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ONE QUESTIOn after TREX

Old Apr 3, 2004 | 12:06 PM
  #1  
2001zz's Avatar
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Default ONE QUESTIOn after TREX

I just drove the car and finally got on it. ON stock tuning ths thing pullscrazy at like 5200 or so.
My question is after i get on it will like buck and miss for a few minutes? Any ideas. I did get a new code after it started this 121 tps something. any ideas? will this be straightened out at tuning oris something wrong?
thanks
my car wont even shift at wot becasue it revs so quick at hits the limiter
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Old Apr 3, 2004 | 12:35 PM
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I also took the egr off the car and got code 405. Will this affect the running and make it do as described?
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Old Apr 3, 2004 | 01:45 PM
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The PO121 is a pretty normal code to set with big, aftermarket cams.

The PO405 doesn't effect how the car runs in the least.

From your description, it sounds like the car needs tuning. My car had similar symptoms before I tuned it. MUCH better now.
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Old Apr 3, 2004 | 03:05 PM
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im getting tuned tommorrow.
i mean after i get on it, it misses and bucks like its going to die.
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Old Apr 3, 2004 | 04:58 PM
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Originally Posted by 2001zz
after i get on it, it misses and bucks like its going to die.
My cam used to do that too before tuning. It went away after tuning though.

Last edited by 01_SuperSlow; Apr 3, 2004 at 08:06 PM.
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Old Apr 3, 2004 | 09:03 PM
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Im thinking about getting the same cam, but does anyone have good deals on mail order tunes with a fast turn around and what is the going rate for something like this? Thanx Chris
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Old Apr 3, 2004 | 10:36 PM
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Definatly get it tuned. I was able to hear Jasons car at idle and it idled better with the trex than my untuned tr224 112.
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