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Power FC Why is my car running like crap now?

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Old Jul 5, 2007 | 12:05 AM
  #1  
RX7 NOOB's Avatar
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From: lena, Illinois
Unhappy Why is my car running like crap now?

So I installed new turbos, got rid of the a/p, and a pfc with a new map from rx7store.net. It started great and I gave it 20 minutes to idle and the car ran perfect, my boost problem was finally solved. but I was getting a bouncing idle often. So I searched and decided to adjust the air bleed screw. I turned it clockwise untill it was all the way in and then backed it out a 1/2 turn. But now it starts VERY sluggish, the engine shakes, the exhaust smokes a ton of white and black smoke, and sounds like a f'ing machine gun. I backed the screw out to where it was and it did'nt help at all. and I tried putting the old ecu back in but that didnt help either

This really has me stumped and i'm kind of scared since I'm my only fd mechanic
where I live
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Old Jul 5, 2007 | 12:31 AM
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set the idle screw out (do a search) and do the pfc idle learning process again (did you do it the first time?)
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Old Jul 5, 2007 | 11:33 AM
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I reset the pfc and tried that but no luck, I gave it 20 minutes to idle and it didnt improve at all. the gas guage is going down really fast! something is seriously wrong, could I have screwed something up when I started it with the elbow off?
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Old Jul 5, 2007 | 11:37 AM
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rynberg's Avatar
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My guess is you knocked off or failed to replace the MAP sensor line or you tweaked your TPS.
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Old Jul 5, 2007 | 11:50 AM
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is the tps the screw at the top of the throttle? I did mess with that one, where should it be adjusted? And what is the map sensor line?
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Old Jul 5, 2007 | 02:16 PM
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From: In A Disfunctional World
Do us all a favor and download the manual from the 3rd Gen Forum.
Then study section "F"..
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Old Jul 6, 2007 | 07:14 AM
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Sounds like you knocked the map sensor off.
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Old Jul 6, 2007 | 10:29 AM
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BINGO The hose had popped off under the map sensor. I guess I never looked there since it only says boost sensor. I fired her up and I heard some something loud that sounded like metal clashing against metal, under the hood. It still has a little bit of a different exhaust note at idle, and it hesitates when I give it gas.
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Old Jul 6, 2007 | 10:55 AM
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How did changing new turbos and removing the AP get over to the Map Sensor?
Maybe you did more than you told us.
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Old Jul 6, 2007 | 02:10 PM
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I must have knocked it off when I removed the elbow to adust the air bleedoff screw.
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