# Problem solved. **URL:** \ **Category:** SON240sx Automotive\ **Created:** [October 4, 2005, 7:06pm UTC](https://forums.speedlife.net/t/problem-solved/89188 "2005-10-04T19:06:20Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![SBC262TT](https://avatars.discourse-cdn.com/v4/letter/s/db5fbb/32.png) [@SBC262TT](https://forums.speedlife.net/u/SBC262TT)\ **Post date:** [October 4, 2005, 7:06pm UTC](https://forums.speedlife.net/t/problem-solved/89188/1 "2005-10-04T19:06:20Z")
Thanks for the help EDIT: I found a S14 blacktop FSM, i got the wiring done. The car still won’t idle, i’m sure it’s the vacuum leak. It sounds like it’s coming from the intake manifold or the back of the block, i tryed spraying some carb cleaner around there, no real difference in idle. I’d rather not take of the intake manifold, anyone have any idea what vacuum lines would be running around there that i should check? Just completed an sr swap, followed the guide on [heavythrottle.com](http://heavythrottle.com) but there are some problems. Edit: S13 redtop into S13 Fastback, FYI. Also i bought the motor off someone who just bought it off of Varun. Right now we are running the car N/A (SOHC Mafs right in front of throttle body) just to troubleshoot. One main problem is the car won’t idle, we attributed it to vaccum leaks, but after plugging up most if not all of them, the problem seems unchanged. There is one vaccume leak that sounds like it’s coming from the back of the engine block, you can really hear it between shifts when you let off the throttle sharply. Also, there is a random starting problem, it doesnt want to start up every time you crank it, unknown cause. I would appreciate it if someone could tell me what colour wires plug into the following: Cam Angle Sensor, throttle body position sensor, and Temprature sensor. Pics would be much appreciated as well. Thanks in advance for the help. ---
**Author:** ![Nave](https://avatars.discourse-cdn.com/v4/letter/n/e47774/32.png) [@Nave](https://forums.speedlife.net/u/Nave)\ **Post date:** [October 5, 2005, 3:50pm UTC](https://forums.speedlife.net/t/problem-solved/89188/2 "2005-10-05T15:50:11Z")
> [@SBC262TT](#): > > There is one vaccume leak that sounds like it’s coming from the back of the engine block, you can really hear it between shifts when you let off the throttle sharply. Is the vac line that should be going to the brake booster hooked up? ---
**Author:** ![SBC262TT](https://avatars.discourse-cdn.com/v4/letter/s/db5fbb/32.png) [@SBC262TT](https://forums.speedlife.net/u/SBC262TT)\ **Post date:** [October 5, 2005, 7:55pm UTC](https://forums.speedlife.net/t/problem-solved/89188/3 "2005-10-05T19:55:17Z")
I just hooked that up yesterday, the SR’s line was cut, so i used the KA’s line, the brakes work fine but i’ll probably completely remove the line to inspect it for cracks. The other thing i think it might be is some EGR related lines, difficult to track though, i’ll have to check in the daytime. Thanks for the input ---
**Author:** ![Jedi\_Car\_Fan](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)\ **Post date:** [October 5, 2005, 8:00pm UTC](https://forums.speedlife.net/t/problem-solved/89188/4 "2005-10-05T20:00:56Z")
How is the car running under load ? does it die out right away once you stop ? Are you sure the timing is proper ? Is the motor hesitating/knocking/ticking ? > [@SBC262TT](#): > > One main problem is the car won’t idle, we attributed it to vaccum leaks, but after plugging up most if not all of them, the problem seems unchanged. Have you tried to adjust the AICV ? there is a screw you can turn to adjust the idle… try bringing it up a few hundred rpm and see if problem remains. > [@SBC262TT](#): > > Also, there is a random starting problem, it doesnt want to start up every time you crank it, unknown cause. That is a problem if you are running a stock KA fuel pump… I ran mine for about a week and if I let the car sit longer then about 8-10hrs it would take a few cranks before it would want to start and then start on the next. Installed the Walbro and problem solved 😉 ---
**Author:** ![Gonad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gonad/32/5481_2.png) [@Gonad](https://forums.speedlife.net/u/Gonad)\ **Post date:** [October 5, 2005, 8:35pm UTC](https://forums.speedlife.net/t/problem-solved/89188/5 "2005-10-05T20:35:46Z")
Every wiring guide i’ve seen onlien is garbage. It doesn’t tell you the whole thing about wiring. I ended up using half of their wiring guide and the rest half I ended up tracing through the SR ECCS Basically every wiring under the dash harnessl match up with appropriate colour (assuming you have a DOHC - I don’t know much about SOHC) Up front the grey and brown connector you hook up according to the wires mentinoed on those sites (I ignored the A/C relay since I don’t have AC). What’s the idle at? Check timing. ---
