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Old 09-15-2017, 04:50 PM   #2176
Tankismyname
Scooby Newbie
 
Member#: 331679
Join Date: Sep 2012
Chapter/Region: NWIC
Location: Tacoma, WA
Vehicle:
2013 WRX Hatch
Dark Gray Metallic

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So I may have just had my first breakdown of my WRX and it sounds similar to some of the videos posted on here.

Was driving to work, normal freeway acceleration speed, noticed my access port showed a -7.4 feedback/knock reading. Then began to hear a rattling sound from the front of the car between 1800-2700 rpm. I got to work, did some research and it sounded more like the heat shield rattle than anything else. Scheduled an appointment to have it removed, then drove home after work. Noticed the car was rattling a bit more noticeable and my feedback/knock was popping up pretty frequently, including a spike at -11.2. Got off the freeway immediately and noticed the car was having a terrible time getting up to about 35mph and then it died. Won't start. Dead.

I owe nearly $19k on this car still and am out of the warranty period.

Wish me luck....

2013 WRX
69k miles
Accessport Stage 1 91 octane map (uninstalled after pulling over)

Throwing codes p01111 Intake air temperature sensor circuit range/performance problem

and p01112 Intake air temperature sensor circuit low input
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Old 09-15-2017, 06:26 PM   #2177
point78
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Member#: 344329
Join Date: Jan 2013
Location: Summit County
Vehicle:
2008 Wrx, 6mt

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Hopefully it's just your Maf sensor unit.

(Maybe go spray it off)
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Old 09-15-2017, 06:32 PM   #2178
Tankismyname
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Join Date: Sep 2012
Chapter/Region: NWIC
Location: Tacoma, WA
Vehicle:
2013 WRX Hatch
Dark Gray Metallic

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Quote:
Originally Posted by point78 View Post
Hopefully it's just your Maf sensor unit.

(Maybe go spray it off)
Funny you mention that. I was having issues with mid rpm lagging a while back and told Subaru about it during my 60k maintenance. They couldn't replicate it and sent me on my way after I paid the $1200 bill.

2 weeks ago I took my car to a local shop that distributes Cobb parts. Their owner couldn't replicate it either but cleaned off the MAF sensor after he noticed it was filthy.

I'm no car expert but I don't think a MAF sensor would cause the clunking/knocking sounds. Right? Also car will not start, doesn't even turn over. Waiting for a tow truck to take me and it to Subaru. I knew I should have traded it in 2 weeks ago.
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Old 09-16-2017, 10:38 PM   #2179
danger1138
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Location: QUEENS NY
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04 rex luger!

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Quote:
Originally Posted by Tankismyname View Post
Funny you mention that. I was having issues with mid rpm lagging a while back and told Subaru about it during my 60k maintenance. They couldn't replicate it and sent me on my way after I paid the $1200 bill.



2 weeks ago I took my car to a local shop that distributes Cobb parts. Their owner couldn't replicate it either but cleaned off the MAF sensor after he noticed it was filthy.



I'm no car expert but I don't think a MAF sensor would cause the clunking/knocking sounds. Right? Also car will not start, doesn't even turn over. Waiting for a tow truck to take me and it to Subaru. I knew I should have traded it in 2 weeks ago.


100% correct. A dirty maf sensor will not cause your car to make the noises you described before.
What you described before is a mechanical issue & there is no coming back from that unless you tear it down and rebuild or buy a new block.
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Old 09-16-2017, 10:41 PM   #2180
Tankismyname
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Member#: 331679
Join Date: Sep 2012
Chapter/Region: NWIC
Location: Tacoma, WA
Vehicle:
2013 WRX Hatch
Dark Gray Metallic

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Quote:
Originally Posted by danger1138 View Post
100% correct. A dirty maf sensor will not cause your car to make the noises you described before.
What you described before is a mechanical issue & there is no coming back from that unless you tear it down and rebuild or buy a new block.


Yeah ended up being a spun bearing and total engine failure. Add me to the list.
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Old 09-21-2017, 07:10 PM   #2181
bxyoung
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I purchased a 2008 XT with an STI 6speed swap in September of 2016. The previous owner had just put a new motor with forged internals 6 months before selling it. After driving the car for about 2k miles I brought it to my local shop for an oil change. After the oil change the shop started the car for the first time and to my horror, terrible terrible knock. Diagnosed as rod bearing.

New rallispec short block installed in September and we're back in business. Until it turned into a crop duster this May. Just got the diagnosis today as ringland failure on piston #3 and #4.

My 2008 XT automatic has all the same mods (turbo, downpipe, injectors, etc etc) running on a stock motor for the past 6 years.

What gives? Am I a terrible manual driver? Am I just having bad luck? Bad tune?

EDIT: Yes it took my shop over 4 months to diagnose the problem.
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