thought i would use my newly acquired SLR camera :dance:... holiday and editorial photo's are gonna rock :D

 

anyway these boost jets that were in the car when i bought it are finally out................... SHOCKING!!!!!!!!!!:mac1:

 

 

 

 

 

 

after i took these out and replaced them with some piping connectors santa and myself went for a spin.

 

now the car goes to safety boost only. It still has the engine missing at high revs so now we are thinking that when the boost controller was taken out the wastegate solenoid was not connected properly,

 

would you lot all agree this is the case? Me and santa are worried because surely with safety boost i should not be experiencing the major engine missing????

 

we will try to see what needs reconnecting next time however i would also like to add..... even though i am on safety boost the car generally runs better. does not stall....... Actually feels quicker boosting.......... and seems alot smoother in general (less lumpy)

 

santa can confirm what others might not understand (my writing)

 

either way... i am a step closer and the car runs better... now to find out what could be causing the missing

 

 

is there anything i have missed santa? maybe my ecu needs changing or it it the speedo conversion?

great picks I can see you burnt your finger:rofl:

yeah was frying the steak for my wife and the pan started slipping off the top........... silly handle design only has grip half way up so when i caught the handle i caught the metal part :slap:

thing is it`s not like it`s missing it`s just a sudden loss of boost, so next step is to check the solenoids, take that pic when you get the chance, bet those hoses are from the solenoids.

don't be shy anyone .. take a guess :tongue:

thing is it`s not like it`s missing it`s just a sudden loss of boost, so next step is to check the solenoids, take that pic when you get the chance, bet those hoses are from the solenoids.

 

Yeah i will take a picture on my return.

 

i think if we get some ideas what else it could be i can make a list of things to check

Safety boost won't stop it missing.

If it's not running right the boost won't make any difference.

Who put the boost jets in if it had a boost controller? :confused:

Nothing wrong with boost jets as long as they are the right size to restrict the airflow down the pipe.

the last guy who had it i think.

 

MrSufc

I'm thinking they were there first, the owner didn't know and thought "I want more power" so installed the boost controller. Easy enough to do if you dont know the boost jets are in there to start with.

 

If your in safty boost you should have an error code of some sort, have you looked at that to see whats what?

Well i don't think i am going to get an error code. previous to the boost jets coming out i was running safety boost levels and i had no errors (basic diagnostic) and also no errors on conzult.

 

we tightened up some hoses and adjusted the idle using the aid of ecu talk to see the voltage and we started getting full standard boost so next we thought that maybe i had a leak. took it for another spin but i still get a pressure drop at high revs if using full boost for longer than 5 seconds.

 

So next we thought those dodgy boost jets are the problem especially considering one boost jet had a hole bigger than the other.

 

So we removed these and got some pipe connector and now the system is normal (ish)

 

we went for a run and now we get safety boost again and the car actually runs better however i still get the boost pressure loss under full load.

 

santa... can you help explain more than me? :-)

 

anyway as i had no errors in the first place i still dont think taking the boost jets out are gonna give me any new errors.

 

Our belief is the wastegate solenoid is not connected properly after the boost controller was taken out. However it could also be that it is not a boost problem and the guy sold it because he was worried it is completely broken.

 

I just can't get my head around why it looses pressure under full throttle after 5 seconds.

 

Can't hear any boost leaks and head gasket is fine.

 

other possabilites are:

 

ECU. he mentioned it was upgraded to stage 1 (whatever that means) and maybe it is faulty

 

Speedo conversion: my mileage and trip stopped working and so maybe this is related to the clocks and the engine problem

 

boost leak: maybe there is a boost leak small enough to not be noticed for normal driving but gies on high loads of boost.

 

I will get some video's going aswell because unless you are in or near the car it is hard to explain

OK so to clarify, are you running in Safety boost, or is it hitting full boost then dropping off?

 

The two are completely different things.

it is hard to say.

 

The safety boost is just what the reading is looking like. but it does drop off.

 

i'll try to explain better.

 

 

Start car (idles fine) let car warm up. go to A130 or any road more than 60.

 

Put the pedal right down, the auto box kixks down and the turbo needle works its way up to whatever boost it is on. After the needle is at the furthest it will go the engine will keep accelerating until about 4-5 seconds (still got pedal all the way down) all of a sudden the car jumps as if the car stops pulling for a second.

