johned

Any joy yet?.

Crowman

Turbo freak, im only uckfield, very near you.
Drop me a line and arrange to bring your P1 around and we will take a good look.
I had the same issues as you and i went through many of the parts you have tried, it turned out to be a split intake hose onto the turbo. it was impossible to see until i removed the inlet manifold, as the split was underneath the jubilee clip on the underside. I fitted new OE intake pipe £122 from subaru and the car has been perfect since.
Car is P1 by the way.
You are welcome to try any bits from mine and vica versa we can swap suuspect bits onto mine to see if fault moves.

TurboFreak

Wrong Lambda sensor arrived Friday, just about to order the correct one now.
Very interesting to hear about your problem and it being the turbo hose, a mechanic who I had try and check my Lambda said he thought (gut feeling) the problem was a leaking hose.
Thanks very much for offer of help and Uckfield is only a 20-30 minute drive from me so might be getting in touch, problem at the moment is would not even want to drive it the 20 minutes
Car is in a lock up under cover so I think I need to check that Turbo Hose before buying any more parts.
I just thought if a hose had split it would run bad all the time, this car runs perfect for 10 minutes then appears to run on 2/3 cylinders which is why I suspected more electrical problem?

Crowman

Hi
Mine had intermitant poor idle, hunting and was worse when hot.
It never felt like the car was missing or firing on 3 , so it seems you may well have a diferent issue.
Just shout and if you like i will pop over with mine.

TurboFreak

I will check the hose, car came back from the engine change with the poor idle problem exactly as yoyu describe, when car collected it was obviously cold but when I got it home and hot I found it had really eratic / poor idle.
The poor running / misfire issue is probaly another problem.
I have owned the scooby now for about 10 months, 6 months it's been off the road, what a waste of tax

TurboFreak

Fitted new Lambda sensor yesterday,£80 and no difference

Will check the Turbo hose next.

johned

Check all hoses are ok and tight as when things warm up they might be expanding and are more flexible allowing an air leak.

wrx271

iTrader: (1)

Still haven't sorted this poor p1

please call dynamix or jgm they will find your problem and you wont have to keep throwing parts on her.

TurboFreak

I will check hoses but it runs lumpy from start now, not just when warm.

When I first got car back after engine change it drove fine, pulled well with no issues other then the eratic idle when hot, which did seem like an air leak but nothing was found.

TurboFreak

Where are these companies based, I would not drive car any sort of distance due the running problem so have cost of transporter to consider if I don't get a good local mechanic to sort it out.
But having said that I am getting so desperate now I just want it sorted

wrx271

iTrader: (1)

They are both mobile

TurboFreak

Any idea what area they cover and any chance you have contact number for these guys? thasnks.

dynamix

iTrader: (3)

Simon and I are both mobile and you are halfway between us i think.

my contact details are below

wrx271

iTrader: (1)

there you go easy as that.

johned

Any joy yet?.

TurboFreak

I drove it the 5 miles to a experienced qualified mechanic, he doesn't know if he can sort it as he confirmed he would have done all the things I have in a logical process of elimination.
I have asked him to check all hoses, especially the Turbo hose which from replies the hose can split behind the clip.
Car drove fine yesterday when I took it over to him, but took it easy and didn't use turbo, when I did go to floor it there was just a massive flat spot, had to back off straight away.

If he doesn't find anything then it's contacting a specialist scooby mechanic, probably one of the two mentioned in replies on here and P1 owners club.

johned

Good luck.

wrx271

iTrader: (1)

[QUOTE=TurboFreak;11351876]I drove it the 5 miles to a experienced qualified mechanic, he doesn't know if he can sort it as he confirmed he would have done all the things I have in a logical process of elimination.
I have asked him to check all hoses, especially the Turbo hose which from replies the hose can split behind the clip.
Car drove fine yesterday when I took it over to him, but took it easy and didn't use turbo, when I did go to floor it there was just a massive flat spot, had to back off straight away.



so you took it to a proper garage who was just going to throw bits on it like you did that sounds like a proper good garage that does I give up with this poor p1.

