Need Help!!!!!!!2jzgte acting up
10-11-15, 04:49 PM
#1
Need Help!!!!!!!2jzgte acting up
So over the past few weeks I have been noticing that my car had been breaking up at higher rpms....it wouldnt do it all the do every once in a while.....
Now all of a sudden the car has no power and when you rev it up it has problems.....I have attached a video to see im someone can help...
The car idles perfectly fine and starts up without no issue.....but soon as you give it any gas it falls on its face...
Keep in mind I have been driving the car since April 2014 with no additional modifications except the addition of a JDM 6 spd....ECU
I have 12V mod done...this is required to use TT Denso Fuel Pump
As of now I have replaced the following:
Opened up JDM 6 spd ECU....it is clean inside.....no leaking capacitors or nothing...
25k mile coil packs....
New spark plugs(copeprs)....gapped at .025
New ignitor clips...
Checked and replaced all vacuum lines.....
Checked all intercooler piping and connectors....
Checked all exhaust and downpipe....
Now all of a sudden the car has no power and when you rev it up it has problems.....I have attached a video to see im someone can help...
The car idles perfectly fine and starts up without no issue.....but soon as you give it any gas it falls on its face...
Keep in mind I have been driving the car since April 2014 with no additional modifications except the addition of a JDM 6 spd....ECU
I have 12V mod done...this is required to use TT Denso Fuel Pump
As of now I have replaced the following:
Opened up JDM 6 spd ECU....it is clean inside.....no leaking capacitors or nothing...
25k mile coil packs....
New spark plugs(copeprs)....gapped at .025
New ignitor clips...
Checked and replaced all vacuum lines.....
Checked all intercooler piping and connectors....
Checked all exhaust and downpipe....
Last edited by CatManD3W; 10-11-15 at 04:52 PM.
10-11-15, 05:17 PM
#2
check your fuel supply ... (pump , filter and regulator ). You are getting very lean when you were revving the car. You be careful. You will damage your engine. Do you have an aftermarket fuel regulator so much so you can check your fuel pressure ?
10-12-15, 05:42 AM
#5
How many HP is the stock regulator good to?
Are you staying with stock ECU? If so, buy a spare, send it right out to be rebuilt and when you get it back, do the other. Two perfect ECU's are great peace of mind. I had the seller of mine ship straight to a rebuild shop, than to me for this reason. I read that the damage is not always visible.
Did it change after re setting the ECU, assuming you tried that already. Unplug O2?
On a side note, damn your bay and interior are looking like a new, high end car.....
Are you staying with stock ECU? If so, buy a spare, send it right out to be rebuilt and when you get it back, do the other. Two perfect ECU's are great peace of mind. I had the seller of mine ship straight to a rebuild shop, than to me for this reason. I read that the damage is not always visible.
Did it change after re setting the ECU, assuming you tried that already. Unplug O2?
On a side note, damn your bay and interior are looking like a new, high end car.....
Last edited by Studiogeek; 10-12-15 at 05:51 AM.
10-12-15, 08:11 AM
#6
I got another Aristo ECU, MAP sensor, and TPS coming my way....see if that helps.....If it doesnt make any difference it has to be something with the fuel system..
I have another TT Denso pump that I will install to replace my existing one to see if that helps or not....
From what I read usually the stock fuel system is good for up to 500hp...i.e the lines.....
I have another TT Denso pump that I will install to replace my existing one to see if that helps or not....
From what I read usually the stock fuel system is good for up to 500hp...i.e the lines.....
Last edited by CatManD3W; 10-12-15 at 08:15 AM.
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10-12-15, 09:33 AM
#9
Rip out old garbage fuel lines....and run -6an feed from each pump to sard fuel rail....and a singel -6an return....
I was planning on running ID725's and MAPECU2
But I wanted to make sure the car was running in good condition before I start upgrading....
10-12-15, 10:58 AM
#11
dang ... those plugs do not even manifest what your wideband shows .
plugs says that you have an overly rich mixture with all of them having sooty carbon deposits but your wideband says it is very lean whenever you were revving it
.
so the condition seems like ... you are rich at idle but at higher RPMs , getting lean. I know based on our phone conversation you did take out the air filter , what was your AFR with and without turbo air filter ? Just wanted to make sure your air filter element hasn't collapsed. And did you ever take out your catback exhaust just to make sure your muffler hasn't collapsed too ?
EDIT : Are those BRK7EIX ? what are they gapped to ? didn't you tell me they are at 0.028" .... Leave them gapped at 0.032"
plugs says that you have an overly rich mixture with all of them having sooty carbon deposits but your wideband says it is very lean whenever you were revving it
.so the condition seems like ... you are rich at idle but at higher RPMs , getting lean. I know based on our phone conversation you did take out the air filter , what was your AFR with and without turbo air filter ? Just wanted to make sure your air filter element hasn't collapsed. And did you ever take out your catback exhaust just to make sure your muffler hasn't collapsed too ?
EDIT : Are those BRK7EIX ? what are they gapped to ? didn't you tell me they are at 0.028" .... Leave them gapped at 0.032"
Last edited by gerrb; 10-12-15 at 04:01 PM.
10-13-15, 08:33 AM
#12
I tried all those tests you mentioned and it made no difference...
Those iridium plugs I did not touch...they were gapped stock at .028...from what I heard from others is that these plugs dont last long in 2jzgte....thats why I switched over to coppers
Those iridium plugs I did not touch...they were gapped stock at .028...from what I heard from others is that these plugs dont last long in 2jzgte....thats why I switched over to coppers