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HELP! Too much fuel?

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Old Jul 14, 2005 | 11:56 PM
  #1  
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From: HOW FAST WAS I GOING OFFICER? Los Angeles Hating GM Dealership Service Dept.'s Since Sept. 2004
St. Jude Donor '04-'05-'06-'07
Default HELP! Too much fuel?

I have an '03 A4 with 40K, Blackwing and Corsa Exhaust. Everything else is pretty much stock.

No edit tune, OEM plugs/wires, etc

I had a diag. run today and it says I'm getting almost +10% fuel on accel.

What's the common cause? Remedy?

At warm start up and on decel. my idle dips below 500 and it seems to bog down for 2 seconds, but then everything goes back to normal.

I'm thinking about doing an off dyno edit, but I don't want to throw 250.00 into this and find out it's a fouled injector.

One guy suggested he thought I was getting too much air from the BW.

PLEASE ADD INPUT. TIA.

Dave Q.
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Old Jul 16, 2005 | 12:07 AM
  #2  
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turbolou
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From: Lake Forest CA
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Originally Posted by MyVetteDream
I have an '03 A4 with 40K, Blackwing and Corsa Exhaust. Everything else is pretty much stock.

No edit tune, OEM plugs/wires, etc

I had a diag. run today and it says I'm getting almost +10% fuel on accel.

What's the common cause? Remedy?

At warm start up and on decel. my idle dips below 500 and it seems to bog down for 2 seconds, but then everything goes back to normal.

I'm thinking about doing an off dyno edit, but I don't want to throw 250.00 into this and find out it's a fouled injector.

One guy suggested he thought I was getting too much air from the BW.

PLEASE ADD INPUT. TIA.

Dave Q.
Theres many safe guards incorporated in the stock program that are designed to ensure against damage by idiots. The only way to bypass this for max perf. is to get a tune by someone experienced.EFIlive online is a good source of info on your question.I myself am learning about this & haveing some sucsess. But 250.00 I would say is well worth the cost to get it right.
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Old Jul 16, 2005 | 12:38 AM
  #3  
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0Jeff @ TPE
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From: Las Vegas NV
St. Jude Donor '06 & '12
Default

Hey Dave,

Every time my coupler came loose or air got in in-between my MAF and my TB it did this. For instance if the coupler comes loose at the TB it will do this. As soon as I retightened mine down, it went away. I always knew when it was coming undone cause my idle would start to act funny.

Jeff
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Old Jul 16, 2005 | 09:36 AM
  #4  
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MyVetteDream
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From: HOW FAST WAS I GOING OFFICER? Los Angeles Hating GM Dealership Service Dept.'s Since Sept. 2004
St. Jude Donor '04-'05-'06-'07
Default

Thanks guys. I'll check the coupler and I have a tentative appt.on Tues with the tuner.

Thank you Lou & Jeff.

Dave

.

Last edited by MyVetteDream; Jul 16, 2005 at 11:20 AM.
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Old Jul 16, 2005 | 11:21 AM
  #5  
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MyVetteDream
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From: HOW FAST WAS I GOING OFFICER? Los Angeles Hating GM Dealership Service Dept.'s Since Sept. 2004
St. Jude Donor '04-'05-'06-'07
Default

UPDATE: Thanks Jeff! I think it did the trick at the TB! Anyway to keep this tightened??? It's almost just flopping around.
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