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NorCal Community Chat Thread v. 3.0- 2010

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Old Aug 22, 2010 | 04:22 PM
  #451  
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hit it with a hammer, always fixes a problem!
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Old Aug 22, 2010 | 04:48 PM
  #452  
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Very funny ben, I checked and the ecu sends ground to the relay when key on engine off, but doesn't run when the engine is on...

Also found one of my wires from the ecu that goes to the OMP was disconnected at a wire splice, will be resoldering that. Several other wires were tapped for some reason, so I'll be soldering and wrapping all the wires hat have been tapped.
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Old Aug 22, 2010 | 05:33 PM
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Sorry for texting you I didn't know you had a limit on texts
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Old Aug 22, 2010 | 06:25 PM
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np, i just get **** if i go over since we're on a family phone plan.

just start going over the inputs to the ECU, it sounds like the ECU is confused and doesn't know that the engine isn't under a load and is turning off the circuit for some reason. ie, TPS out of adjustment, transmission gear selector inputs, RPM signal(should be fine though or i'd assume it wouldn't run), clutch switch, etc.

i don't remember the wiring harness being that bad but then again i wasn't really getting paid for the job so i wasn't going out of my way to make a showroom new car and it was 5 years ago now so who knows. anyways you can get alot of info from the pins leading to and from the ECU, codes pulled from the diagnostic connector/CEL and wires off the engine harness. just takes time to sort through the soup and that soup was pretty messy.
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Old Aug 22, 2010 | 07:22 PM
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Here is what the harness at the ECU looks like. I have repaired all but 2 of the splices so far. But I got tired of contorting my body to solder under the dash.

Here is what it looked like before.

Attached Thumbnails NorCal Community Chat Thread v. 3.0- 2010-wire-taps-ecu.jpg  
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Old Aug 22, 2010 | 07:35 PM
  #456  
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gotta love butt connectors
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Old Aug 22, 2010 | 10:30 PM
  #457  
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Not really cuz now my BUTT hurts from sitting on the threshold. SUCKS!
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Old Aug 22, 2010 | 11:57 PM
  #458  
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I have some FD harnesses (harnessii?) if you need anything. Sounds like you're just fixing a few wires though so maybe you're good. Wow, thanks for reminding me I have a plastic tub full o' burnt up FD harness. I need to recycle that junk or something, maybe part it out. One of these days...
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Old Aug 22, 2010 | 11:59 PM
  #459  
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Do you have a battery tray by chance?
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Old Aug 23, 2010 | 12:01 AM
  #460  
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Underhood insulation? Cowl seal, the one under the hood that sits on top of the firewall.
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Old Aug 24, 2010 | 12:07 AM
  #461  
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That's a negative on all those. There is a batt. tray in the project FD but it's cut slightly due to the wider radiator and I need it for the battery, heh. The driver FD doesn't even have a tray -- battery is relocated. I can try to make a list of all the spares I have, there's not much in the way of body/interior parts though.
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Old Aug 26, 2010 | 11:16 PM
  #462  
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I need the under dash panel on the driver side.

Well I got my split air pipe on, for some reason my ecu isn't triggering my air pump to kick on. It activates the clutch when the key is in the on position but when the car is running it won't trigger. Going to have to do some more research. There has been one time where it seemed like it tried to come on, cold start up. It will run for a few seconds but then shut off again.
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Old Aug 27, 2010 | 11:36 PM
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Well sweet I got the air pump to work now. Turns out the TPS was installed incorrectly so the ECU had no input for throttle. Took it out and reinstalled it, adjusted it and tweaked the idle. The car actually idles like normal now at like 850 rpm, no brap brap brap.

Problem is my air pump sounds like a freakin Harley when it runs. So I think I may need a different one. :-/
I will post a video as soon as it is done uploading.
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Old Aug 27, 2010 | 11:47 PM
  #464  
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http://www.youtube.com/watch?v=JMLdU1k3gh8
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Old Aug 28, 2010 | 03:11 PM
  #465  
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Nader is suck a biter. I have been rockin the SE37K's for a couple years Of course my car fired up for the first time a couple weeks ago.


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Old Aug 28, 2010 | 05:36 PM
  #466  
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Haha Casey! Nice to see ya. Your FD is looking good! Pics of the LS2 please!!!!! Video if ya got it. Or you can come visit :-)

I got another FD :-)
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Old Aug 28, 2010 | 10:23 PM
  #467  
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I saw that. I wil try to get a start up video up tomorrow.
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Old Aug 29, 2010 | 12:28 PM
  #468  
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Pics and Video! NOWWWWWW!
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Old Aug 29, 2010 | 12:58 PM
  #469  
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you can try running a hose from the smog pump down under the air filters and attach a filter to the inlet on your new hose. the smog pump is pretty loud when it doesn't have the stock airbox to muffle the noise it produces, a different one may be quieter but will still make the same noises.
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Old Aug 29, 2010 | 01:02 PM
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But it doesn't pull suction constantly, it sucks and then blows (like Preston)....
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Old Aug 29, 2010 | 01:08 PM
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Going to remove the outlet pipe to see if it is pumping properly and also to see if there is exhaust gas being pushed back into the pump somehow.
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Old Aug 29, 2010 | 01:36 PM
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could be the diaphragm behind the ACV missing, most of the work disassembling and painting the throttle body and manifolds was done not by me so i didn't double check it. even with the diaphragm missing though this sounds odd, could just be some stuck vanes in the pump itself from sitting or some knucklehead taking it apart and messing with it and not putting everything back in place properly or at all. i've never disassembled a smog pump, mainly because there's never been a need to, they don't fail often at all(in fact i've never seen a bad one yet, just some weak ones that still did the job and some noisy ones from sitting that get quieter as they are worked back in). not sure what i'd suggest, it's not a good idea to spray some lubricant into the pump but if it's not going to fix itself with a little time then **** it.
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Old Aug 29, 2010 | 02:02 PM
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Diaphragm behind the ACV? Can you be a little more specific, picture maybe?

Maybe I will let it run some more and see if it quiets down.
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Old Aug 29, 2010 | 02:27 PM
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if you pull off the ACV(sits on the inside of the LIM above the rats nest with 2 black electrical connectors and 1 white) there is a one way circular diaphragm that sits in the lower intake manifold. i don't have any FSMs loaded onto this machine to try and get a picture of what it looks like or where it goes, just describing it. you can only really install it one way so it's self explanatory, cone on the diaphragm faces the LIM.
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Old Aug 29, 2010 | 04:42 PM
  #475  
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I took the outlet hose off of the air pump and started the car, it was MUCH quieter, barely noticeable over engine noise. If I put my thumb over the pipe it got louder the more I closed up the hole. So basically the noise is the pump creating pressure and then apparently it has nowhere to go? The air from the pump should flow to the exhaust, into the manifold, or out the dump tube, right? Don't think it should be getting "backed up".

I'm thinking my ACV may not be sending the air anywhere. Not sure how to figure that out though.
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