Mostyn

Will my glanza run with the airbag modual and all the wiring ripped out?

1 hour ago, Jay85 said:

If the engine runs fine, the turbo is ok and it’s only on boost but you can nurse it through on gentle boost, I’d bet my left nut (my favourite one) that it’s leads

Well I'll try some different ones tomorrow and  if that is the case and sorts it out then il either post or personally deliver my left nut (also my favourite one) to you as a token of my appreciation. Hahah 

Damn I knew it haha The ones I've spoken to aren't that helpful and have no idea when it comes to problems like mine 

Ok il try different plug leads, guessing your gonna be miles away, I'm in South Wales ?

Yeah I'll try that next then anything else it could be ?

Nope just the king lead ?

Hi yall relatively new to the starlet scene I've got a ep91 glanza v td04 externally gated running dasteck 

so the car was running perfect pulling well through all the gears, then going up the dual carriageway couple of months back doing some speed in 5th in lost power and started misfiring/juddering in boost(eml didn't come on)so eased off and pulled off as soon as I could and had a quick squint around the bay and everything was as it normally was pulled off and then the problem was still there in boost, it pops bangs and splutters like a twat but only in boost 

The car also used to be very rapid. Wheel spinning and really used to shift you in the seat, but now it feels like your trying to tow another car along, gutless but does not bog out, the whole running of the car has been slowed down not just in boost when the misfire happens. also, adjusting the boost controller makes the issue worse, the more boost you try and run the harder and more aggressive the fault gets, it splutter/coughs/misfires for longer in the boost stage

When car is ran through up to boost very slowly and under no hard load the miss fire does not occur. But running hard into boost the car goes into a splutter/cough/bags as if the A/F mixture or timing changes. Have i missed anything else that can alter these two variables while doing my tests?

changed and checked a lot of things so far but to no success including 

parts changed(all new)

plugs ,king lead, dizzy cap and rotor arm,igniter,turbo, boost controller

parts checked/tested 

compression test came back fine 

Tested map sensor and wiring to ecu also tried a different one

Top pin 5V
Middle pin ground Signal pin 2.6V with engine off. Signal voltage increases as boost increases. Gets to about 3.6v at around .5 bar of boost

tested the sard fuel pressure regulator holds vacuums and pressure

tested tps including wiring 

3 wire TPS, 
top pin 5v
Middle pin earth
Bottom pin 12V when throttle opened

tested Coolant sensor reading 0.5v at ECU when running, and does not change when fault occurs in boost

electricaly tested injectors 

can hear fuel pump 

all wiring removed from ecu and tested to each connector to measure resistance with no abnormal readings. Wiring was also traced and fed to light up a bulb to ensure solid connection and all did so fine

Knock sensor has not yet to be tested. I am looking for any info on expected test procedures/expected information readings.

really cooking my brain and unbelievably irritating it's getting almost un drivable hopefully someone here's had similar problems and can shed some light or point me in the right direction 

Any help appreciated and will try pretty much anything haha 

Did you sort the problem out? If so what was it?

17 hours ago, gibby1980 said:

Try changing that map sensor and do a diagnostics test again. See if it's the same. Does the software for the dastek show the same 8psi? I would see that in tunerstudio for the Megasquirt. Confirm if the dastek is tuned for the higher rpms/boost?

Ok I shall do that whenever I can get my hands on one, How would I test that? It was running fine untill I was going up the dual and suddenly lost power and then started spluttering when in boost 

@T-dogChecked timing yestarday and that's spot on, @gorganl2000 Plugged in the carmanscan diagnostics yesterday also and it said the map sensor was reading 8psi constant even withought it running so not sure if that's right, @gibby1980 running dastek 

4 hours ago, Jay85 said:

Did you check the plug gaps before fitting? Incorrect gaps canrun fine on normal driving but will fail under load. 

Yeah they're spot on.... and done a diagnostic code earlier and no codes came back 

12 hours ago, Mostyn said:

@Jay85 it's spluttering like hell only in boost runs perfect out of boost, running a td04 external gate changed dizzy cap and rotor arm,plugs,turbo,king lead,ignitor 

really doing my head it 

I've already said mate ? Look^

59 minutes ago, Jay85 said:

Check your king lead, this is the Center lead that goes from dizzy to coil. It’s quite possible this is fooked and is breaking down under load. 

Already changed it mate genuine Toyota one too 

@Jay85 it's spluttering like hell only in boost runs perfect out of boost, running a td04 external gate changed dizzy cap and rotor arm,plugs,turbo,king lead,ignitor 

really doing my head it 

On 21/11/2014, 09:53:16, dangeestarlet said:

Yeap the main cause was a wire off on ecu http://youtu.be/iyMPmaqXO10

Check other vids if it boosting. Sounds loud as didn't have no sidexit gasket lol

Don't suppose you know/remember what wire do you ? Mines got the same fault 

Did you solve this problem? If so what was it?

Did you sort this out ? If so what was the problem?