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running rich and rough idle AFTER spark plug change

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Old Aug 6, 2012 | 09:13 PM
  #1  
cairyl09's Avatar
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From: Fayetteville, NC
NC running rich and rough idle AFTER spark plug change

Hello guys my name is Cairyl and I just recently bought a 1995 rx7. I live in fayetteville, nc and I was wondering if anyone knew an fd shop around the area and possibly some help. Here's my situation

I drove to fay from raleigh saturday (67 miles) and my fd was running great with no problem. i was advice to change the spark plugs by the previous owner (bought the car july 20). i changed the spark plugs (leaving the old wires in) at my buddy's place on base and after i changed it, the car started rough idling around 700 rpm and white fumes that smelled like gas was coming out of the exhaust. mind you, ive been driving the car for about 3 weeks straight everyday without any problems. i followed every procedure to change the plugs (knowing leading from trailing and also marking which wires went with which plugs). i dont know what i couldve possibly have done wrong. i probably knocked a hose or senor loose or something but the car was fine 2 hours before i changed the plugs.

now instead of keeping the new plugs back in, i changed it back to the old ones hoping the problem would stop. it didnt. the same problem. i drove the car home from where i changed the plugs (approx 5-7 miles) and the car was dying on stop signs and lights unless i gave it some gas. it was losing power on the way home, but drivable still. i parked the car behind my mother's bmw.

in the morning before church, i moved the car so my mother can use her car. it took me about 3-5 min to move the rx7. i didnt wait for it to warm up or anything bc i was afraid that it would cause more problems to the car. i moved the car about 15 feet away.

i came back from church to try to start it, and the car would not turn over unless i floored the accelerator and when it did start, it died as soon as the needle reached about 500 rpm. can anyone please help me out? especially if youre in the fayetteville, nc area. i will greatly appreciate it!! thank you

-cairyl
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Old Nov 5, 2012 | 03:44 PM
  #2  
txfdr2's Avatar
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I bet you fixed it by now, but probably something got knocked loose during the plug swap. Also, if you don't let the car warm up enough, it will flood.
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Old Nov 5, 2012 | 05:48 PM
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From: Smiths Falls.(near Ottawa!.Mapquest IT!)
You knock a vacuum hose loose?.Very common to do.
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Old Nov 6, 2012 | 01:29 PM
  #4  
cairyl09's Avatar
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From: Fayetteville, NC
txfdr2, I thought it was a loose hose. Not letting the car warm up was part of the problem. But the problem was that I screwed the plugs in too deep into the spark plug holes, causing it to be drenched in gas and unable to spark (at least that's the conclusion I can get bc after cleaning the new plugs with break cleaner and screwed it in enough, the car started. Viola. Thanks for the response).

Misterstyx69. I do think I have a vacuum hose loose bc my boost tops out at 7-9 psi. Either that or I have a faulty boost gauge needle. This is the part where college sucksi can't fiddle around with it. Nevertheless of the minor problems I have with my rx7, she still runs phenomenal.
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