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evo-gsr said:
Why are you using BKR plugs anyway?

BPR7ES are what you should be using Ian.
Click to expand...
Yea I may end up going that way when I pull the dash apart to fit the climate control later on.

Um I went into repco and asked for plugs and that's what they had in the system for a 4g93t, maybe he only looked up 4g93 rather?

I'll get some of those plugs and see if it changes anything, what's the difference between them anyway?

Thanks for all the things to try out
 
evo-gsr said:
Why are you using BKR plugs anyway?

BPR7ES are what you should be using Ian.
Click to expand...
Ian91 said:
Yea I may end up going that way when I pull the dash apart to fit the climate control later on.

Um I went into repco and asked for plugs and that's what they had in the system for a 4g93t, maybe he only looked up 4g93 rather?

I'll get some of those plugs and see if it changes anything, what's the difference between them anyway?

Thanks for all the things to try out
Click to expand...
If you have a 4G93T it definitely takes the BKR5E for a stock gsr.
I run BKR7's in mine and have so for years.

BPR(6/7)ES are for the 4G63T engine.

You definitely have the 4G93T?

Hope you get it sorted! :)
 
3zercrowd said:
If you have a 4G93T it definitely takes the BKR5E for a stock gsr.
I run BKR7's in mine and have so for years.

BPR(6/7)ES are for the 4G63T engine.

You definitely have the 4G93T?

Hope you get it sorted! :)
Click to expand...
Yep definatly the 1.8l lol
 
It seems a little rich at idle as well. Is it in closed loop at idle? Ie. The afr bouncing around a specific number (should be 14.7:1) if its bouncing around a lower number, you may have a earth offset making the numbers a bit low overall.
 
Ian91 said:
Yep definatly the 1.8l lol
Click to expand...
LOL Yeah I went back and looked at the members rides thread...

I was just thinking that if you are doing so many upgrades now and in the future, it might help to upgrade from the chipped ecu to an aftermarket ecu or something that can either fit into the stock case, or plug in and retain the case and plugs for that stock look if you're worried.
This can also control/overcome your EBC, wideband as well as your boost creep/gate/ignition/ISC/ fuel problems etc.... perhaps a AFM delete and add a MAP sensor.......help tie it all into one control unit. You could always retain a AFM for visual appeal and have it plugged and dummy wired in and gut it out. I never worried about keeping it however, and I just have a nice intake pipe with all of the breather lines plumbed in.
I personally have ran an aftermarket ECU since 2007 after having the chipped ecu/evo bolt ons etc.... and have never looked back....Tune it all on a laptop so you can see it all out in the open in front of you!

Check out my members rides thread if you have the time as it has a lot of info too!
 
jack of all said:
By the ecu numbers its a evo3 ecu.
I also can see that it has the required parts inside for fan control. This was only on the evo3 (and s2 gsr).
Click to expand...
jack of all said:
It seems a little rich at idle as well. Is it in closed loop at idle? Ie. The afr bouncing around a specific number (should be 14.7:1) if its bouncing around a lower number, you may have a earth offset making the numbers a bit low overall.
Click to expand...
3zercrowd said:
LOL Yeah I went back and looked at the members rides thread...

I was just thinking that if you are doing so many upgrades now and in the future, it might help to upgrade from the chipped ecu to an aftermarket ecu or something that can either fit into the stock case, or plug in and retain the case and plugs for that stock look if you're worried.
This can also control/overcome your EBC, wideband as well as your boost creep/gate/ignition/ISC/ fuel problems etc.... perhaps a AFM delete and add a MAP sensor.......help tie it all into one control unit. You could always retain a AFM for visual appeal and have it plugged and dummy wired in and gut it out. I never worried about keeping it however, and I just have a nice intake pipe with all of the breather lines plumbed in.
I personally have ran an aftermarket ECU since 2007 after having the chipped ecu/evo bolt ons etc.... and have never looked back....Tune it all on a laptop so you can see it all out in the open in front of you!

Check out my members rides thread if you have the time as it has a lot of info too!
Click to expand...
That would explain why my fans haven't worked yet, hasn't over heated yet though :) is it easy to get it working off the ECU or easier to just tig up a temp sensor and relay?

Yea it sits close to 14.7 at idle, bounces up and down from there

3zercrowd, I will most likely look into that in the future, either aftermarket or later model evo like some of the other guys, I just want to get it running right for now.
 
Oh yea also went and grabbed some bkr7e spark plugs... Didn't make a difference

However last night I hooked up a boost gauge and today while driving I noticed something. I don't think the issue I'm having is rpm related, I think there's an issue with the wastegate system or boost controller because on the boost gauge it'll get to .7 bar and start dipping and rising and I can here the turbo come on and off boost, which is what is making me think the wastegate is not holding shut or something. I'll have to do abit of a road tune on the ebc and see if I can get the wastegate to hold shut.

Is there a way I can hold the external gate shut manually just to see if the problem goes away if the gate can't open?

I may also even have the wastegate plumbed wrong, there were so many different ways to plumb it to the solenoid on the net
 
jack of all said:
Relay is in fuse box under dash. Just need to trigger it from the ecu (or from a temp sensor in bottom of radiator.)


How did the regapped plugs compare?
Click to expand...
Thanks I'll stick an adaptor and temp sensor in the bottom hose.

No difference with the right plugs or with the others gapped down.

After seeing what the boost gauge was doing I'm pretty confident it is the boost controller or wastegate. I'm gonna find a quiet road and program the boost controller and see what happens, I think maybe since the wastegate is just running on spring pressure that it's just popping open and then closing, I need to tune the ebc to control the opening rather than it just opening right up, dropping pressure then closing over and over
 
3zercrowd said:
If you have a 4G93T it definitely takes the BKR5E for a stock gsr.
I run BKR7's in mine and have so for years.

BPR(6/7)ES are for the 4G63T engine.

You definitely have the 4G93T?

Hope you get it sorted! :)
Click to expand...
shows how long I havent owned a 93t for.

63t FTW!
 
theres a very real posibility your external gate is quite simply TOO large allowing to much exhaust gasses to bypass the turbine so as it comes on boost gate opens up to much gas goes through the gate and turbo comes off boost gate closes and the cycle repeats
 
khubner1 said:
theres a very real posibility your external gate is quite simply TOO large allowing to much exhaust gasses to bypass the turbine so as it comes on boost gate opens up to much gas goes through the gate and turbo comes off boost gate closes and the cycle repeats
Click to expand...
I get what you mean but I wouldn't have thought a 38mm gate was too big?

Another thing to look at anyway

Thanks
 

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