Stalling issue

whaleplane · Post by **whaleplane** » 18 May 2012, 10:47

Hey guys,

I have a 2006 xc90 2.5t that is becoming skizophrenic. It runs fine for a week then the cel comes on and then it goes off.... I checked the codes and it shows p0101 and p0170. I replaced the MAF sensor but I'm not sure where to go with the p0170. I checked the code and it says fuel trim bank. Is that the fuel pump? Logic would say yes because it will occasionally stall at idle but it runs fine under power. It also has been a little slugish out of a stop.

Any help is greatly appreciated.

Post by **JDS60R** » 18 May 2012, 11:07

Have it put on a scanner with live data. You most likely have an air leak somewhere. A pressure or leak test can be very helpful here. Check all air hoses for leaks after confirming the fuel trim is off.

whaleplane · Post by **whaleplane** » 21 May 2012, 08:15

Thanks for the help. I'm going to take it by this week. I tell you though it is the damnedest thing. It will run like new for 3 or 4 days then it will then it will start acting up. And then it goes away....

underthegun · Post by **underthegun** » 16 Jan 2018, 18:22

What did they do to fix this? I had MAF replaced a year ago, so I doubt it's not MAF. I ordered engine breather kit, which includes the oil trap, hoses and gaskets. I'm hoping that one of these parts is the culprit for air leakage. Ordered from eeuroparts and waiting for shipment to Korea via US military mail.