The Top DSM Community on the Web

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. Log in to remove most ads.

Please Support RTM Racing
Please Support ExtremePSI

Turbo not spooling no bov sound

This site may earn a commission from merchant
affiliate links, including eBay, Amazon, and others.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

RayBan GST

15+ Year Contributor
665
4
Oct 21, 2007
DUBAI UAE, Asia
hi all,

well i am now trying to help a friend so this i snot my car i am talking about:

here is whats happening , there is no sound of spooling and car feels like its not turbo its 96 eclipse gst JDM

we thought that the t25 is the problem so we installed another one ( still same problem)
we checked for boost leaks and made a BLT and found zero leaks
we changed spark plugs and filter and put NGK gapped at 0.28
we changed the BOV to greedy with recurculation tube ( NO LEAKS)
we have made so many BLT test with zero leaks
we have changed the injectors O RINGs
we have checked for exhaust manifold leak ( zero)
we have checked for exhuast filter if its clogged also ( it was clogged but we fixed it)
we have changed the MAF sensor
we have changed the spark tension wires
we have changed all the old pipes and made another boost leak test ( still no leaks and it can hold up to 14 psi)



all the gaskets on the turbo were changed NO LEAKS we changed the turbo in the end to 16G ( BRAND NEW) just got it a week ago with the J PIPE

we have redone the timing belt and the base timing to read 5 degrees now


but still nothing seems to solve the problem , please help us here we can not hear the turbo spooling and there is no power maximum PSI we can see on the aftermarket gauge is 6 psi( gauge is connected correctly) i have checked the arm of the wastegate and its good this is the third turbo guys and nothing is happening :confused::confused::confused:


before i forgot also we have changed the BISS screw with new one and new O ring

we have done a compression test and we got these numbers 172 172 170 160 across the line


what is left to check please let us know
 
So your upper intercooler pipe swells when you rev the engine..

What does your boost gauge read when you get on the gas?

:hmm:

What does your car drive like when you remove the WGA arm, and have the WG full open?
 
Did you ever try running it straight off of the downpipe?

what do you mean? can you please explain more

as i mentioned iam reading max 6 psi its 16g guys :confused::confused:

Unbolt your exhaust from your o2 housing and run it again.
 
Dam my cars doing the samething, My boost gauge goes to about 6 vac when I snap it and no boost is made. But when I feel the intercooler hose I feel a little boost coming out. I pertty sure it's the actuator because it won't move when I rev it. I took it off to check the door to make sure it opens, It's fine but the actuator is very hard to pull the bar out. It should move in and out eazy right. please can so one tell me how it should be.
 
Hi guys

I hope you can help to sort my problem as I am RAYBAN'S FRIEND. I have installed just now my walbro 190lph fuel pump and it seems there's no difference.

I have recalled 5 months ago when i bought this car . my mechanic installed a new IC he accidentally not tighten one pipe thus it was pulled off when i am driving. thick black smoke comes into my exhaust and off course the car is dying. as I am in dangerous spot that time i have forced the issue to still run the car and reaches at least 1km before i shut the car and call for a towing truck. after that day it was reinstalled by my mechanic.

but still i don't know if that time before that incident if i am boosting well as I dont drive fast and since this is the first time that i owned a turbo charged car. after that when I met my friend he told me that my turbo is not working.

note: i am 100% sure that when I bought this car the turbo is working.

pls help me guys:pray::cry:
 
Idk what all has been mentioned but do a BLT and check the exhaust. Even if the butterflies werent opening his Manifold Pressure would still show boost on his gauge. The most common issues are inoperative Wastegate, obstructed exhaust, boost leak, pre-turbo exhaust leak and very rarely but the exducer wheel being damaged or melted.
 
thanks rush.. nway in my wastegate actuator there is an adjustment in its rod. can I play with that. i am thinking maybe my wastegate is not opening properly. if it is allowed to adjust this. do you think the rod should be shorter all longer.
 
if the car isnt building enough boost then it needs to be shortened. Im assuming this is a chinabay turbo? They are usually the only ones with an adjustable WGA arm. You can check the WGA by running compressed air into the nipple. If you have a gauge with a regulator you can set the amount of air being pumped into the WGA and get an idea of how much it takes for the WGA to begin moving. Keep in mind this wont = desired boost as you also have exhaust pressure pushing against the flapper while the car is running, but you get the idea.

