boost creep problem

[Syclone#2960]

My truck is creeping to 20psi with the setting on T1-16.I replaced all the rubber elbows connectors with new ones,I even placed a magnaflow muffler back on in case it was a bad cat.
I extended the wastegate arm by 3 turns and the boost stil crept but this time it felt like it was starving for fuel or something past 10psi.So I shortened it 2 turns and still no change.WTF?

Should I order a new actuator from ATR?Boost control solenoid? :ndrugs::
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Ipad cases

 

[leroy]

I'd try some silicone hose to replace those crispy plastic ones first. Maybe one of those has a crack.

Good luck.

Jim

 

[Syclone#2960]

BC solenoid

BC solenoid

I got the silcone hoses today from Ian they look great.I have not put them in yet.I disconnected the BC solenoid to see what it would read on the boost gauge.It maxes out @ 8psi.

So does this meen the BC solenoid might be bad and it is prob... a vac leak ? ::hang::
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Ferrari 512

 

[Syclone#2960]

I found a cracked vac line closest to the firewall and replced all the line with silicone ones.Truck is running better but is still boost creeping to 19psi on t1-16 setting while shifting.I am having to let off a tad on the pedal when I am at WOT.What are my options now?

Thanks for the help guys. :fadein:

later,

Bruce
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Outdoor Bondage

 

[Syclone#2960]

I replaced the Boost Control Shitnoid :x This did not fix the problem.I plugged on the Xray scanner and it should a max of 71% wategate duty@ WOT when it is over boosting.How low should this % # be? Should it be going down to something like 40-50%?

I would hate to waste $120 on a new wastegate actuator. :grab:
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MARIJUANA VAPORIZER

 

[Sy769]

If the truck has good boost control on base boost then the actuator is probably good. I'd try a grainger type valve. control is much better with only 1.5 psi spikes at the shift.

 

[100in6]

i have a very good wastegate actuator used if you end up wanting to try another one and save a few bucks

 

[Syclone#2960]

If the truck has good boost control on base boost then the actuator is probably good. I'd try a grainger type valve. control is much better with only 1.5 psi spikes at the shift.

Thanks for the feed back Patrick.I will try a grainer type valve and post what is the outcome to help other with the info.What about that $39 unit ATr sells?
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LovelyWendie99

 

[kwick6]

ditch the stock POS turbo

 

[Syclone#2960]

ditch the stock POS turbo

I would if I had $1600 :fist:
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THE CIGAR BOSS

 

[kwick6]

ditch the stock POS turbo

I would if I had $1600 :fist:

for 1600 you could buy 3 20g's :Fade-color

 

[Syclone#2960]

How would a 20g rated @ 650cfm compared to the stock 550 cfm solve my boost problem? :roll:
$1600 would buy me a PTE turbo kit. :splat:
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couple Cam

 

[Syclone#2960]

OK I installed a better condition waste gate actuator (36k miles).Still creeping to 20psi on t1-16 setting.

I guess I will try a grainerr type valve now. :drinking:
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Herbal vaporizer

 

[Syclone#2960]

I installed a "check Vavle" today and it is not helping any.I do not know if I installed it right though.

I placed it between the BC solenoid and wastegate actuator line.With the ball spring pushing towards the BCS.Did I install this right?
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Anice

 

[Syclone#2960]

Porting stock wastegate and enlarging flapper valve

Porting stock wastegate and enlarging flapper valve

Well I replaced the motor mounts and ported out the turbo mismatch some more this time hitting the wastegate port some more.The boost is still creeping to 19-20psi on T1-16 setting.
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Steaming Food

 

[Syclone#2960]

HAH, I finally fixed the boost creep problem.I was messing around with the tv cable and loosen the adjustment to give it a smoother shift.I then test drove it and the boost spiked to 20 on T1-16
Then I tightened the cable as far as I could and it holds boost perfect even on T2-20 setting
Maybe this will help those who are having the same problem.
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How to use soldering iron vaporizer

 

[Andreas]

Messing with the TV cable corrected your boost problem?
So you just slightly changed the shift points?

 

[Syclone#2960]

Yes it did, made a huge diiference in boost control
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MERCEDES-BENZ W163

 

[Andreas]

hmm....had problems to with boost. But a change of hoses did it for me.
Good that it worked out for you.

More TV-cablehousing to the driverside (standing infront of car) more preasure, right?

 

[Syclone#2960]

Not too sure about the adjustment.I just got rid of any slack in the cable.
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