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Old 01-16-2012, 03:32 AM   #1
RISubieRex
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Unhappy Bad Idle After Replacing TGV Driver Side

New here, appreciate all help!

Just replaced my driver side Tumble Generator Valve (TGV) as well as the actuator and sensor. I removed my top mount intercooler, air intake, and my intake manifold to do this as well as my fuel injector and fuel rail. After everything was put back in these were the results.

-Car leaked gasoline from the injectors due to faulty o-ring seals
^^Replaced that

Car Idles like complete CRAP. Idles at 1000RPM and shakes Rough.

Car never idled nowhere near this bad before the installation and I am throwing misfire codes as well P1086 TGV Circuit Low Input

Checked almost everything has far as vacuum leaks or lose hoses, 12 hours into this nightmare im thinking about breaking in and bringing it to a dealer

Any ideas? ILL LOVE YOU FOREVER
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Old 01-16-2012, 03:34 AM   #2
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Also the car sometimes stalls when I start it if I don't give it some gas.
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Old 01-16-2012, 09:20 AM   #3
quazimoto
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Did you put the TGV position sensor on correctly? You need to preload the spring inside.
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Old 01-16-2012, 09:29 AM   #4
Dirty25RS
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http://forums.nasioc.com/forums/show...ighlight=p2021

I just did this on a Saabaru last night.

The sensor needs to be preloaded as quazimoto said.

To preload the spring you need to attach the sensor to the peg on the end of the TGV axle WITH THE ELECTRICAL CONNECTOR FACING UP then rotate a little greater than 90 degrees clockwise untill its in its position to be bolted down. Then screw it down and plug it back in.

It seems like if that sensor isn't working, the TGVs stay closed all the time. If the TGVs stay closed all the time that bank doesn't get any air or fuel.

Since your primary O2 is on the other bank, it never makes any AFR corrections based on it as it doesn't realize this. If you take this to its natural conclusion you get tons of #2 and #4 misfires, can't build full boost. Car feels slow, sounds funny, won't idle, etc.
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Old 01-16-2012, 09:49 AM   #5
RISubieRex
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Ahh did nothing of the sort, I am on my way to work now I'm going to try it and when we say sensor we aren't referring to the actuator correct?
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Old 01-16-2012, 09:53 AM   #6
Dirty25RS
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I am referring to the sensor correct. the thing on the front.

not the actuator, the thing on the back.
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Old 01-16-2012, 02:34 PM   #7
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Trying it out now thanks for the advice
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Old 01-16-2012, 02:54 PM   #8
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Ok so, I put the connector facing up as I'm winding the spring on the sensors it stops before I bolt it in, the tab on the tgv doesn't turn a full 90 degrees
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Old 01-16-2012, 02:59 PM   #9
Dirty25RS
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It did on the EJ205 I was working on last night.

I had to remove a bolt at about 5 o'clock relative to the TGV axle to get a full 90 degree turn out of it.
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Old 01-16-2012, 03:03 PM   #10
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Nevermind got it putting everything back together
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Old 01-16-2012, 03:07 PM   #11
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nice!
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Old 01-16-2012, 03:12 PM   #12
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Get rid of them and do deletes lol.
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Old 01-16-2012, 03:45 PM   #13
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Tried it twice still getting a ridiculously crappy idle
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Old 01-16-2012, 04:56 PM   #14
Dirty25RS
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probably boost leak test time then.
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Old 01-16-2012, 05:38 PM   #15
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Probably but I never had this problem problem prior changing the tgv I have no power and it doesn't rev past 4000 it also sounds very quiet like almost a clogged cat it felt like it was starving for fuel it would sometime bogg down
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Old 01-17-2012, 08:14 AM   #16
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Probably because the TGV is stuck closed.
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Old 10-10-2012, 05:14 AM   #17
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Did u get this problem resolved? Maybe u accidentally pulled out the connectors to one of the coil Packs. I know that has happened o me several times .
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Old 10-10-2012, 06:07 AM   #18
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tgv gasket to head has a leak..take a spray bottle and spray
around the base if tgvs. if the spray gets sucked in..leak..
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Old 10-10-2012, 07:50 AM   #19
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This thread is from January.............
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