nelstomlinson

I have a 2001 Impreza with an automatic and a running 2.2L engine, and a '99 Legacy outback with a 5 speed and a blown engine (2.5L, I'm pretty sure). I would like to swap engines to make a running Legacy with a 2.2L and a 5 speed. What sort of troubles am I likely to run into?

So, replacing the MAF sensor and clearing the error codes solved all the problems. The P0106 has returned, intermittently, but the car runs fine, and the mileage has improved a bit. Thanks for all the help!

Thanks, all. I wish we had a junk yard nearby, but if we do I haven't found it. The local parts store will get a new one down here tomorrow from the big city, and I'll let you all know how it works out. I'll hose it down with the MAF cleaner first; that's a good tip.

I have unplugged and re-plugged the MAF connector. Everything looks bright and shiny inside the connectors. I hadn't known that the P0106 might indicate a vacuum problem, so I'll check over those hoses. The MAF is expensive, but at least it's easy to get at. It's below zero here, so easy to get at is a big deal. Thanks!

Hello, my '96 Legacy has started running rough, dies at idle, loses power. It smooths out a little at higher RPMs, above 2000 or so. The error codes I am reading are: P0100, P0303, P0304, P0106, P0170, P0106 again. I'm thinking that these all point to a MAF sensor problem. Smoothing out at higher RPM suggests that I'm getting decent fuel pressure, and the MAF and fuel trim codes (100 and 170) together might explain the cylinder 3 and 4 miss codes (303 and 304). Am I going wrong here? Is it reasonable to replace the MAF as a starting point, or what would you recommend? I have a code reader but no scan tool.