2.5 outback. New plugs, filters, cleaned injectors. The thing runs great when it does start, but takes about twice as much starter time as you'd expect (at least) starts right up if I cycle the key a couple of times. Any ideas?

Coolant temp sensor

 

If the ECU doesn't know what temp the engine is at, it has a hard time getting the fuel ratio optimum for starting.

 

If it starts cold but not when warm.....the CTS is stuck on a "low temp" reading (2-3Kohms)

 

If it has a hard time in the morning, but starts fine after warm and restarted, then it is stuck at a "high temp" reading (300-1000 ohms)

 

It probably is giving an inaccurate reading....but not so far off to cause it to throw a code.

 

you can try testing the resistance of the CTS cold, and then hot, and make sure it's going through the proper range.

 

Hard to get test leads in there.......unless you have an old harness to chop the CTS connector off and make a test harness.

but basically i should just get a new sensor? It's my gf's car, i keep telling her she's gotta throw a little bit of $ at it to get where she wants it anyway.

but basically i should just get a new sensor? It's my gf's car, i keep telling her she's gotta throw a little bit of $ at it to get where she wants it anyway.

 

I would test first. but it isn't too expensive to replace so........

 

I should say, after rereading, it could also be a fuel issue since cycling the key will run the fuel pump a second each time. Perhaps you've got an injector leaking and depressurizing the fuel rail when it sits?

 

I'd still check CTS first.