2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Totally weird running problem which kills engine

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Old Jun 6, 2004 | 02:42 AM
  #1  
Digi7ech's Avatar
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I break Diff mounts
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From: Avondale, Arizona
Totally weird running problem which kills engine

OK
Today I got my car running.

I have set the BOV so it does not open(new engine doesn't like it releasing air yet).

Today I drove it 2 miles to my friends house. Keeping it under 3.5k the whole time.

It idles at 1500 rpms right now.

When I was driving back from his house the car just crapped out for no reason.

I tried to keep the engine running but giving it gas did nothing and the RPM'S dropped like a rock if I pulled the clutch out.

I towed it home and tow started it. I got it to idle at 2k.
I then tried to put it in reverse to get it in my driceway.

As soon as I blipped the throttle to coazx it to move(while slowly releasing clutch) it dropped RPMS again.
I kept it running for a split seconds then it crapped out.

Now the car doesn't want to run at all.
We towed it around and it won't hold idle or anything on it's own.

any thoughts?

Here is my guess.
Vac leak some where(although I checked for any popped off lines)
OR
There is no spark...... I tyhink this because I just noticed my front speakers are not playing so maybe a fuse went or something....
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Old Jun 6, 2004 | 02:46 AM
  #2  
Kenteth's Avatar
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From: Rapid City, SD
how do front speakers and ignition spark mix? It does sound like a vac leak, did you check the bov area?
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Old Jun 6, 2004 | 05:39 PM
  #3  
Digi7ech's Avatar
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Well I gave it a look today and found out the intercooler piping had popped off.
That's why It wouldn't run.

I suspect I might have hit a bit of boost or the NA hood pulled the pipe off.

So I bought a Vac and Boost guage today to see what I'm actually running.

I think the Autometer positive pressure only guess was fubar from the beginning.
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Old Jun 6, 2004 | 09:58 PM
  #4  
Digi7ech's Avatar
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I break Diff mounts
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From: Avondale, Arizona
update.

I put a full sweep vac gauge on there and tried to start it up. AND IT DID!!!!!!! The first time it has ever started on it's own using the starter!!!

So I was watching the vac gauge and it was pulling 15hg at 1500 idle.

I still haven't set the BOV but could hear when the turbo wanted to spool so I would slowly let off. I have not gone into positive pressure yet

So I drove it around m,y nieghborhood when the idle goes funky again! I see the vac guage reading 10hg and I knew it was leaking some where.

I was barely able to get it home and I could see it struggling to run so I shut it down before it died on it's own.

So I had a brief moment of victory today
It ran pretty well at that time too.

Now I have to find that ******* vac leak!
I don't even know where to look for it either
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