i just recently got it to idle, it idles low at around 450-500 rpm but it hasent died yet. But it does idle very lean (18+) and when accelerating from a stop, it takes a few seconds for the mixture to be right.

I unplugged my AEM piggyback completely, so the ECU has full control, i also repiped the intake and put a breather filter on the valve cover.

When the valve cover was plummed into the intake, the car would die especially if i was on the brakes (for example, no throttle, coming to a stop)

but now, hitting the brakes has no effect on the idle because the crankcase is constantly at atmospheric pressure...

I'm going to see if the piggyback can be retuned and maybe we can get the idle right this time around.

Please do not post anything negative, that is the reason i am hardly ever on here anymore... i have realized it was not the brightest idea to put an xB engine in my tC, but its done now so now is the part where i have to figure out how to get it run perfect..

By the way, this car runs very strong when it is not idling, it is actually my daily driver. The idle actually sounds very sexy

 

lol my idle when i come to a stop it sticks at 50 rpm and afr's go to 10.0 and run's very rich i can smell the gas. then idle goes up to 700-800 and afr's go to 17.0 and screen goes's blank. but after a half a min or so the afr's come back up into the 14's and now 15.s

was just looking to see if anyone had a simular problem and i seen this thread! keep me updated

 

I had similar issue with a basemap from fellow sl member, my setup is tt simple kit on 08 xb. It is the tune. I only get it when coming to a stop or when I tap the gas suddenly and let go in idle. I would go to like 17 then 10 and then back to 14.7-15 during idle.

 

ive got the same kit TT simple kit.. but my idle sticks to 500 and afr's go to 10 for like at least a min? or less then goes to 17 then blank for half a min or so. and sometimes even's back out to 14ish. idk ill post an update tuesday.

 

i got 08 tc