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Running rich, car bought at sea level and now is at 7000+ feet?

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Old 10-03-2007, 10:14 AM
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Default Running rich, car bought at sea level and now is at 7000+ feet?

Also the air fuel meter is going from lean to rich like its keepin a beat, which makes my idle a bit unstable at times. I was wondering if I need new 02's or what to remedy this problem.... help?
Old 10-03-2007, 11:33 AM
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Details on your setup (complete) are imperative.
Old 10-03-2007, 11:41 AM
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Default Its a 2000 1.8tqms. 3" EvoMS intake. K04. Orig o2's. No leaks as far as we know.

MAF is clean. TB is clean. Plugs new. Coils fine. He doesnt have VAG-COM locally avaiable. Trying to line something up.

Car also has:
Custom Exhaust 2.5" w/DP
AFR Meter
Greddy Spec-B Boost Gauge/Turbo Timer Combo
EvoMS DV
Old 10-03-2007, 12:20 PM
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What Programming? 4bar FPR or Adjustable? Injectors? OEM Maf?
Old 10-03-2007, 12:38 PM
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Default 5 bar. Stock inj. 3" Jetta MAF. GIAC K04 Program. I cant think of anything else. *HELP*

Sorry I didnt put it all in 1st time. Busy day.
Old 10-03-2007, 01:01 PM
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why 3" Jetta MAF, software is for stock correct?
Old 10-03-2007, 01:06 PM
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GMG tuned GIAC software for 3" MAF. Thats only mod to programming though.
Old 10-03-2007, 01:17 PM
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Default spark plugs?

edit, saw they were new, but is the gap correct?
Old 10-03-2007, 01:23 PM
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For sure. Now I doubt myself though. I'll 2x check. What are effects of incorrect gapping?
Old 10-03-2007, 01:29 PM
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Default What file do you have?

Because even the GIAC J31 chip for the 2000 uses the stock housing and sensor since the K04 cant flow enough to max it out.


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