Its a 96.

Right ok, is there any way i can test it if its faulty? Or would it just be a case of swap it with another one?

 

Did you try your old ECU as u mentioned before? What was the condition of your old plugs were they fouled?

 

Here ya go mate, did a quick search for ya.

https://www.scoobynet.com/general-te...nt-sensor.html

 

Not tried the ecu swap yet, been working a lot this week so won't do that till Saturday.

What do you mean by fould? They looked fine to me after 13 years of use ... they were just black, no damage or oil on them.




cheers mate

 

No worries.

 

I'm going to look at the water temp sensor in a bit guys, was wondering though i'm gonna find it and then be like "sooo what the hell do i do with it now"

I'm guessing there is no way of testing it and i don't have a spare one.

Are they expensive to buy?

 

don't know about testing, but heres one

Subaru impreza turbo classic engine water temp sensor on eBay (end time 28-Oct-09 12:57:24 GMT)

 

you look after me don't you bat

 

I try me best eh

 

Found the sensor and took it off and cleaned it up, didn't make a difference though but worth a try i guess.


Gonna buy that sensor, change it and see what happens.


If your scooby has starting issues from warm or cold, runs lumpy or uses excessive amounts of fuel then chances are this sensor is playing up. Even if you have no problem for the cost its worth changing at a major service interval to make sure fueling is spot on (with fue lprices rising daily)

The above sounds like mine, lumpy, drinking fuel and the cold starting. I hope this is it!!!

 

scooby 87, does your engine want to nearly stall when still warming up e.g. when coming to junctions, etc.? Do the symptoms get better, or go away, when up to temp?

If so, these are classic symptoms of a knack'd CTS - so hopefully you will indeed fix it with a new one (about £27-35).

 

No, it stalls without fail at first startup of the day, and then feels a bit lumpy/laggy untill properly warm. When its warm everything is fine though.

Once it has been started once it doesn't try to stall at junctions or anything though.

 

Yeah, the'y're still symptoms of a knacke'd CTS - just yours must be pretty badly gone, as it's actually stalling when cold, but okay when up to temp. I'm confident that a new one will sort it.

When you do change it, do an ECU reset bfore running the engine. It may just help in clearing any 'badly' learnt overfuelling from when the old CTS was playing up.

 

I hope your right Joz, thanks for the help !!

I should arrive tuesday or wednesday sooo i'll have it done when i get in from work and let you know if that cures the problem!

Man i hope it does, its really starting to bug me now!

 

There's nothing worse than non-obvious, hard to diagnose issues!

It makes you lose interest in yor car when it ain't running right.

 

Hmm didn't really go to plan, fitted the sensor now and went to do a ecu reset as per jollygreenmonster and it didn't start first time. But i'm thinking maybe this is because the ecu hasn't been reset yet?

Is there a way to reset the ECU without starting the engine? (apart from leaving the battery off for however long)


++ I did the ECU reset as per JGM and when the EML is supposed to flash to indicate the ECU has been reset it flashed an error code instead.

A error code of 43 which i can't seem to find? bugger!

 

Accelerator pedal switch apparently is what that code is .. hmm ??? Also i just read the ecu again and its not displaying any error codes?

Could this error code be caused by the reset process? It didn't happen on my first ever ECU reset, but that was on another ECU maybe there is a difference?

Sorry for all the questions i'm going on about now.

 

Bugger - should have done a fault code check, first.

I believe a knack'd TPS (throttle position sensor) can affect the running too. Bound to be that instead :

 

****! ... But saying that i did do one, read the ecu for faults i mean. Last weekend i read it when i was messing around out there.

And it doesn't have any error codes displayed now either?

LOL it continues.

 

Surely a tps fault would give cold and warm running problems?

 

same problem here. changed cts and still have the problem, cold starts are a mare. it tries to stall and then picks up and then tries to stall....when its warm its fine.
get a smell of petrol sometimes too when cold but this could just be cause of the fact its richer when cold. i have also tried cleaning out the idle control valve. others have suggested lambda. i have no fault codes.

 

First cold start with new CTS in place and ecu reset done and..... it was actually worse, but i'm guessing thats because its colder now.

Stalled on first key turn, on second start attempt revs were all over the place trying to stall, but eventually it got control.

Any ideas now guys

 

i feel for ya bud, i cant get to the bottom of it either. could the throttle switch on the pedal be involved i wonder, im thinking it must be used for engine start maybe.

 

I dunno, but i'm thinking its probably contributing to a few of my general running issues and hopefully the starting problem aswell.

I've seen on on ebay for £20

Would this be worth getting lads?

SUBARU IMPREZA WRX TURBO THROTTLE POSITION SENSOR on eBay (end time 05-Nov-09 11:56:11 GMT)

One of us has gotta crack this problem soon lol!

 

thats the tps, im thinking about the switch on the actual pedal its self in the foot well.
yes one of us has got to sort it! its a common problem too!

 

So its under the pedal, like a pressure switch?

There anyway i could test that?

 

seems just to be a on off switch to tell the ecu when there is no thottle input.

have you ever broken into the crank position sensor circuit?

 

No i haven't why?

Gonna do some thread searching today i think, see what i can find out if anything

 

I have no suggestions I'm afraid, but thought I'd let you know I'm in the same boat. The car (MY97) stalls on the first try, then the second try is generally ok after a bit of sputtering and me pressing the accelerator.

For me, it has suddenly gotten worse in the last couple of weeks, coinciding with the colder and damper weather. I had similar problems in the summer on cold damp mornings, and when I start it later in the day if it's had some sun on it, it is generally a lot better (i.e. doesn't stall).

I think it is moisture related.

 

yes, mine has just got worse with the cold weather.