I am doing an a6 to a z6 swap for now I am using the obdo harness, injectors,disturber,and ecu. It is running but it idles horrible and revs fine until the check engine light comes on and idles at 1500 and die out when you give it the gas. the fast idle sensor vacuum lines have no where to hook to and i have one line that I don't know where it comes from but it is constantly sucking vacuum. There is a sensor on the back of the throttle body and on the top I have a plug on the harness that plug on to both of them but the back one is broken is that the sensor that I have to plug up? if any one knows what is wrong please help.

 

Well you need to fix all the vac leaks and CEL, tell us CEL you have

The sensor on the back of the TB is the TPS you need to get a new one if its broke and plug it in, that will help you problem a lot, might not fix it completely

The sensor on to is where the OBD1 motors have the map sensor, on OBD0 its mounted on the firewall, need someone to confirm but I believe you can use either one, I'd use the one on the TB...

Get some pics of your engine bay and what you are talking about, then you will get some more help

 

just plug the vacs up and the tps I don't have another plug to plug it and the map sensor up and this might be really ignorant but is CEL the number on the ecu?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jaycrxsi &raquo;</TD></TR><TR><TD CLASS="quote">just plug the vacs up and the tps I don't have another plug to plug it and the map sensor up and this might be really ignorant but is CEL the number on the ecu?</TD></TR></TABLE>

its ok to ask questions man. ur map has to be hooked up to a vacum line so it can read preperly, CEL =check engine light. when ur ecu has codes of a system malfuction it will store it in the memory and give u a CEL. look those codes.