P0725...limp mode....(prospective purchase)

[c_W_j]

Greetings all...it's been a while since I posted here. I parted ways with my Gen2 GT wagon several years ago due to a series of unfortunate events...

I'm now looking at a 2005 GT 5EAT near me with 165,000 miles for $2500. The Facebook seller says it has a "new camshaft and new crank shaft sensors and needs a speed sensor. Good motor and transmission"; leaves out that it has a code P0725 and "goes into limp mode after it warms up".  He says the tach and speedo still work. There appears to be no P0700. Seller has no knowledge if it has had the 105k timing service or if HGs have ever been done.

I've found a few posts around the webz pointing to a bad speed sensor from the transmission on manual EJ257s (located under the intercooler), bad grounds and, in a worst case, a loose timing belt tensioner leading to a series of unfortunate mechanical failures.

So, does the 5EAT have a speed sensor besides the cam & crank sensors that would be indicated by a P0725? Anyone have a part number?

Does anyone/anywhere have a diagram showing all of the ground points?

Unfortunately, I have to be out of town for an extended period in about 10 days. I was thinking it was just a matter of digging in and getting to a sensor or two, but now it seems like it will involve a tow and a trip to the shop for a diagnostic (out here in the boonies, there aren't many indy Subie shops to help with stuff like this).

tia,

c w j

[m sprank]

The TCM is not receiving the RPM signal from the ECM.  Generally its a cam or crank angle sensor.  With the age of the cars it could be a bent pin, degradation of the wiring harness, grounds, sensors, etc.  There are many ground points throughout the car.  Search "vacation pix" links to the FSM are posted all over the forum.  Probably best to just add your own grounds from the battery (negative terminal) to the chassis and from the chassis to the engine.