bet you that's what's wrong. Mine was off I think it was 15 degrees and it would idle from 2500-4500 (4500rpm at start up = no good). We repositioned it and the car would idle from 900-1100. Mmmm...a nice idle.</TD></TR></TABLE>

should idle at 750 . but the dashpot is clearly off, i could see it in the first pic i looked at.

ludesrv

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

should idle at 750 . but the dashpot is clearly off, i could see it in the first pic i looked at.</TD></TR></TABLE>

It looks fine to me . Maybe I'm not noticing it. At 750 the engine vibrates alot, causing the car to vibrate. I find at 1000rpm, with urethane bushing inserts, that the car vibrates alot less at idle, which is what I want.

temp

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

It looks fine to me . Maybe I'm not noticing it. At 750 the engine vibrates alot, causing the car to vibrate. I find at 1000rpm, with urethane bushing inserts, that the car vibrates alot less at idle, which is what I want.</TD></TR></TABLE>



compare this to his first image. he has his dashpot running to one of the purge solenoids. that is wrong and that could certainly cause the problem.

The dashpot slows the closing the of the throttle plate, considering hes got his setup wrong, this could be causing a funky idle.

ludesrv

Possibly, and it might be it since the map sensor isn't on the TB like on the prelude (obd1). Hmmm, meh, I gave my idea of a f-ed up MAP sensor. He needs to fix it and say what is wrong.

Rex-Si

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



compare this to his first image. he has his dashpot running to one of the purge solenoids. that is wrong and that could certainly cause the problem. </TD></TR></TABLE>

Thats why I found and posted the diagram. I figured he would print it and compare. He deff. has a few issues that need to be fixed. I'm thinking he needs to get it all routed right to fix the problem THEN work on finding out what lines he can do without. I think other ppl telling he does not need things is gonna confuse this kid.
Later,

ludesrv

Only lines you should removed are the charcoal canister lines. Block them off. Everything else you keep to make the engine run good. That's what I did. I'm runing 3 or 4 vaccum lines.