**Author:** ![slipperysilvia](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/slipperysilvia/32/5485_2.png) [@slipperysilvia](https://forums.speedlife.net/u/slipperysilvia)\ **Post date:** [October 6, 2005, 5:20am UTC](https://forums.speedlife.net/t/problem-solved/89188/6 "2005-10-06T05:20:28Z")
hey dude, you shouldnt have anything EGR related on the motor…If you do, it will hit the steering column on any USDM chassis. Make sure u totally remove alll egr components off the motor, and block the hole on ure turbo extension accordingly. peace ---
**Author:** ![Hurricane](https://avatars.discourse-cdn.com/v4/letter/h/e9bcb4/32.png) [@Hurricane](https://forums.speedlife.net/u/Hurricane)\ **Post date:** [October 6, 2005, 9:46am UTC](https://forums.speedlife.net/t/problem-solved/89188/7 "2005-10-06T09:46:16Z")
The wiring guide on [srswap.com](http://srswap.com) is perfect. Everything you need is there. ---
**Author:** ![Gonad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gonad/32/5481_2.png) [@Gonad](https://forums.speedlife.net/u/Gonad)\ **Post date:** [October 6, 2005, 10:10am UTC](https://forums.speedlife.net/t/problem-solved/89188/8 "2005-10-06T10:10:21Z")
> [@Hurricane](#): > > The wiring guide on [srswap.com](http://srswap.com) is perfect. Everything you need is there. They aren’t aimed at total n00bs like me and I’m just nitpicking but for the most part it’s all you need. And my little rant on FA convinced the HT guys to update their wiring info. :run: ---
**Author:** ![SBC262TT](https://avatars.discourse-cdn.com/v4/letter/s/db5fbb/32.png) [@SBC262TT](https://forums.speedlife.net/u/SBC262TT)\ **Post date:** [October 6, 2005, 4:19pm UTC](https://forums.speedlife.net/t/problem-solved/89188/9 "2005-10-06T16:19:58Z")
As far as the EGR goes, i removed everything mentioned in the Heavy throttle guide, but i just left the line in the exaust manifold and plugged it, so i don’t have massive hole in it. I tried adjusting the idle screw, all the way to the right, it stalls out instantly, all the way to the left delays the time it takes to stall out by 5 or 6 seconds when you let off the throttle. When you have the car rolling it seems fine, but there is a very audible sound of air when you left off the throttle between shifts, i’m convinced it’s the vaccume leak, i tried to track it down earlier, with my hand on the throttle in the engine bay. I can’t track it down, but it sounds like it’s from the back of the motor, it’s only audible when you left off the gas and gets really loud before the car stalls out on idle. I inspected the brake booster line as best i could, it doesnt sound like it’s coming from there. I can hear it coming from there, it’s driving me nuts trying to find it with my hand in the engine bay. Is there anything else, maybe EGR related that is located behind the bock/ right where the intake manifold is? Also, i followed the wiring guide on Heavy throttle, it doesnt tell you what wire goes into the TPS (throttle postition senor) or the temprature sensor. Anyone mind looking into thier sr swapped cars and telling me what 3 color wires are going into these? Thanks for the responces so far. ---
**Author:** ![SBC262TT](https://avatars.discourse-cdn.com/v4/letter/s/db5fbb/32.png) [@SBC262TT](https://forums.speedlife.net/u/SBC262TT)\ **Post date:** [October 8, 2005, 9:49am UTC](https://forums.speedlife.net/t/problem-solved/89188/10 "2005-10-08T09:49:04Z")
update, one more problem till i have my heap running. Help appreciated. ---
**Author:** ![Jedi\_Car\_Fan](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)\ **Post date:** [October 8, 2005, 3:34pm UTC](https://forums.speedlife.net/t/problem-solved/89188/11 "2005-10-08T15:34:45Z")
If you have access to a “Seta Lean” torch you can use that to find out whether you have a vaccum/boost leak All you do is turn the Gas on “no flame” and wave the torch around the engine areas… if the motor revs up, then you have a leak in that area etc… Most people use Soapy Water and look for bubbles… with the torch setup the motor will rev up instantly giving a rather good idea where the leak is But if your leak is causing the motor to die out rather easily then its a huge leak… usually a tiny/small leak will result in an “Erratic Idle” meaning it wont sit still but moves up/down. So you may want to check the Throttle Body Gasket and make sure its sealed to the Manifold… I’d check the Exhaust Manifold to Turbo Gasket as well which is known for blowing and causing alot of problems. ---
