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post #1 of 8 Old 11-24-2012, 12:38 PM Thread Starter
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vgt solenoid bad? Low boost

I can't get over 20 psi of boost at full throttle. Would a bad vat solenoid cause this, or is there maybe something else going on? Thanks for the input in advance!
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post #2 of 8 Old 11-24-2012, 01:59 PM
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I have an 04', I was only getting 19 or so, snd it was lagging. Yesterday I pulled my turbo and cleaned it, much better throttle response, if I dog the chit out of it, I can see 24lb. But it is running up to 20lb consistently. If I hook a load up, i'm sure i'll see close to 26lb, i've seen it once before cleaning at wot. My monitor readings for the vgt% are correct now, much quicker spool up time.

Sent from my phone that somebody didn't help me get.

Unfortunately had to Sell my ......2004 KR CC SWB FX4 - Edge insight cts, blue spring upgrade, updated HFCM drain plug, XDP coolant filter, CAT EC-1 rated coolant, Custom Diesel EGR delete, CAT delete, Rotella T6

SEE MY OIL COOLER REPLACEMENT AND EGR DELETE - http://www.powerstroke.org/forum/gen...tml?highlight=

Last edited by southend; 11-24-2012 at 03:37 PM.
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post #3 of 8 Old 11-24-2012, 02:41 PM Thread Starter
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Are you running a tune?
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post #4 of 8 Old 11-24-2012, 03:36 PM
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Quote:
Originally Posted by silentsoul View Post
Are you running a tune?
No, i'm not, that would probably make a difference.

Sent from my phone that somebody didn't help me get.

Unfortunately had to Sell my ......2004 KR CC SWB FX4 - Edge insight cts, blue spring upgrade, updated HFCM drain plug, XDP coolant filter, CAT EC-1 rated coolant, Custom Diesel EGR delete, CAT delete, Rotella T6

SEE MY OIL COOLER REPLACEMENT AND EGR DELETE - http://www.powerstroke.org/forum/gen...tml?highlight=
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post #5 of 8 Old 11-24-2012, 04:01 PM Thread Starter
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I'm runnin quick trick's looney and still can't get over 20 psi. It just doesn't seem right. Do you think I oughta pull my turbo and clean it?
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post #6 of 8 Old 11-24-2012, 04:26 PM
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Quote:
Originally Posted by silentsoul View Post
I'm runnin quick trick's looney and still can't get over 20 psi. It just doesn't seem right. Do you think I oughta pull my turbo and clean it?
How are you monitoring? I was watching my boost all the time, and the vgt, it was just too laggy for me. It is much better. I'm not sure if your tune is keeping your boost down, i've heard tunes may affect that. It was the first time I pulled a turbo, it wasn't nearly as bad i have read. If you are not sure how long it's been, it msu be worth your while.

Sent from my phone that somebody didn't help me get.

Unfortunately had to Sell my ......2004 KR CC SWB FX4 - Edge insight cts, blue spring upgrade, updated HFCM drain plug, XDP coolant filter, CAT EC-1 rated coolant, Custom Diesel EGR delete, CAT delete, Rotella T6

SEE MY OIL COOLER REPLACEMENT AND EGR DELETE - http://www.powerstroke.org/forum/gen...tml?highlight=
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post #7 of 8 Old 11-25-2012, 11:21 AM Thread Starter
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Quote:
Originally Posted by southend View Post
How are you monitoring? I was watching my boost all the time, and the vgt, it was just too laggy for me. It is much better. I'm not sure if your tune is keeping your boost down, i've heard tunes may affect that. It was the first time I pulled a turbo, it wasn't nearly as bad i have read. If you are not sure how long it's been, it msu be worth your while.

Sent from my phone that somebody didn't help me get.
I am using the data logging on my sct to monitor the boost.
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post #8 of 8 Old 12-05-2012, 06:47 AM
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take it out and clean it... worth your time even if that's not the problem, but it most likely is, unless you have a leak somewhere

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