99 Lancaster (engine issues)

[Guest]

Hope I'm asking this in the right place.

Car history, complete engine rebuild and belts at 120k (not by me but have receipts) done by a country mechanic. Have done about 8,000k since rebuild. 2.5 auto (non VDC)

Car accelerates very slowly from standing start unless i plant foot, and then once I hit about 2200-2500 rpm i get a sudden boost. I also appear to be burning alot more juice in comparison to my 98 Outback (same motor i believe) that got stolen & written off 6 months ago. Comparing the off the line accel to my old outback, it's like my lancaster is towing a huge load, unless I plant which of course I am not wanting to do.

So I guess im looking for some advice on what to try, or steps to look at.

I had come across this. http://www.scoobypedia.co.uk/index.php/Knowledge/ECUReset would a ECU reset be worth trying. And should i be burning 91 95 or 98 in this car?

Thanks for any input!

[ReubenH]

Run on the very very minimum of 95. I'd recomend running on 98, but cause the car's not a turbo subie, you should be fine on 95.

When was last time the car was serviced? you should change oil every 10,000km's.

I'd recommend either shell 95, or mobil 98, run a tank of that, then reset the ECU. you may see some changes, you may not.

[Guest]

Have just run a tank of 95, will get some Mobil 98 and try a ECU reset. Engine was rebuilt under 10k ago, service was done when purchased.

I dont find it a big issue, mor of an annoyance.... and some days i just sit in my car and think.... I should really check that out or it will bit me on the behind one day.... so I'm trying to be proactive!

I will follow the ECU reset guide I found on here and see if it make a difference.

[Guest boostin]

Sounds like a knock sensor issue. Not necessarily a faulty knock sensor, but maybe something interfering with the signal. Common on 99 - 02 Subaru's.

[nickmcgill]

I had a similar problem on my B4, Even tho its turbo it still use to lag heaps then surge massively at the 2500 ish mark, Replaced the Airflow meter and made heaps of difference.

[Guest]

sorry to sound like an idiot.

But knock and airflow sensors. Is there any way I can check these myself, replace myself?

[Guest boostin]

Check no, replace yes.

[Guest]

Nice,

Now if I was to follow your sig and screw it up myself, where should/could I go for the instructions?

[Guest boostin]

Replacement instructions?

[jamesbissland]

hey..

did you ever get to the bottom of this? i know it was ages ago

another thing that would give you those symptoms is if the mechanic got a cam wheel a tooth out. esp if it all of a sudden started happening after the rebuild. seen that a couple times before, thats all