TurboFreak

so you took it to a proper garage who was just going to throw bits on it like you did that sounds like a proper good garage that does I give up with this poor p1.[/quote]

Don't understand this comment

All I said was that he understood the logical process I have gone through to sort car out, he is an experienced highly regarded local fully qualified mechanic, I do not understand why you have a problem.
I never said he would have 'thrown bits on it', I would hope he would have found the problem without fitting then tbh.

Jolly Green Monster

iTrader: (4)

Have you fitted a genuine new maf anf reset the ecu afterward yet?

TurboFreak

I did fit a genuine MAF from scooby.

I have done a reset after clearing fault codes, connecting green and black block connections and holdong throttle half way?

Is there something else that needs to be done?

Jolly Green Monster

iTrader: (4)

a new one from subaru?

split in inlet pipe?

mellinator2k

What a nightmare you are having. Keep at it, sure you will crack it eventually.
Daft question but does the p1 engine in the car have the same internals as the previous one?
I would be replacing the rubber hoses for turbo just in case, good luck.

TurboFreak

Yes new MAF from Subaru, and have asked the mechanic to check all hoses, especially the Turbo hose as they are known to split under the clip.
I had a look for it and couldn't even see it, let alone check it.

Just to recap, new parts fitted, MAF, COILPACK, COMPETITION LEADS, PLUGS, LAMBDA SENSOR.

TurboFreak

I do not know exactly what internals the replacement engine has, it had big injectors and turbo, also a fuel pressure kit but couldn't afford to buy the lot so had just the basic long engine. The guy sold the injectors and turbo etc seperately.

Only thing different is it has riser blocks on the manifold.
But remember apart from hunting when on hot idle the replacement engine run fine when first fitted.

I had new cambelt kit, water pump and uprated fuel pump fitted to the replacement engine.

TurboFreak

Latest... all hoses checked, including Turbo and no leaks found.
Mechanic (Andy) found connections onto injectors looked dirty/poor condition so cleaned.
No fault codes showing since I repalced MAF etc, but he had car connected to computer and it showed crank sensor was failing, but car was running fine?
Andy has road tested it for 10 miles and said it went like *hit of a shoval and didn't miss a beat, but it has done that before, then when you think it's all ok it starts pulling back again. He is not totally convinced it's sorted purely because of the eratic nature of the problem.
Anyway pick it up tomorrow and will see what happens......

Kwik

iTrader: (10)

Has it been mapped at all since the new engine was fitted?. I got your PM but forgot to reply. I'm not a mechanic but local to you and have had plenty of running issues of my own lately so have had to check a lot of what you have also. I'm also a mile from Jap Performance, which are a breakers of scoobs and have pretty much everything in stock and know Impreza's pretty well.
Have you checked your fuel lines are connected up correctly, I mean in the right order?.

I think you need JGM to look it over. Qualified mechanics are fine but Imprezas are a different kettle of fish, someone who works on them every day will be better at fault finding.

TurboFreak

Kwik, I do understand that someone specialising in Subarus might find something a normal qualified mechanic might not see, so if not sorted I will be using a scooby specialist next.

Ref fuel lines, remember the car started and run fine for about 2 months with the replacement enginge fitted apart fron an annoying 'hunting' on idle when hot.

Kwik

iTrader: (10)

Was there any running in during those 2 months?. Are you losing any water at all?

TurboFreak

No water lose and car drove fine, it has never been remapped with new engine.

Collected car this morning, it drove home fine (10 miles) and pulled well, so it seems like something has been done to improve things.

When hot the idle is still eratic, to the point where it can actually cut out.
I have swapped the idle control valve already but will put the other one back in this afternoon... maybe they are both faulty?

Any other ideas from you guys would be greatly appreciated, but my next logical step must be to get someone on it who really understands these cars.