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Car idles poorly/stalls after motordyne spacer install.

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Old 06-06-2010 | 06:29 PM
acelesson's Avatar
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Car idles poorly/stalls after motordyne spacer install.

Help! Has this happened to any of you?? How do I fix?
 
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Old 06-06-2010 | 06:31 PM
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Air leak somewhere.
 
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Old 06-06-2010 | 06:48 PM
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Def air leak. Get a can of "starting fluid". Give littel short blasts around the bolts, gaskets and any other hose that is connected to it. If you hear the idle go up at all, you found your leak.

I'll bet that you just left off a vac hose in the back somewhere.
 
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Old 06-06-2010 | 06:48 PM
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Ok from where? I'm wondering if I have my hoses connected to to right spots?
 
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Old 06-06-2010 | 07:04 PM
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Am I supposed to put that supplied silicone RTV on the spacer??
 
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Old 06-06-2010 | 07:05 PM
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There are several vacumm hoses on the back and left side (if I remember right) of the plenum. If you torqed the bolts evenly, I don't think you will have a leak in the gaskets.
 
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Old 06-06-2010 | 07:08 PM
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Make sure the oil filler collar isnt pinched between the spacer and the plenum. Happens all the time.
 
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Old 06-06-2010 | 08:07 PM
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Originally Posted by SxExCx
Make sure the oil filler collar isnt pinched between the spacer and the plenum. Happens all the time.
Haha! Thats what happened to me too!
 
  #9  
Old 06-06-2010 | 09:12 PM
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Found it. Stupid gold bracket that holds a wiring harness. It was wedged under the spacer. Hissing is 98% gone. I siliconed the area up and am now letting it cure
 
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Old 06-06-2010 | 09:17 PM
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Congrats! Make sure you re check the torque on the rest of the bolts!
 
  #11  
Old 06-06-2010 | 10:53 PM
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Hey thanks man! Wow, I wasnt anticipating it would take as long as it did...took wayy too long to find what should have been obvious. Looking back on it I feel like Im an idiot...haha. Oh well, it was a good learning experience and I know that much more about our cars. I disconnected the battery for about an hour to reset the ECU, how long before I feel the power gains? Does the ECU need to relearn first?
 
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Old 06-06-2010 | 11:13 PM
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Depending on your year, you should notice gains right away. Your ECU will need around 50 miles to fully learn with as many stops and starts as possible.
I've read that whenever you come to a stop light, turn off the car, then restart. Helps it learn faster. Listen for knocking/pinging!
If your running the rev up motor, there isn't as much of a gain with just the spacer.
 
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Old 06-06-2010 | 11:15 PM
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I have a non rev up....2004
 
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Old 06-07-2010 | 12:26 AM
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You should notice a nice gain then!
 
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