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Old 07-14-2010, 01:39 PM   #1
minifreak
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Default Good place to have the car tow to?

Something happened to my car and now it can't even idle properly (stutters and then stalls)...

The log says the engine is running lean but I checked as many parts as I could and can't find anything. I am hoping it is not the ringland or the headgasket...

Where is a good and reasonably priced place for me to tow my car to? 5Zigen? Kons? The dealership?

I am located in Richmond.

Here's the stuff I checked/tested:
Changed the engine oil. A bit dark but still looks like oil (it was about time for an oil change anyway).
Pulled the spark plugs and all looks dry and not too dark/white.
Pulled the TMIC, there was some oil in the piping but not that much I think.
The coolant looks green still, but with the expansion tank cap open it would bubble up when I first start the engine.
Disconnected the MAF sensor and still the same thing.
Disconnected the front O2 and still the same thing.
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Old 07-14-2010, 01:57 PM   #2
Linkseal
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To 5 Zigen... PM him about the shop address and cell.
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Old 07-14-2010, 02:05 PM   #3
iht
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reset ecu?
take of turbo intake and check to see if the turbo bearings aren't blown?
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Old 07-14-2010, 02:55 PM   #4
Linkseal
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might be a defective idler... if other parts are tight and no leak...how does your fuel pressure look like?
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Old 07-14-2010, 03:27 PM   #5
alcoolaid
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fuel pump?
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Old 07-14-2010, 03:49 PM   #6
Penphoe
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Quote:
Originally Posted by minifreak View Post
Where is a good and reasonably priced place for me to tow my car to? 5Zigen? Kons? The dealership?

I am located in Richmond.

Dealership will always be $$$.

For flatbed towing, you're probably looking between $75-100 to get it towed. Best to call around and get a quote for a flatbed.

LaterZ!
Darren!!
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Old 07-14-2010, 07:10 PM   #7
5 Zigen
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is there fuel pressure? how much fuel you got in your tank? does the engine start, run, then stall? no DTC? only says it's running too lean?

what have been done to it recently? has it been running well or it has started to run poorly last couple days? if you have tried to start the car few times, no luck (all ended up stalling) and you said you pull out the plugs and they look just like normal, that's already not really normal?! especially when you said it looks DRY!
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Old 07-14-2010, 07:43 PM   #8
brumue
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Not sure about the WRX, but on our Imprezza one coil pack died suddenly giving the same symptoms. I'll keep my fingers crossed for you.
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Old 07-14-2010, 08:35 PM   #9
5 Zigen
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WRX is individual coil
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Old 07-14-2010, 09:17 PM   #10
minifreak
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Quote:
Originally Posted by 5 Zigen View Post
is there fuel pressure? how much fuel you got in your tank? does the engine start, run, then stall? no DTC? only says it's running too lean?

what have been done to it recently? has it been running well or it has started to run poorly last couple days? if you have tried to start the car few times, no luck (all ended up stalling) and you said you pull out the plugs and they look just like normal, that's already not really normal?! especially when you said it looks DRY!
Not sure how much fuel pressure is as I don't have a fuel pressure gauge. The ECU is showing the fuel pump working at 33% duty cycle.

The only CEL I got was the P0171 System too Lean, no misfire.

Yeah, I wondered why the plugs looks dry, so perhaps the fuel pump or an injector is gone.

I am curious as to if a dying alternator/battery could cause issues like this. Hopefully I'll find out soon.
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Old 07-14-2010, 10:00 PM   #11
Loomin
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Quote:
Originally Posted by minifreak View Post
I am curious as to if a dying alternator/battery could cause issues like this. Hopefully I'll find out soon.


not likely. if it has enough power to crank over and kinda start, it has enough power to run the engine. could also be a valve issue if you belt somehow lost tension and skipped a tooth.

sounds like low compression to me.

do a compression test. if the rings are shot or the ringlands cracked, or somehow the valves became slightly "bent" this will show it

the turbo would have nothing to do with it unless its broken in half and causing a huge vacuum leak. even if that were the case, unplugging the maf would atleast let it kind of idle.
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Old 07-14-2010, 11:36 PM   #12
mcwc
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I had a similar problem. I've replaced the spark plugs, coil packs, one bank of injectors, cleaned the MAF, cleaned the IACV, and searched for potential vacuum leaks to fix the issue. Later, the front O2 got changed and that smoothed out the idle even though no code was thrown for it.

I have no idea what fixed it but each fix accumulated to a working car. The easiest and cheapest would be cleaning the MAF. IIRC, DBW cars don't have an IACV. Also, try to spray some contact cleaner into the fuel injector connector that plugs into the main harness.
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Old 07-15-2010, 12:18 AM   #13
5 Zigen
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and if you are going to do compression test, leakdown test is very important too...

front O2 sensor is an air fuel ratio sensor, and yes it does make the car run a lot better especially if it has codes.
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Old 07-16-2010, 02:55 AM   #14
Loomin
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Quote:
Originally Posted by 5 Zigen View Post
and if you are going to do compression test, leakdown test is very important too...

front O2 sensor is an air fuel ratio sensor, and yes it does make the car run a lot better especially if it has codes.
good point! compression/leakdown test is much cheaper than randomly replacing parts it might or might not be as well.
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Old 07-16-2010, 03:34 AM   #15
5 Zigen
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Quote:
Originally Posted by Loomin View Post
good point! compression/leakdown test is much cheaper than randomly replacing parts it might or might not be as well.
if the car has good compression and leakdown result, then check for fuel pressure etc, i am sure someone will have a stock fuel pump u can try? the car wouldn't just die itself, and when u said unplug MAF doesn't do any diff, that's already not "normal" (usually it should make some diff, better or worse)...u dun really need O2 to "run" the car, the car should idle and won't stall...
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Old 07-23-2010, 08:47 PM   #16
minifreak
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Update:

After some trouble shooting we eventually found out that the O-ring on the in-tank fuel filter is gone. I now have it by-passed and had an external fuel filter installed in the engine bay like the older style Impreza's.

A 2 dollar part caused my car to be down for a week...
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Old 07-24-2010, 05:27 AM   #17
dasnowman
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Quote:
Originally Posted by minifreak View Post
Update:

After some trouble shooting we eventually found out that the O-ring on the in-tank fuel filter is gone. I now have it by-passed and had an external fuel filter installed in the engine bay like the older style Impreza's.

A 2 dollar part caused my car to be down for a week...

I would get the injectors clean and flow tested where did the O ring end up.... what dirt etc might have ended up into the system.?
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Old 07-25-2010, 02:55 PM   #18
minifreak
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The o-ring was still in one piece, and the way it failed means any fuel that made it to the front of the car still has to pass through the filter.



The car still drives strong and holds good vacuum, but I'll get a compression test done on it just for a piece of mind. I have been pretty lucky with this instance, got a deal on a flatbed towing, Kon barely charge me anything for all the diagnostics he did and the car runs fine once the filter issue is fixed

+1 to Kon Auto on Venables, I plan on taking my car there in a few weeks to have the timing belt done

Last edited by minifreak; 07-25-2010 at 03:00 PM.
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Old 07-25-2010, 04:32 PM   #19
steve
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good to hear johnson.
That's such a painful issue to have diagnosed. Glad to see it's done.
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