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Old 09-02-2005, 12:14 PM   #1
gotparts?
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Default pinging in the 04 sti

i just read on motor trend that in there 04 sti that it was pinging (detonating). is this common in the 04 sti? if so what would cure the problem? im kinda new to the subaru. been a mechanic on hondas for the past six years and now going into the subaru thing.

just wondering cause just bought my girl an 04 sti and we really dont wanna blow it up lol
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Old 09-02-2005, 12:46 PM   #2
rich728
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what's the build date?
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Old 09-02-2005, 01:07 PM   #3
gotparts?
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ill post it up in a little bit, but they said there project sti was having pinging problems.
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Old 09-02-2005, 01:10 PM   #4
gotparts?
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motor trend
If the STi were able to reach 60 mph in second gear (good for only about 58 mph), it'd surely beat the MR. However, adding the time to grab third means it's a dead-heat at 4.7 seconds, and the same holds for the quarter mile at 13.3 seconds at 100.1 mph. We've seen previous speeds up to 104.6 mph for an STi quarter mile, but have been told that fresh Subaru engines don't loosen up until they've seen at least 3000 miles on the odo (ours had about 1200). "We've also been told that engineers at Subaru have reflashed the ECU for 2005 to avoid cylinder detonation (pinging), which we've experienced in our long-term 2004 STi. Either way, this STi felt a little slower as compared with others we've tested."

and it wont let me post up the url right now, gotta have ten post, yes i am new to this board.
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Old 09-02-2005, 01:14 PM   #5
powerleak
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do you have 91 or 93 octane standard at the pump?

my 04 sti never had pinged when it was stock.
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Old 09-02-2005, 01:18 PM   #6
gotparts?
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nah nah, my girls car doesnt ping, i was just wondering if it was a common problem in the 04 model sti's. we arent having a pinging problem just wondering if anyone else has problems like that.
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Old 09-02-2005, 01:22 PM   #7
TheMadScientist
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Quote:
Originally Posted by gotparts?
nah nah, my girls car doesnt ping, i was just wondering if it was a common problem in the 04 model sti's. we arent having a pinging problem just wondering if anyone else has problems like that.
It was a problem in the very early USDM Sti's. Subaru put out a reflash to "fix" the problem.

TMS
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Old 09-02-2005, 01:23 PM   #8
gotparts?
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oic, well i guess that'll answer my question. thanks alot for the feed back guys.
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Old 09-02-2005, 01:43 PM   #9
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actually... there are 05s that have the problem too.
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Old 09-02-2005, 03:05 PM   #10
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i have an 04 that was one of the first ones available. But i never put anything less than 93V power in my car and i haven't heard any marbles in my engine bay so i guess it's running great.

i have 20,600 miles on it as of yesterday.

kyle
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Old 09-02-2005, 03:25 PM   #11
essogas
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No pinging... But clunking struts is whole other story... get ready.
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Old 09-03-2005, 12:42 AM   #12
bolio
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Mine runs like new at 23k miles and stock.
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Old 09-03-2005, 04:08 PM   #13
gotparts?
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yeah we got the rear struts replaced by subaru when we first got the car. why do they clunk though? just the design? or is it just a bad part?
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Old 09-03-2005, 06:27 PM   #14
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no ping, no clunk yet
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Old 09-04-2005, 10:09 AM   #15
Ringboy
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I had detonation issues with my '04. It was always WOT between 4500-5000 rpms. I got the Subaru reflash about a year ago...no more det. I have also heard about the '05's doing it.
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Old 09-04-2005, 11:54 PM   #16
coluser
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10/2003 build date never a ping, never a clunk.
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Old 09-07-2005, 09:01 AM   #17
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Quote:
Originally Posted by gotparts?
yeah we got the rear struts replaced by subaru when we first got the car. why do they clunk though? just the design? or is it just a bad part?
Search my friend, there are tons of posts on clunking STi struts.
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Old 09-20-2005, 10:21 PM   #18
EricK
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Picked up a used STi on Friday & noticed heavy pinging in 2 & 3rd gears.Car has 51K on it.Man I hope the engine isnt junk from this.Should this still be covered under powertrain warrenty?
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Old 09-21-2005, 12:13 PM   #19
AndyH
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Quote:
Originally Posted by EricK
Picked up a used STi on Friday & noticed heavy pinging in 2 & 3rd gears.Car has 51K on it.Man I hope the engine isnt junk from this.Should this still be covered under powertrain warrenty?
I would say yes, the reflash to eliminate pinging should be covered even if you're out of warranty.
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