escott

iTrader: (1)

First noticed this when getting the car remapped, at high revs in third. As it wasn't causing any problems the ECU was reset and it was fine for a while.

Then about a month after mapping, the CEL came on again at high revs in second. It went off after about 5 restarts, which is normal for a minor code which is no longer detected. Had the camshaft position sensor replaced (P0340 means camshaft position sensor circuit malfunction) with a known working second hand one and it was fine for a week.

Then when 'testing' the new one, CEL came on again at high revs in 2nd. Checked the code and it's P0340 again. Car is still running fine.

It's a 02 WRX Wagon, mods are:

Panel filter.
Prodrive Sports Cat.
Ecutek remap.
And lots of suspension and brake stuff which doesn't matter.

Maybe an important point - I've got a second hand 2001 WRX ECU because it had already been ecutek'd, so saving me a bit of money.

Stuff which could cause it which I have found using the magic what is Google:

1. Given the the sensor was replaced, could it still be a fault here, such as dirty or corroded contacts?

2. Possibly a grounding issue, which can be resolved by rewiring the ground?

3. An actual mechanical issue?

4. Problem with the 2001 ECU?

5. Problem with all bugeye ECU's?

If 4 or 5, is this a code which can be switched off by a mapper?

Your thoughts ladies and gentlemen please...

WRX_Rich

iTrader: (5)

my 02 bug used to get the same code now and again

never found a fix

dynamix

iTrader: (3)

Usually occurs when you bounce off the limiter.

Solution is to not bounce off the limiter

Hope that helps

escott

iTrader: (1)

Cheers! If it only happened then it would be ok, but it comes on between 6000-6500, which even grannies get to.

dynamix

iTrader: (3)

How recently has the cambelt been changed?

escott

iTrader: (1)

Can't remember which service that is - if 50k, then about 12k miles and 2 years ago. It's done about 59k now.

WRX_Rich

iTrader: (5)

sounds like just the same problem I had (with a few other my02 owners) no one found a fix as far as I was aware

i did think about using a spacer for the cam sensor but never got round to it

I found it went after 5 restarts, so didn't bother reseting the ECU


sorry I can't help any more

Nate

iTrader: (2)

So has anyone found a way of stopping this stupid code coming up ..... I have had the same problem for the last 3-4 years (am used to it now) and now the car judders under load once the CEL is on, when the CEL is off, it runs fine though

Neanderthal

iTrader: (6)

With a Tactrix cable & laptop you can download your ECU map and disable the warning for that particular code.
I did it with my P0420 code when I had a decat downpipe fitted (after living with it for 2 years thinking it was my only option).
Scoobypedia | Trusted knowledge for everything Subaru | Knowledge / Disable Subaru Fault Codes

Midlife......

iTrader: (2)

It's a normal bugeye trait .... "they all do that" a dealer would say. Personally I'd just forget about it like I do LOL.

It's possible to map out P0420 as it's got nothing to do with the engine ..... but not sure if you can map out more important engine CEL's like Camshaft, misfires EGT's etc.

Shaun

Bob Rawle

Its actualy down to the very poor grounding the MY01/02 bugeyes have, its interferance from the ignition system fooling the ecu into thinking there is a problem.

cheers

bob

EcuTek, Simtek, Link, Gems, DTA, Autronic, Motec, E-Manage, Apexi, Bosch, AEM

For Subaru, Misubishi, Porsche, Nissan

carl heath

sorry to crash thread but ive had 0304 missfire on 4 for about 6 months and had mapped by simon at jgm(about 2 months ago) who said could not see any problem when map was going on.car is 02 sti and i know its only a light on the dash but when its coming on all the time it does my head in and changes the way i drive it as thinking somthing is wrong,can anything be done to sort it bob rawle,thanks and sorry for the crash

Midlife......

iTrader: (2)

Hi Bob

I hope you and all the family are well and it's great to hear from you on an SN thread

My Bugeye is running 100% sweet despite looking nothing like it left the factory in Japan all those years ago in 2002.

Back in those days John Banks was fiddling around with mapping and I guess Mark Aigin was just starting out....... I wonder if Andy Forrest was still fettling marine engines LOL

I always wondered why the bugeye threw these CELS..and now I know

Do you remember the "playground fight" between me and Ninnybobs to get our bugeye's to get over 400 BHP

It might start again ...........

SUBARU IMPREZA 2.0 WRX STi 10 Spec C Type RA JDM Model- Auto Trader UK

KTF

Shaun

rpsxr

eehm.... its not only bug-eyes cause my blob had it today too.

anybody a real solution yet?

rgds Robert

escott

iTrader: (1)

Replaced the cam sensor a few weeks ago - has been fine so far...