vtec4max

there is an extra line, where does it go? the throttle body doesn't have the vacuum line on there and I'm guessing that that's for that emission box. is that correct? someone please help me out. My engine starts out good but then it surge like crazy, I haven't tried changing the AIC but Im' almost positive it's not that I'm using the 99 SI harness and there are a few of present plugs that are not on my engine, all sensors are there though. Please someone help me out. thanks


Modified by vtec4max at 12:18 PM 5/13/2007

philosofy1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtec4max &raquo;</TD></TR><TR><TD CLASS="quote">the is an extra line, where does it go? the throttle body doesn't have the vacuum line on there and I'm guessing that that's for that emission box. is that correct? someone please help me out. My engine starts out good but then it surge like crazy, I haven't tried changing the AIC but Im' almost positive it's not that I'm using the 99 SI harness and there are a few of present plugs that are not on my engine, all sensors are there though. Please someone help me out. thanks </TD></TR></TABLE>

tell me more about your motor.
you are using a 99 harness, but what year del sol did the motor come from?

does the block say B16A2 or does it say B16A3?
also, are the hoses hooked up to your map sensor? any CEL?

vtec4max

well, what I have is a fully built minus after market sleeve LS/Vtec. I don't know for sure, but I'm pretty sure the intake manifold is the delso vtec one. B18A1 and JDM B16 head the year that's stamp on the head is 89, (8/9). I'm going pre OBD to OBD2 and I guess that's my biggest problem. the intake manifold is the one that has 3 line going across the top of the manifold and has a port on top of the manifold.


Modified by vtec4max at 12:34 PM 5/13/2007

vtec4max

here's a picture of the same intake manifold that I have. the vacuum line that's on the top of the manifold where does it go?

http://server3.pictiger.com/im...7.php

sal35dm

the intake manifold that you pictured is from an obd2 b16. from a 99-00 civic si or the 96-97 del sol vtec. this is the intake manifold for a b16a3 ob1 94-95 del sol vtec motor
it is a little different im not exactly sure(couldn't find the diagram) how the obd2 vacuum lines connect. but here is the vacuum line diagram for obd1 b16. from solblu's web site.
http://www.knology.net/~jedikl...1.gif
im not sure if i answered your question. but hope that this helps.

importfan0103

what year is the throttle body from, i had a surging problem and the TB just wasnt tightened dwn enough, i am also assuming the car is a 99-00 si or obd2b application correct? I did a swap into a obd2a and obd2b with a b16a2 head on a b18c block(poor man ITR) let me know whats up, what TB on the p30 intake manifold

vtec4max

I plugged the top port and the surging when it's cold but when it reahes operating temperature, it surges again. speedo and tach don't work either, need help badly. I thinking of swapping in a different thottle body and see if it helps. ohh, it idles high but not sure how high, I know it's a lot faster than a normal idle.

importfan0103

it sounds like a vacum problem try a different throttle body, again what year car engine, also sounds like u could have the plugs mixed up

vtec4max

hmmmm, I could try playing with the plugs but I kind of dout it, because if I would have mixed it up, i would run like a bag of crap, but thanks for the info. I'll give it a shot.

94hdelsol

Dude,..

im haveing the same problem on my car. First of all let me tell you about my swap:

94 Honda Del Sol Si
JDM B16A = stock
JDM B16A Tranny = stock
JDM P30 = stock
Useing D16z6 injectors for the time being

I used my stock Si harness with Knock Sensor added up to it. I thought it was straight up swap until I ran into the vacum lines. It runs and Vtec comes on normally.everything is fine but,.. at stop lights/signs it idles up to 1500 then back to 1000 rpms alot. At times it will idle up and down like 6 times then idles normal. The intake manifold is like the one you have and the throttle body is like different from the ones I seen. It doesnt have a FITV(fast idle thermo valve) at the bottom of the throttle body. Nor it doesnt have a IAT (intake air temperture) which they are located on the 1st air runner from the right on D series motors they are located in the back of the intake manifold. I will take some pics in the morning and show you what Im working with.

94hdelsol

Alright fellas,.. here it is,.. hope the pics turn out good.

http://i118.photobucket.com/al...2.jpg
http://i118.photobucket.com/al...3.jpg
thse are the pics under the intake manifold ( nothing to connect/plug )

http://i118.photobucket.com/al...7.jpg
this is a pic of a IAT (intake Air Temperture) sensor from my D16z

http://i118.photobucket.com/al...1.jpg
this is a pic of my B16A intake manifold,.. notice were the IAT sensor
goes is block off like yours.

http://i118.photobucket.com/al...6.jpg
this is a pic of the map sensor-notice on the lower left of the pic
you can see the TP (throttle position) sensor. YES you can get these
two mixed up. If you do it WONT START PERIOD. Just go with the color
wires on my as a ref.

http://i118.photobucket.com/al...7.jpg
these are the two hose lines from the charcol canister. Were they go,.
dont know. but,..
http://i118.photobucket.com/al...1.jpg
on this pic a EVA purge control solenoid valve. Taken from my D16z

http://i118.photobucket.com/al...8.jpg
The smallest of the two lines that come out of the charcol canister might go to this? You can barely see the nipple. Should I run the line to the EVA purge valve then to the manifold or the line by itself?

http://i118.photobucket.com/al...3.jpg
now this pic,... does this nipple need to be connected somewhere?,.. I've seen pic of this nipple pointing up instead of sideways.

Other things you should know:

I have no FITV (fast idle thermo valve) located under the throttle body
In the throttle body it has only one hole instead of two
I've taken off the IAC (idle air control) and cleaned it with carb+choke cleaner
The motor was taken off from a running 93 hatchback. He inturn kept the
ECU and engine harness. I bought a stock p30 and just used my Del Sol Si
engine harness.

I pretty much doubled checked everything. So I hope these pics help.
let me know what you guys come up with.

thanks again

Oh when I do get this problem situated do you think I should go with a chipped p28 ecu like Skunk2, Mugen etc?

domepeezo1

it sounds like you guys have TB problems for sure
one my cars you to surge like that and it was from a bad seal in my TB where the hose hooked up

94hdelsol

vtec4max-

I hope you dont think that I "jacked" your thread. I know I written alot on the problems I have on mine - so I am sorry.

I just might change the seal. The one thats inbetween the TB and Manifold. The only hose thats hooked up with the TB are the hoses that are underneith the TB for the coolent. Other then that only the map sensor is the only thing that connected to it. I plan to purchase another Manifold that has all the plug in I need . But I have to remember that Im running a JDM p30. I still have the Del Sol Si stock p28. I dont know what to run. Fix my idle problem and use the p30 - or fix the idle problem and run a chipped p28?

Really dont know what to do until I get that other Manifold.

Bejita

Wow...Almost none of your vac lines are done correctly. You need an OBD1 intake if you're running an OBD1 harness man.

94hdelsol

Its not a OBD1 intake?,.... came out from a 93 Hatch and it ran well with no problems. ,... wow

Modified by 94hdelsol at 7:36 PM 6/17/2007


Modified by 94hdelsol at 7:37 PM 6/17/2007

Bejita

Hmmmmm. I swear I thought he said it was an OBD2 intake........I dunno....sorry.

94hdelsol

Bejita -

You see Im confused. I was told that it was a "plug and play". It makes sense that i need to change my intake manifolds. So thats what Im gonna do.

thanks for your input tho. I'll up date n time when the intake manifold comes in.