HELP- Pre Detonation at 5k rpm
Registered User
iTrader: (20)
Joined: Mar 2004
Posts: 1,635
From: Hawaii
Car Info: 08 Nissan Titan, 12 MazdaSpeed 3, 15 Honda CRV
Sounds like a problem Devin who bought my LGT is having,..hitting a wall at 4k, of course no UTEC..
I was told it to be boost leak somewhere I can't find for new owner...Typical vacuum hose were found hanging, but hooked back up with zip ties and still connected after test drive with same problem...Was told it could be a vacuum leak in rubber intake hose to turbo, or double check the silicone hose (FMIC) to throttle body is connected well and no other tears/holes in any other silicone connectors..
Good luck,..
Subscribed,..
I was told it to be boost leak somewhere I can't find for new owner...Typical vacuum hose were found hanging, but hooked back up with zip ties and still connected after test drive with same problem...Was told it could be a vacuum leak in rubber intake hose to turbo, or double check the silicone hose (FMIC) to throttle body is connected well and no other tears/holes in any other silicone connectors..
Good luck,..
Subscribed,..
Registered User
iTrader: (13)
Joined: Feb 2010
Posts: 841
From: Honolulu
Car Info: 2003 wrx with hta68 1994 Honda accord h22a
how about boost levels? if you are overboosting then the car runs lean and will cut off like you are stalling in the middle of accelerating. had this problem due to manual boost controller.
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iTrader: (11)
Joined: Oct 2007
Posts: 2,177
From: Kapolei/Ewa Beach, HI
Car Info: 57 SM 04 STi, 04 Yamaha R6
Didnt you just sell this car or is this a new WRX? Goodluck, curious to see the problem, I know you'll find it. You got a good team here trying to figure it out with you.
IT DOES HAVE THE KNOCK COUNT, ITS THE LAST COLUMN. YES I GET A FLASHING CEL WHEN IT HAPPENS BUT THEN GOES AWAY.
4591 055 +12.5 80 +17.8 rich 00000
4578 056 +13.1 80 +18.0 rich 00000
4616 064 +13.1 70 +18.2 rich 00000
4498 073 +13.9 80 +8.7 rich 00006
4528 071 +14.7 70 +0.5 rich 00018
4516 069 +14.1 90 +0.5 rich 00016
4528 068 +14.1 80 +0.6 rich 00006
4420 059 +14.5 70 +0.5 rich 00019
4492 058 +14.3 80 +0.5 rich 00024
4385 024 +14.1 70 +0.5 rich 00009
4306 030 +14.3 80 +0.5 rich 00006
4065 000 +11.9 10 ECU. rich 00001
3675 000 +6.6 00 ECU. rich 00000
3350 000 +1.5 00 ECU. rich 00000
2989 000 -3.6 00 ECU. 13.8 00000
2952 013 -6.3 00 ECU. 23.2 00000
2929 014 -5.1 00 ECU. 14.1 00000
4591 055 +12.5 80 +17.8 rich 00000
4578 056 +13.1 80 +18.0 rich 00000
4616 064 +13.1 70 +18.2 rich 00000
4498 073 +13.9 80 +8.7 rich 00006
4528 071 +14.7 70 +0.5 rich 00018
4516 069 +14.1 90 +0.5 rich 00016
4528 068 +14.1 80 +0.6 rich 00006
4420 059 +14.5 70 +0.5 rich 00019
4492 058 +14.3 80 +0.5 rich 00024
4385 024 +14.1 70 +0.5 rich 00009
4306 030 +14.3 80 +0.5 rich 00006
4065 000 +11.9 10 ECU. rich 00001
3675 000 +6.6 00 ECU. rich 00000
3350 000 +1.5 00 ECU. rich 00000
2989 000 -3.6 00 ECU. 13.8 00000
2952 013 -6.3 00 ECU. 23.2 00000
2929 014 -5.1 00 ECU. 14.1 00000
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iTrader: (33)
Joined: Nov 2002
Posts: 10,455
From: Boostin' troubles away - 4EAT Memories 12.87@103.2
Car Info: 51E LHD V7 STI (2.0)
Thread Starter
Registered User
Joined: Oct 2009
Posts: 71
From: Oahu
Car Info: 2002 wrx
This is the car I sold and while waiting for the check to clear this happened and I'm trying to fix it so I can complete the deal.
I putlled the timing belt covers and everything is aligned properly so belt never jumped.
I was told that the ecu could be screwed up.
I'm stressin out. I didn't do anything nutz to cause this.
I putlled the timing belt covers and everything is aligned properly so belt never jumped.
I was told that the ecu could be screwed up.
I'm stressin out. I didn't do anything nutz to cause this.
If you've eliminated all other possible suspects, uh, I guess to check the ECU, you could do generally one of two things.
1. Just just swapping it with another completely stock 02 (maybe 03? - not sure) ECU and see what happens. I would leave the UTEC out of the equation.
2. Using a tactrix cable flash a stock ROM to your ECU. This method wipes it and you'd be flashing the ECU with a stock one like it came from the factory. This is different than just 'reseting' your ECU by disconnecting the battery.
If you dont have a cable and all the software already loaded, Option 1 would be easier and take like 20-30 minutes tops.
1. Just just swapping it with another completely stock 02 (maybe 03? - not sure) ECU and see what happens. I would leave the UTEC out of the equation.
2. Using a tactrix cable flash a stock ROM to your ECU. This method wipes it and you'd be flashing the ECU with a stock one like it came from the factory. This is different than just 'reseting' your ECU by disconnecting the battery.
If you dont have a cable and all the software already loaded, Option 1 would be easier and take like 20-30 minutes tops.
Last edited by Thug Nasty; Apr 27, 2010 at 11:53 PM.
Thread Starter
Registered User
Joined: Oct 2009
Posts: 71
From: Oahu
Car Info: 2002 wrx
I have another ecu but i don't know if its for a wrx or sti it has different numbers on it than my stock one. It came with my utec and was hooked up to a 02 wrx but i think it was flashed and i initially installed it with my utec and it ran like crap but when i installed my stock one it was fine. It was from the guy in makaha that wrecked his built bugeye and parted it out.
Numbers on it are 7e 22611aj030 denso
Maybe i can reflash this ecu, anyone can reflash these things
Anyone willing to lend me an ECU?
Numbers on it are 7e 22611aj030 denso
Maybe i can reflash this ecu, anyone can reflash these things
Anyone willing to lend me an ECU?
Last edited by THESLEEPER; Apr 28, 2010 at 12:26 AM.
Thread Starter
Registered User
Joined: Oct 2009
Posts: 71
From: Oahu
Car Info: 2002 wrx
I installed my spare ecu that was flashed because even though it was flashed and runs like crap on my car at least maybe i could tell if the car would rev past 5k rpm... IT DID!
I think this whole problem was my ECU!
I need help either flashing my ECU back to stock or locating a new one.
Thanks a lot for everyones help.
I think this whole problem was my ECU!
I need help either flashing my ECU back to stock or locating a new one.
Thanks a lot for everyones help.