**Author:** ![face](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/face/32/5504_2.png) [@face](https://forums.speedlife.net/u/face)\ **Post date:** [October 8, 2005, 4:04pm UTC](https://forums.speedlife.net/t/problem-solved/89188/12 "2005-10-08T16:04:05Z")
> [@Jedi\_Car\_Fan](#): > > “Seta Lean” torch oxyacetylene torch ---
**Author:** ![Jedi\_Car\_Fan](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)\ **Post date:** [October 8, 2005, 4:20pm UTC](https://forums.speedlife.net/t/problem-solved/89188/13 "2005-10-08T16:20:23Z")
> [@brianphung](#): > > [quote=Jedi\_Car\_Fan]“Seta Lean” torch oxyacetylene torch[/quote] Yes Thanks… couldnt come up with the proper spelling 😉 ---
**Author:** ![SBC262TT](https://avatars.discourse-cdn.com/v4/letter/s/db5fbb/32.png) [@SBC262TT](https://forums.speedlife.net/u/SBC262TT)\ **Post date:** [October 8, 2005, 7:37pm UTC](https://forums.speedlife.net/t/problem-solved/89188/14 "2005-10-08T19:37:09Z")
i just removed the intake manifold today to get a better look of the vacuum lines running through there, i’ll reply with what i find. ---
**Author:** ![DTS](https://avatars.discourse-cdn.com/v4/letter/d/8491ac/32.png) [@DTS](https://forums.speedlife.net/u/DTS)\ **Post date:** [October 8, 2005, 8:06pm UTC](https://forums.speedlife.net/t/problem-solved/89188/15 "2005-10-08T20:06:27Z")
using a torch is probboally the sketchiest and inefficent way of finding a vac leak i have ever heard… [http://www.vfaq.com/mods/ICtester.html](http://www.vfaq.com/mods/ICtester.html) do this, enjoy car. and if your turbo to manifold gasket is blowen the car will idle normally with no ill effects… ---
**Author:** ![SBC262TT](https://avatars.discourse-cdn.com/v4/letter/s/db5fbb/32.png) [@SBC262TT](https://forums.speedlife.net/u/SBC262TT)\ **Post date:** [October 9, 2005, 5:28pm UTC](https://forums.speedlife.net/t/problem-solved/89188/16 "2005-10-09T17:28:55Z")
After removing the intake manifold, i found no apparent source for the vaccume leak. The only vaccume lines that i found in that are were for the brake booster line (which we inspected, and re-clamped on tightly) and the IAC. For the IAC, we inspected the tubing for cracks and found nothing, and just put it back. Please note we have that capped off since there doesnt seem to be a place it goes. ``` I am completely out of ideas, so i just adjusted the throttle cable to always give it some gas, so it can "idle". This is a really bad way to do it, but i'm out of ideas. If anyone else has any ideas for where it could be leaking, please post. Keep in mind it's still running N/A, so no IC piping could be leaking. The leak still sounds like it's coming from the back of the block/ around the intake manifold. Thanks in advance ``` ---
**Author:** ![Alex](https://avatars.discourse-cdn.com/v4/letter/a/db5fbb/32.png) [@Alex](https://forums.speedlife.net/u/Alex)\ **Post date:** [October 9, 2005, 5:54pm UTC](https://forums.speedlife.net/t/problem-solved/89188/17 "2005-10-09T17:54:17Z")
> [@SBC262TT](#): > > After removing the intake manifold, i found no apparent source for the vaccume leak. The only vaccume lines that i found in that are were for the brake booster line (which we inspected, and re-clamped on tightly) and the IAC. For the IAC, we inspected the tubing for cracks and found nothing, and just put it back. Please note we have that capped off since there doesnt seem to be a place it goes. > > ``` > I am completely out of ideas, so i just adjusted the throttle cable to always give it some gas, so it can "idle". This is a really bad way to do it, but i'm out of ideas. > > If anyone else has any ideas for where it could be leaking, please post. Keep in mind it's still running N/A, so no IC piping could be leaking. The leak still sounds like it's coming from the back of the block/ around the intake manifold. > > Thanks in advance > > ``` wait lemme see if i have this straight. you have the iac vac line, the 3/8" one that comes out on top the throttle body capped off? if so thats your problem right there. that line should be running to your coldpipe. weld a bung on just before the throttle body and hook it up. ---
**Author:** ![SBC262TT](https://avatars.discourse-cdn.com/v4/letter/s/db5fbb/32.png) [@SBC262TT](https://forums.speedlife.net/u/SBC262TT)\ **Post date:** [October 10, 2005, 7:37pm UTC](https://forums.speedlife.net/t/problem-solved/89188/18 "2005-10-10T19:37:48Z")
> [@Alex](#): > > wait lemme see if i have this straight. you have the iac vac line, the 3/8" one that comes out on top the throttle body capped off? if so thats your problem right there. that line should be running to your coldpipe. weld a bung on just before the throttle body and hook it up. Dude, i owe you, that solved the idle problem, it still stalls out (more vacuum leaks?) but it’s 100x more driveable. Thanks.