 

looking at the turbo needle the gauge drops down a little when this happens. If i keep the foot on the floor still the turbo gauge will start to grow again to the same point and do the same.

 

It is like a boost pressure loss however when thinking about it the scenario would also be the same if the engine is missing... if i was to take my foot off the pedal for a second the gauge does the same thing.... this makes it hard to tell if it is engine or boost problems.

 

But generally the coils work, Injectors work, When not boosting to full the car is not lumpy and runs sweet.

 

can't tell if it is engine related, Wastegate related, (hence my post about the piping not put back properly after taking ebc out) vacuum related or electrical.

 

ALthough the car is now running the same levels as safety boost it is smoother and more respinsive than when boost jets were in. My old zed went on safety boost before but it never caused the second long power loss/hesitation.

 

I am on holiday tonight however it would be good if someone can come and meet me and santa to see what happens and get a feel for some opinions. :-)

Well im in the area, Any day after 8pm I'm about to have a look.

Well im in the area, Any day after 8pm I'm about to have a look.

 

sounds good matey.

 

i am back on the 12th so any day after that is good. You will get to meet santa too if he is around so lets wait till after the 12th and we can book it in with santa aswell so that we are all available. :) :)

just to add.. If i had boost jets and were still low on boost that would indicate a HUGE leak wouldn't it? Trouble is i heard a bost leak that big would be heard on normal driving aswell and would run like a bag of spanners.....

 

I have two bits of piping coming from the big pipes at the front (inlet i think) these then go into the T section (metal) and do not connect into anything else. looks like wastegate and ecu wastegate solenoid are both unconnected. Only thing is... surely with the wastegates vacuums unplugged i would be over boosting to oblivion, and well...... i'm not

anyway need to get that off my mind and go to my holiday now.... take care and ill check up either when i am back or when i am on holiday. Taking PSP so can surf the net and check my cameras by remote play :-)

When you fit the ebc you will disconnect the stock boost solnoids anyway as you only want one thing controlling the boost!

 

The missing sounds like something else, electrical issue maybe

well santa seesm to think it feels more lke momentary pressure loss. Coils and injectors are fine. PTU is fine. (he will explain more later) He said it runs smooth it's just a sudden loss.

 

but surely with boost jets and no ecb the vacuum pipess must be put back in?

Like damo said, when you give it some welly, it boosts up to a point then it reacts as if somethings blowing out built up pressure, only for it to return at a lower level, it`s very sudden and always at the same point, it`s not jerky just wham..gone. The boost guage is reading lower than with the jets in hence the safety comment, but feels a lot slower than mine n that`s stock. He has a couple more clips to replace off the turbos then, the best thing i think to do is sort out the solenoids in order to return as much to stock as possible n take from there. The ecu is an unknown quantity at this point. Sensor wise, everythings healthy as far as diagnostics goes. Gradually narrowing it down though.

just a thought are you running the stock recircs or external wastegates? just wondered if they were at fault causing loss of boost?!?!

he`s on stock, but seeing what i`ve seen i wouldn`t be suprised if they`ve been messed with, got to rip his vac lines n start over,it`s a bit of a mess, need a weekend on it, n those shortie bays are pretty tight thought the lwb was bad! You may have hit a note there though.

huh engine bays are the same?

 

well if its not electrical its will be a leak or the maf acting up

Well his bay deffo has less room than mine to play with, on the sides especially. Mine may just be a tidy one, i can fit my hands down mine, feel like a fat fudge in his lol! When he returns will try both maf n ptu from mine and hopefuuly his vac hose will have arrived. I bet his stock recircs were not reconnected along with the solenoids, will have to find a layout of the vac lines somewhere.

Edited June 3, 200916 yr by santa

i have returned :-)

 

looking at more posts whilst on holiday alot of people having the same issues are relating it to boost leaks (will change some more clips) PTU (fitting it today) , MAF (mine revs all the way to red) and coil packs (splits).

 

i will try all this along with borriwing santas maf and ptu.

 

other than that i guess i will have to order a new EFI harness.

Hi mate, have checked n your boost solenoids are deffo disconnected, which would b the first thing to hook back up, will affect boost big time. Have a leak detector here but never used it so don`t know if it works n you`ll need a compressor or something to quickly raise the pressure.

ok cool. i will have to see about borrowing one from someone :-)