EJ25 over run.

[KarlT]

Hi All.
I've got a SOHC 2.5 N/A engine in my T3. Its all running sweet except an really annoying over-run.
Driving along normally, coming to a stop, knock out of 2nd into neutral & revs will stay up around 1500rpm for about 4/5 seconds before dropping down to nearer 700rpm. I'd like/want them to drop immediately if possible.
Van went for MOT today. Passed with flying colours, one adversary for small windscreen-chip. Marvellous!!
While I was there, got the garage guys to but their code-fault-reader on it....... No Fault codes, No historic fault codes! Even more marvellous!!
While they were connected up, had them look at Throttle/neutral setting...... Apparently it was set to 'On'.
Is this causing the over-run? How do I fix/change it?
Cheers my engine Yoda's!!

[syncroandy]

Hi Karl, did you check your neutral position switch signal to the ECU as I suggested ?

[KarlT]

Hi Andy, Bear with me, had a couple of beers & bit of a light weight these days!!
Is that not this....... "While they were connected up, had them look at Throttle/neutral setting...... Apparently it was set to 'On'."

Sorry if I'm mistaken & that's not what you meant.

[syncroandy]

See my PM of the 3rd.

[KarlT]

Okay had alook at ecu.
Looked at orange connector, couldn't tell which was pin 26, couldn't see any numbers.
Only one black/green wire I could see though. It was connected to a bigger black cable and this ran all the way to the back of the speedo. Speed pick-up?
I tried disconnecting it anyway, couldn't detect any difference in start up but I wasn't driving it. SORN'd
T3 speedo/cable isn't in the best condition, sometimes sticks at 10mph & bounces a lot at lower speeds, could this cause an issue?
Wrote down ecu number, but now can't find bit of paper, will go double check!

[KarlT]

Ok ECU number is.......

W7
22611 AG100
A18 000 DIY.

Drove up & down road with green/black wire to speedo disconnected. Again hard to tell with such short journeys but revs did seem to drop quicker.

[KarlT]

What's this?......

[KarlT]

Is this a a oil pressure sender? What would I need to connect it to a gauge?

[Aidan]

you need to find out what make model it is and find a compatible gauge and wire it up - if it's a vdo then the id will be stamped on to it , bunch of numbers which if put into google will get you the spec, plenty of cheap gauges on ebay - check with axeman if he's got any left from the group buy, they are VDO 5 bar ones, if you have a 5 bar sender job's a good'un

[silverbullet]

What's this?......

The grey plug is for the ecu temp sender, the little brass one is for temp gauge. This much I can recall, before I turn my back on the ba$t4rd Subaru wiring loom and ecu forever!

[KarlT]

Cheers guys, checked oil sender, no part or ID numbers on it at all. Hmmmmmmm