those mod chip on ebay, you can go to the local radioshack and get one diode only cost ya 35cents. get a case and sticker and bamn! $25 buck. all it does that sends one code that's IAT has cold air when it's not.
tried it on my truck once and pulled it out about 5min later for no use...

 

The 1997 A6 2.8L AFC engine has a coolant temperature sensor and an erg temperature sensor. Therefore, you should try to identify the part you thought was the IAT sensor.

 

well i ran into that dilemma in installation, so i emailed them and they said the mass airflow sensor, so the metal cylinder on the intake tube.. that brown wire with the red stripe is the culperate with the bright green one.. so i dont know what that could have done??

maybe now that we know it was linked to the mass airflow sensor we can figure more out?? i didnt think to mention that..

haha and yeah after the can didnt run i was curious and opened up the casing and it was indeed just a little diode.. i was kinda pisseed.. they said i can get full refund if i desire so i might be heading that way

 

For the 1997 A6 2.8L AFC OBDII US & Canada engine, at the MAF sensor the green wire goes to terminal A12 of the ECM, the brown red wire goes to ground at 46, and the black green wire may go to ground at 39. So, the green wire is for the MAF, and this green wire is shielded. The shielding goes to ground at 44. However, the Audi wiring diagrams on the Bentley CD are not always reliable. There may be omissions, small errors, etc.
You may have flooded the engine with fueland fouled the sparkplugs.

 

so basically i should just replace all the spark plugs?? Im fine with that if thats what you suggest, not expensive to do and they were probably due to be changed anyway..

ill pick some up this week sometime and hoepfully that will solve the problem..

after trying to start it so much then replacing the plugs, is there anything in particular i should do before i try starting it again with new plugs?? should i turn it over a few times with the plugs out to rid of any excess fluids in the cylinders or not??

 

ran out and bought bosch platinums for it.. put them in.. same thing.. turns over fine with no struggle, but doesnt even try to start, i tried it for about 5 seconds each time for about 6 times.. nothing..

still had fuel pressure and what not..

wait for vag com?? or perhaps another thing i could do??

 

and as for the wires going to fround 39, ECU, and what not.. what can i tell from that if it is all in fact correct?? should i reset ecu, disconnect a wire, anything along those lines?? or what?? Still have absolutely no idea what to do here..

 

I just re-read all the posts in this thread and I mentally blocked out the wise *** (AKA fun) posts to see if I could help with the problem. Assuming that the A6 ran OK before the addition and removal of the moduleI would do the simple things first. Remember life is simple - it is people that make it complicated.

1. Make sure the wires are attached correctly. Check the connections. Make sure you didn't mess up a connector.
2. Reinstall the module and see if that helps.

If those don't work , there is a good chance that you fried the ECU or messed up a sensor. Sorry to tell you that but if it was OK before, and bad after plugging and unplugging, and the wires are OK -- something else got messed up.

I don't know what to tell you after that other than invest in a VAGCom so you can diagnose the problemat home. It might not give you the answer but it is better than towing it to Autozone for a feebee scan or a dealer and spending a gazillion dollars or so.


Just my humble opinion with out a bunch of wisecracks..

 

Hehe you said cracks.....

 

I said wisecracks -- not butt cracks, sidewalk cracks,cracks in the head, or crack cocain and didn't elude to clevage orMarylandcrab cakes, so all is OK -- I think! [sm=yikesomg.gif]