INVIDIA DP MASSIVE DET PLS HELP

SILVERABQSTi · 11-21-2003, 06:09 PM

I have just installed an invidia down pipe and the car is a lot faster but at 3 grand to redline it sound like a pellet going ape **** in the exhaust and it is already throwing a cel light no reflashed ecu and i got the car in july please help any info greatly appreciated

***staticx313*** · 11-21-2003, 08:18 PM

are you sure you're detonating and its not just leakage or rattling... also have you had detonation before... what octane gas. Thanks and Im sure we can come up with something with a little more info.

Robert~

SILVERABQSTi · 11-22-2003, 08:08 AM

I am running 91 octane had slight det with stock downpipe and i checked to make sure i had no leeks I am going to check and see if it is intake noise since i took out the resonator i hope this is it but we will se i will keep you posted and any other suggestions are greatly appreciated

***MKIVSupra*** · 11-22-2003, 11:43 AM

If you had slight det stock why would you add mods? Especailly without getting the reflash done first? I would think modding something that is already detonating would cause it to do it even more.

evoklr · 11-22-2003, 12:29 PM

It's probably not detonation, it's likely the wastegate you're hearing opening up. It takes a while to get used to the sound.

Singletrack · 11-24-2003, 08:01 AM

Quote:

Originally Posted by SILVERABQSTi

I have just installed an invidia down pipe and the car is a lot faster but at 3 grand to redline it sound like a pellet going ape **** in the exhaust and it is already throwing a cel light no reflashed ecu and i got the car in july please help any info greatly appreciated

Do you have a boost gauge? If you are boosting more than stock on the VF39, the intake air charge temp is going to rise. Higher temps = higher chance of det. Just a guess.

-st

JRsti · 11-24-2003, 01:00 PM

Disconnect the battry for 30 minutes. Then make some runs. I had the same proublem. I have a Helix DP and my car did the same thing. After the battery disconnect it did it two more times and it went away. :P

G-shock · 11-24-2003, 01:28 PM

Are you sure you are not confusing "detonation" with "fuel cut"...due to boost creep??

***staticx313*** · 11-24-2003, 08:15 PM

Quote:

Originally Posted by MKIVSupra

If you had slight det stock why would you add mods? Especailly without getting the reflash done first? I would think modding something that is already detonating would cause it to do it even more.

ya thats exactly why i asked... if you have problems and start to mod, you will probably get MORE problems (unless the mod is designed to cure it - engine management and such).

Quote:

Disconnect the battry for 30 minutes. Then make some runs. I had the same proublem. I have a Helix DP and my car did the same thing. After the battery disconnect it did it two more times and it went away.

thats a good idea too , as the Ecu will learn how to fix the problem in some cases (if it ends up being detonation).

Robert~

11-21-2003, 06:09 PM	#1
SILVERABQSTi Junior STI Driver Car: 05 Subaru WRX STi Fav Mod: turbo back Location: new mexico Posts: 72 IWSTI Addict since: Jun 2003 Trader Rating: (0)	I have just installed an invidia down pipe and the car is a lot faster but at 3 grand to redline it sound like a pellet going ape **** in the exhaust and it is already throwing a cel light no reflashed ecu and i got the car in july please help any info greatly appreciated This ad is not endorsed by this member. Please register or login to hide this ad.

11-22-2003, 11:43 AM	#4
*MKIVSupra* Moderator Elite Car: 04 Subaru WRX STi, W Fav Mod: KartBoy SS & Bushings Location: Illinois Posts: 8,746 IWSTI Addict since: Jan 2001 Trader Rating: (0)	pinging If you had slight det stock why would you add mods? Especailly without getting the reflash done first? I would think modding something that is already detonating would cause it to do it even more.

11-24-2003, 01:28 PM	#8
G-shock STI Driver Location: GTYay Posts: 213 IWSTI Addict since: Jul 2003 Trader Rating: (0)	Let us know how the new clutch works out. Are you sure you are not confusing "detonation" with "fuel cut"...due to boost creep??

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11-21-2003, 08:18 PM	#2
*staticx313* Platinum Member Car: 05 Subaru WRX STI CG Fav Mod: 3" FP20G - 403WHP/417WTQ Location: Huntsville, AL Posts: 5,274 IWSTI Addict since: Aug 2003 Trader Rating: (2)	are you sure you're detonating and its not just leakage or rattling... also have you had detonation before... what octane gas. Thanks and Im sure we can come up with something with a little more info. Robert~

11-22-2003, 08:08 AM	#3
SILVERABQSTi Junior STI Driver Car: 05 Subaru WRX STi Fav Mod: turbo back Location: new mexico Posts: 72 IWSTI Addict since: Jun 2003 Trader Rating: (0)	I am running 91 octane had slight det with stock downpipe and i checked to make sure i had no leeks I am going to check and see if it is intake noise since i took out the resonator i hope this is it but we will se i will keep you posted and any other suggestions are greatly appreciated

11-22-2003, 12:29 PM	#5
evoklr STI Driver Posts: 242 IWSTI Addict since: May 2003 Trader Rating: (0)	It's probably not detonation, it's likely the wastegate you're hearing opening up. It takes a while to get used to the sound.

11-24-2003, 01:00 PM	#7
JRsti Senior STI Driver Car: java/black 04 STI Location: Montebello, California Posts: 341 IWSTI Addict since: Nov 2003 Trader Rating: (0)	Disconnect the battry for 30 minutes. Then make some runs. I had the same proublem. I have a Helix DP and my car did the same thing. After the battery disconnect it did it two more times and it went away. :P