Stumped.

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Old Sep 3, 2011 | 10:45 AM
  #1  
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Default Stumped.

So last night after finally getting my car mostly put back together, I finally got to drive it home. Ran great til I got about 3 blocks from my house, then I noticed my oil pressure gauge was reading 0. Then my oil warning light came on and I immediately shut the car off and coasted close enough to my house to push it in the driveway. I popped the hood and the nylon tube that ran to the fitting on the T on the back of the block came off, so oil got sprayed everywhere. No problem, I thought, can't have done any real damage. It wasn't knocking or anything, and there was still about a quart in the pan. So this morning I went and found the little block off plug for the T and swapped it out, filled it up with oil and expected it to be good to go. Go to start it, oil light goes off immediately but then it wouldn't idle, started sputtering/missing and running super rich. I've checked vacuum lines, plugs, and swapped out my chip with a known good one. Setup is: Stock F22B2, T3/T4 57 trim, DSM 440s, Walbro 255, Chipped P75/crome, plugs are one step colder and gapped at .30.

Any ideas?
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Old Sep 3, 2011 | 12:07 PM
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Default Re: Stumped.

That doesnt sound to good, pull the filter and dump the oil check for debris in the oil. might have taken out some mains and its difficult for the engine to turn over
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Old Sep 3, 2011 | 12:20 PM
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Default Re: Stumped.

I relieved the fuel in the fuel rail and got it to start, but it won't hold an idle with the PCV hooked up. If the car is running and I hook it up, it instantly shuts off. Sounds like it's missing too. Plugs are clean. And I did pull the filter, it was clean.

Edit: There's no smoke or noticeable blowby.
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Old Sep 3, 2011 | 12:33 PM
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Default Re: Stumped.

have you checked your turbo to see if it has seized? sucks if it has.
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Old Sep 3, 2011 | 12:39 PM
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Default Re: Stumped.

If oil sprayed everywhere make sure you clean out all your electrical connectors really good with brake cleaner or electrical cleaner. I bet oil is in a plug somewhere causing a messed up signal going to your ecu.
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Old Sep 3, 2011 | 12:54 PM
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Default Re: Stumped.

Turbo is fine. And I cleaned the CRAP out of the back of the block this morning, and anything I could find that had oil on it. Also, after letting it run for awhile, I pulled the plugs again. Whole set had dry, black stuff on them(carbon)?
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Old Sep 3, 2011 | 03:36 PM
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Default Re: Stumped.

440's are on the small side for that set up..

reset ecu with the normal tuned chip for your set up?
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Old Sep 3, 2011 | 06:05 PM
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Default Re: Stumped.

I tried that, no change. I'll mess with it some more tomorrow.
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Old Sep 3, 2011 | 08:24 PM
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Default Re: Stumped.

How's ur vacuum on the boost gauge @ idle? Assuming your ecu have the right a/f ratio tuned for your set-up, I would bet it on a boost leak. If it's not a boost leak, make sure your ecu is compensating correctly for the extra fuel.
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Old Sep 4, 2011 | 09:05 AM
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Default Re: Stumped.

Originally Posted by Aradin
I relieved the fuel in the fuel rail and got it to start, but it won't hold an idle with the PCV hooked up. If the car is running and I hook it up, it instantly shuts off. Sounds like it's missing too. Plugs are clean. And I did pull the filter, it was clean.

Edit: There's no smoke or noticeable blowby.
Are you still running a PCV valve? is it stuck open? sounds like the PCV gasses are contaminating the incomming air at idle and causing it to stall? Because this is directly related to your stalling issue, it's the best place to start looking and working backwards.
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Old Sep 9, 2011 | 09:27 AM
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Default Re: Stumped.

So after stepping away from it for a few days, and some brainstorming. I discovered it was an EGR problem. I unplugged the vacuum line that goes to the EGR and it started up like stock and it runs great again. Quick question, is it going to hurt anything if I drive it around like this for a little?
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Old Sep 9, 2011 | 10:24 AM
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Default Re: Stumped.

Originally Posted by Aradin
So after stepping away from it for a few days, and some brainstorming. I discovered it was an EGR problem. I unplugged the vacuum line that goes to the EGR and it started up like stock and it runs great again. Quick question, is it going to hurt anything if I drive it around like this for a little?
So it was the EGR valve that malfunctioned and was allowing exhaust gasses to contaminate your intake air during idle when it's not supposed to. It won't hurt anything other than emissions, just make sure you have the vacuum line you pulled off blocked.
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Old Sep 9, 2011 | 10:33 AM
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Default Re: Stumped.

Indeed. Thanks.
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