If shortening the WGA doesnt help I would pull the exhaust loose from the o2 housing and take it for a short drive and see if that helps, if youve done all of the above and still nothing then pull the o2 housing and make sure the exhaust wheel isnt mutulated or missing.
 
Quick question... is this a Mitsubishi 16g or an e-bay turbo? The arm of the WG should be pulled inside the actuator. There should be no movement unless the car is on and making the turbo work. the only way that the car will not be making any boost after you checked and rechecked every thing is that the WG arm is not adjusted properly and the flaper is stuck open partly.
 
thanks again. anyhow do you have any idea what are the parts in my car that can be damaged by the accidental pull off of one of my IC pipes. as i continue driving it for at least a 1km. black smoke si coming out that time

Quick question... is this a Mitsubishi 16g or an e-bay turbo? The arm of the WG should be pulled inside the actuator. There should be no movement unless the car is on and making the turbo work. the only way that the car will not be making any boost after you checked and rechecked every thing is that the WG arm is not adjusted properly and the flaper is stuck open partly.

it comes from ebay. I don't have any intention to race as i have told before I am not pumping my car to the limits. I just want the power to be back. thnx
 
So is the actuator rod should move eazy by hand right?? I'm still trying to find out if my is shot or ok.
 
I would pull the exhaust loose from the o2 housing and take it for a short drive and see if that helps, if youve done all of the above and still nothing then pull the o2 housing and make sure the exhaust wheel isnt mutulated or missing.


we will do that and report back

Thanks rush
 
if its blowing black smoke Id say its running rich. If the IC popped off it should damage anything once the hose is reattached it should be fine. and to the guy who keeps asking the question about the WGA arm NO it shouldnt move freely it should have tension on it.
 
RUSH YOU ARE THE MAN


thank you very very much

we have pulled the exhaust loose from the o2 housing and took it for a drive and guess what ...........:hellyeah::hellyeah:

the car is Boosting again WOW now we will just clean and fix this and we will be good as gold again


:hellyeah::hellyeah:

thx again
 
if the car isnt building enough boost then it needs to be shortened. Im assuming this is a chinabay turbo? They are usually the only ones with an adjustable WGA arm. You can check the WGA by running compressed air into the nipple. If you have a gauge with a regulator you can set the amount of air being pumped into the WGA and get an idea of how much it takes for the WGA to begin moving. Keep in mind this wont = desired boost as you also have exhaust pressure pushing against the flapper while the car is running, but you get the idea.

If shortening the WGA doesnt help I would pull the exhaust loose from the o2 housing and take it for a short drive and see if that helps, if youve done all of the above and still nothing then pull the o2 housing and make sure the exhaust wheel isnt mutulated or missing.


Idk what all has been mentioned but do a BLT and check the exhaust. Even if the butterflies werent opening his Manifold Pressure would still show boost on his gauge. The most common issues are inoperative Wastegate, obstructed exhaust, boost leak, pre-turbo exhaust leak and very rarely but the exducer wheel being damaged or melted.

Unbolt your exhaust from your o2 housing and run it again.

He said he checked exhaust filter and im assuming that means the cat.

You never answered the melted cat question. Ive seen three other threads like this where plugged exhaust was the problem.

Melted cat maybe? Is your friend running aftermarket fuel injectors?

RUSH YOU ARE THE MAN


thank you very very much

we have pulled the exhaust loose from the o2 housing and took it for a drive and guess what ...........:hellyeah::hellyeah:

the car is Boosting again WOW now we will just clean and fix this and we will be good as gold again


:hellyeah::hellyeah:

thx again

:ohdamn:
 
Support Vendors who Support the DSM Community
Boosted Fabrication ECM Tuning ExtremePSI Fuel Injector Clinic Innovation Products Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications MyMitsubishiStore.com RixRacing RockAuto RTM Racing STM Tuned

Latest posts

Build Thread Updates

Vendor Updates

Latest Classifieds

Back
Top