Gsr not starting

[CLuTZ]

It could also be an injector seat seal that is leaking. Also very common for the throttle body shaft seal to go too.

 

[Ian91]

It could also be an injector seat seal that is leaking. Also very common for the throttle body shaft seal to go too.

Yep I did think that, I replaced the injector seals because the old ones were pretty solid, throttle body is brand new but I am still going to go over it again with a spray bottle, I am just sorting the real bad ones first

 

[Ian91]

Ok, went over the cooler system again after replacing the manifold gasket, fixed a couple of leaks in the joiners.

Car drives 1000000x better than before, holds boost to 10psi which is the gate pressure, will run till redline without jumping back and forth..

But... There is still some sort of issue, once I get over 4k rpm it will still build boost and will rev right through but it has a weird noise in the revs, it sounds like it is rising and falling in the revs a few hundred rpm either way, however I don't see that on the tacho. I can feel it in the car too, sort of like a quick loss of power than it comes back on and off and on and off until I get off the throttle.

I have an innovate wideband to install so I can atleast see if the afr is not the issue, I can get the injectors cleaned and fiddle with the fpr if it is leaning out, where else should I look for problems? Could it be the afm or the ecu?

The other thing I thought it could be was the wastegate, I haven't setup the boost controller so the wg is just running on its own, once I build 10psi it could be opening and closing and that's the feeling of power loss and gain.

I'm going to fit the wideband first and go from there but was just seeing if there was any other ideas. Then if the afrs are good I'll find a nice open road and tune the boost controller.

Still could be coilpacks I guess but it doesn't feel like it's breaking down the way I've had that happen before :/


Thanks guys

 

[4piknup]

Sounds good. Looks like you are having a win now.
What spark gap do you have now? 4k is going to be in the meat of the boost id think, maybe even a bit of surge as the wastegate tries to control boost.
A std ecu might even be on the boostcut?

 

[Ian91]

It's an evo (2?) ecu so maybe boost cut, how do I tell?

 

[Ian91]

Not sure of plug gap, I can pull one and check later on, what should it be? Also what psi should my fuel pressure be at idle and WOT at say 10 psi

 

[4piknup]

It's an evo (2?) ecu so maybe boost cut, how do I tell?

I see you have a chipped ecu? (You should put your mods list in your signature). Im not sure when it hits boost cut. So you have the td05 and egate and evo intercooler and 10psi?
Does it over boost the 10psi at that 4k?

Plug gap...im going to say 1mm is too big. Try 0.8mm. The other guys know more about this. There is a rule about boost and plug gap, but I cant remember it at mo.
I think std is 0.9? But you have a bit more boost than std so you need to gap down a bit.
Just shrink the gap and retest, its nothing to open them back up after.

 

[Ian91]

I see you have a chipped ecu? (You should put your mods list in your signature). Im not sure when it hits boost cut. So you have the td05 and egate and evo intercooler and 10psi?
Does it over boost the 10psi at that 4k?

Plug gap...im going to say 1mm is too big. Try 0.8mm. The other guys know more about this. There is a rule about boost and plug gap, but I cant remember it at mo.
I think std is 0.9? But you have a bit more boost than std so you need to gap down a bit.
Just shrink the gap and retest, its nothing to open them back up after.

I have 560cc injectors, evo afm, tdo5 turbo and I'll have to pull the ecu and confirm exactly which one I've got, I can't remember if it was a chipped gsr ecu or just an evo ecu to suit afm and injectors and turbo, I'll close the gaps a little and see what happens still gonna do the wideband first though

Thanks

 

[4piknup]

Fuel pressure should be 43.5 and rising with boost.
You said chipped ecu in your members rides thread

 

[Ian91]

Fuel pressure should be 43.5 and rising with boost.
You said chipped ecu in your members rides thread

That's what I have it set at now so that should be right, not sure about the ecu, I possibly guessed on my ride thread because I bought it ages ago, won't take long for me to pull it out and see

 

[evo-gsr]

It's an evo (2?) ecu so maybe boost cut, how do I tell?

you will know if its boost cut..its like hitting a concrete pilon at 80kmh.
Sounds more like boost creep, what exhaust do you have from dump onwards?

Gap plugs down to 0.8 or even 0.7 wont hurt....what plugs are they ?

 

[Ian91]

Oh ok, um exhaust is 2.5 inch dump and 3 inch from there to the end. I'll find out the part number of the plugs when I pull them out to check gaps

 

[khubner1]

plug gaps should be a factory .8 but most of us gap down to .6 boost cut is at 15psi and if you hit it you'll know about it. you'll feel like someones thrown an anchor out the back

plug gaps too wide are generally characterized by misfiring under full load full boost

 

[4piknup]

Onya k.

 

[Ian91]

plug gaps should be a factory .8 but most of us gap down to .6 boost cut is at 15psi and if you hit it you'll know about it. you'll feel like someones thrown an anchor out the back

plug gaps too wide are generally characterized by misfiring under full load full boost

Thanks for the info, it doesn't feel like a miss but I'm gonna gap them down and see what happens

 

[evo-gsr]

Oh ok, um exhaust is 2.5 inch dump and 3 inch from there to the end. I'll find out the part number of the plugs when I pull them out to check gaps

could be causing boost creep with that combo.

 

[Ian91]

could be causing boost creep with that combo.

Would that show on the gauge? Because the peak boost is never over 10psi no matter how hard I go, turbo has one of those ported gt pumps rear housings if that makes a difference?

Ok pulled the plugs out they are bkr5e and the gap was quite abit bigger than .6 so I'll close it down and see what happens. They have a lot of black on the tip but the little curved bit is white ( see pics) what would that indicate?

Installed wideband, under load it goes down to around 10.5-11 is that too rich? Sits between 13.8 and 14.5 at idle and jumps way up the dial when I decel. I don't have the cable to connect to the computer to program it yet so it's just running how I bought it second hand but the car it came off was running 98, not sure what other things need to be programmed?

I'm going to whip out the ECU real quick and check which one I have, seeing that it's running rich I think maybe it's not chipped for 560cc injectors. Maybe a new chip would fix the issue.

 

[Ian91]

Here's some pics of the ECU, definatly chipped although who knows what the chip is actually written to run, the sticker on it looks like Japanese writing up top then says

TDL06
L2

Dunno if anyone can identify what car it is originally from?

 

[blackvr]

The spark plugs are a bit hot for your turbo motor.. should be BKR7E ie a colder plug. Not that the "5" will be causing any real issues at a low 10 psi boost. Judging by the spark plug, there is no shortage of fuel in the combustion chamber...

 

[khubner1]

It notmal for it to go lean on decel. Only tun 98 ron fuel never put any less in

10.5- 11 is normal for on load olug confition indicates to me preety nirmal operation that chip is probably for a larger td06sl turbo