Running Pig rich
I have a 99 TA wiht an A4. I have installed the Gernatelli MAF, MAF Translator, TTS long tube Headers and Whisper Air lid with K&N filter(not too many major mods). I have purchased Autotap sofware, and LS1 Edit. Ever sence the Header install I have been running pig rich. I have tryed to adjust maf tables and Injector pulse width tables to no avail. PCM still sets a insuffisant switching codes as well as slow responce codes(checked for vaccume leaks and exhaust leaks to find none). I have rear O2 simms installed and get codes for no activity for the post cat O2s.
Just reciently the car started to surge at idle and now has started to act like it is starving for fuel. It will act like a carb would when and injector pump is bad.
If there is anyone that can help with this issure it would be much appreciated. If anyone would like to look at my Edit file I would send it to ya...PLEASE HELP.....
<small>[ January 28, 2003, 01:33 PM: Message edited by: duce_71 ]</small>
<strong> ok...any help will be much appreciated..
I have a 99 TA wiht an A4. I have installed the Gernatelli MAF, MAF Translator, TTS long tube Headers and Whisper Air lid with K&N filter(not too many major mods). I have purchased Autotap sofware, and LS1 Edit. Ever sence the Header install I have been running pig rich. I have tryed to adjust maf tables and Injector pulse width tables to no avail. PCM still sets a insuffisant switching codes as well as slow responce codes(checked for vaccume leaks and exhaust leaks to find none). I have rear O2 simms installed and get codes for no activity for the post cat O2s.
Just reciently the car started to surge at idle and now has started to act like it is starving for fuel. It will act like a carb would when and injector pump is bad.
If there is anyone that can help with this issure it would be much appreciated. If anyone would like to look at my Edit file I would send it to ya...PLEASE HELP..... </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">SEND ME YOUR FILE... I'll try to help you out with some of it..
LS1EDIT@BELLSOUTH.NET
<strong> What do your O2 graphs look like? Your O2's could be bad, also there have been cases of faulty O2 simms, so that might be a problem also. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Its not the O2s I have replaced them both(precat) to still get the same codes...I only wish it were that simple..
Good luck.
Tommy <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
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<strong> Just a guess but, did you check to make sure you do not have any air leaks in the new exhaust system. I know that even a pin sinze hole before the first O2 sensor could screw things up. Did you use the OEM gaskets (that sees to work best)?
Good luck.
Tommy <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I have checked for air leaks at can't seam to locate any. I did reinstall the factory gaskets.
I may just remove the headers and scrap the idea of running headers if this is the result of running them.
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<strong> my car seems to be running really rich. And i've also lost about 50 miles to the tank. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I have just had this happen after a header install.. I have simms and the only code I'm throwing is a "high idle code" but I'm still loosing the mileage.. LS1Edit and EFILive should be here soon.. My a/f is at 11.7, hopefully I can get it up to about 12.6 or so...
Did any of you guys figure anything out??
<strong> Don't count on EFILive for an accurate A/F reading <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Do you mean that as in "the o2's on these cars are not sensitive enough to do the job" or do you mean that as "EFILive software is flaky and you should have gotten autotap?"
<img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
As for the running rich with headers.
What are your Lterms?
If you are absolutely positively sure that there are no exhaust leaks, or bad O2's on the vehicle, then there is an easy fix for this.




