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07-02-2009, 02:05 PM | #1 |
Scooby Newbie
Member#: 141949
Join Date: Feb 2007
Chapter/Region:
TXIC
Location: Killeen, TX
Vehicle:2004 Wrx JBP |
TGV codes and misfire code upon start up
About 2 weeks ago I got a #4 cylinder misfire so I switched coil packs. Couple days later..... #4 cylinder misfire. So then I just switch sparks plugs from #4 and #2. Then.... another solid check engine light. But now the codes are: P0301 Cylinder 1 misfire detected, P1090 Tumble generator valve #1 (RH) malfunction (stuck open), P1092 Tumble generator valve #2 (LH) malfunction (stuck open), P1097 Tumble generator valve circuit #2 (overcurrent)...... Now what???!!!???? The car runs fine after warm up..... Each time I got the check engine light it was only during start up, none while actually driving. When I start it up, it idles rough for about a minute then smooths out the rest of the time. About 5 days ago, I start up and no check engine light. The codes just disappeared. Then a day or 2 passes, then the light comes back on (on start up), stays for a couple days, then today I start up, no light. I thought once the light comes on, it will stay until the problem was fixed or I had it cleared. WTF
I have a set of tgv motors and sensors on the way, so those will be getting replaced. Hopefully the motors are just going bad. My thoughts are when I drive, park, and go to shut the car off, the tgv's don't close, so when I start up they are already open, hence the misfire and tgv codes for them being stuck open. What else do you guys think could be the problem if the new sensors/motors don't fix it?
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07-03-2009, 10:41 AM | #2 |
Scooby Specialist
Member#: 80465
Join Date: Jan 2005
Chapter/Region:
RMIC
Location: Denver
Vehicle:2001 2.5RS Black Diamond Pearl |
That sounds about right for the cause of your issue. You can always try cleaning things, I can't tell you how many times just a simple cleaning has cleared up electrical issues.
And you thought wrong about the ECU codes. When the ecu detects something wrong, it will throw the code, but after a while ( I forget, maybe a couple of driving cycles) if the problem is gone, the cel will go off. The code may still be stored, but it won't be "active". |
07-03-2009, 05:16 PM | #3 |
*** Banned ***
Member#: 16200
Join Date: Mar 2002
Vehicle:OK buy Nates beans westcoastroasting.com |
sounds like a tgv is sticking or isnt plugged in properly
try unplugging re-plugging them |
07-03-2009, 05:27 PM | #4 | |
Scooby Newbie
Member#: 141949
Join Date: Feb 2007
Chapter/Region:
TXIC
Location: Killeen, TX
Vehicle:2004 Wrx JBP |
Quote:
Thanks, I'll try that. The new motors/sensors should be here by the 9th so that gives me time to see if this re-plugging will work |
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