406oc.co.uk

Hi Guys,

Having had the car remapped by a chap off the ECUedit website using my original map claimed 170hp/410nm and DEFAPPED the car is still entering limp mode.

The CAT and DPF has been removed and replaced with a length of equal length pipe.

I finally got PP2000 to work after a load of chew with it not wanting to play.

I've attached the fault code readout. Alot of unrelated faults that won't clear are there.

Suggestions on fixing this "low fault fault" the EML seems to clear itself after awhile, but under WOT over 65mph the car will go into limp mode.

Strange that there are so many fap related faults after a de-fapped re-map.

First thing I would do is try going into the ecu again, somewhere in there you can change the configurations, select the particular filter and set it to absent, hopefully this may clear all of the additive and filter related faults.

I guess with your custom cat replacement pipe the exhaust temprature probe has been removed, (I believe it is only used for the regenerating the fap so not needed, but not sure if it will clear with fap absent in the ecu)

Also when you highlight a fault (like you have with the top one) sometimes you can press f6 and it will give you more details of the fault.

If you paid for the ECU work by a company then you should be asking them to sort this out, this particular company asked our permission to advertise here so I don't think they'd like to see any problems not being addressed.

Let us know how you get on?

Do the codes clear down then come back after starting the engine, or not clear down at all?

Turbo pressure too low could be a vacuum issue, have you checked the swirl diaphragm rod on the right side of the engine as you stand infront of the car, when you start the car the vacuum should pull it back towards the bulkhead and when you rev to 2100rpm it should push forward.

If you have any concerns speak to EcuEdit, service really is great and always more than happy to help with any issues that may arise to make sure everything is operating correctly.

Vac leaks usually cause turbo overboost don't they?

True.... i should pay more attention when typing!
Could be a Map sensor issue, do you hear the turbo spooling?

bigjohn333 wrote:Hi Guys,

Having had the car remapped by a chap off the ECUedit website using my original map claimed 170hp/410nm and DEFAPPED the car is still entering limp mode.

The CAT and DPF has been removed and replaced with a length of equal length pipe.

I finally got PP2000 to work after a load of chew with it not wanting to play.

I've attached the fault code readout. Alot of unrelated faults that won't clear are there.

Suggestions on fixing this "low fault fault" the EML seems to clear itself after awhile, but under WOT over 65mph the car will go into limp mode.

Was this a map from ecuedit direct, or someone else posting on their forum? The reason I ask is that Srdan and co. pride themselves on first class customer service and will generally go to a lot of effort to make sure you're happy - do they know you have an issue?

If I've understood you correctly - these faults have been cleared, but recurr, the only sensible answer is that the ecu map you have installed is not actually de-fapped. Any chance they've been mixed up?

The pre/post heating you can ignore, most of them have this without any detriment.

Turbo pressure too low is unusual - are the MAP sensor values normal, (around 1000 mbar at idle, rising to 1500/1600 if you blip the throttle).
If it's low or static look for a leak / broken pipe at the sensor.

All the others are FAP related.

I think the problem is solved.

I was wondering why there was a small pipe coming off the intercooler which was leaking boost, I thought that's a crude way of venting excessive pressure. A little thinking and I unplugged a sensor which I thought was part of the FAP, turns out that was under the air filter with two pipes coming from it. This one I'd unplugged was the map sensor which was down the bottom of the engine. It'd previously been repaired since it was covered it glue, hence it's constantly reading atmospheric pressure and when it gets to higher boost it flips a code.

New one ordered in tommorow, will let you know how I get on.

The Car is now devoid of any excess vacuum solenoids. I've removed the actuators and pipes for the air doser redirection valves, I've also flushed out the intercooler and pipes which had collected a little oil in the bends with hot water and soap...

So now it's just two electro valves, the EGR, Turbo Controller, Swirl Flaps and all brand new vacuum pipes, I've unbolted the vac tank and put it somewhere more accessible previously bolted to the brake servo.

Bit shocked with this car, everything is held together with cable ties poorly, there's jubilee clips missing and the air filter is loose and flapping around.

I will bolt it to the battery tray, since the original mountings have clearly been broken off...

Had to also sort an issue with the fuel pipes fraying against the engine hoisting point thanks to a melted/broken clip.

-Sigh- Amateur Mechanics.

The MAP sensor is the one on the side of the ECU box, with the pipe from the intercooler. That pipe is often in very poor condition at the intercooler end - worth a check. Mine needs changing and it's a right git to get to!

The thing under the airbox with two pipes is the electrovalve (EV) for the swirl flaps.

It is possible to remove the vac reserve now that you've only got 2 EVs in operation, it's a fairly common thing to do on this engine. No real requirement unless it's (suspected) leaking though.

jonsowman wrote:The MAP sensor is the one on the side of the ECU box, with the pipe from the intercooler. That pipe is often in very poor condition at the intercooler end - worth a check. Mine needs changing and it's a right git to get to!

The thing under the airbox with two pipes is the electrovalve (EV) for the swirl flaps.

It is possible to remove the vac reserve now that you've only got 2 EVs in operation, it's a fairly common thing to do on this engine. No real requirement unless it's (suspected) leaking though.

No I found those EVs same as on the bulk head, it's a map sensor with two pipes coming off it going back under the car. What I assume is the differential sensor for the DPF.

The coupes MAP is on the left - Saloons and Estates are on the right. The intercoolers are in a different place on the coupes...

GingerMagic wrote:The coupes MAP is on the left - Saloons and Estates are on the right. The intercoolers are in a different place on the coupes...

Oh of course, completely forgot that! Sorry for the confusion