Turbo Troubles.
- Thread starter the baPhoon
- Start date
syclone1100
RUNNIN AND SELLIN
Re: Turbo Troubles.
I had a similar prob... check for a leak along the turbo hoses any type of leak will cause loss of boost.. I had a slit in the TB hose and I didnt know it for a while I could only get 3LBS of boost so I did a pressure test and found the leak, fixed the hose now I get full boost. check the hoses especially if your blowing off vacuum hoses....
I had a similar prob... check for a leak along the turbo hoses any type of leak will cause loss of boost.. I had a slit in the TB hose and I didnt know it for a while I could only get 3LBS of boost so I did a pressure test and found the leak, fixed the hose now I get full boost. check the hoses especially if your blowing off vacuum hoses....
QUICK STORM
B.A.M.F. BMW Tech
Re: Turbo Troubles.
zip tie all the lines
zip tie all the lines
willyson
trollin'
Re: Turbo Troubles.
i am having the same problem of only producing 5lbs of boost on an aftermarket gauge. I had my vac lines checked and they are fine. My boost solenoid is connected and working. I recently intstalled 3 bar map and ultimate - still producing only 5lbs. wastegate rod has been adjusted but no significant change. i had the wastegate looked at and it is opening/closing as it should. i can hear the turbo spooling when i let off the acceleration. any suggestions to why boost is so low?
i am having the same problem of only producing 5lbs of boost on an aftermarket gauge. I had my vac lines checked and they are fine. My boost solenoid is connected and working. I recently intstalled 3 bar map and ultimate - still producing only 5lbs. wastegate rod has been adjusted but no significant change. i had the wastegate looked at and it is opening/closing as it should. i can hear the turbo spooling when i let off the acceleration. any suggestions to why boost is so low?
syclone1100
RUNNIN AND SELLIN
Re: Turbo Troubles.
My quess is you have a leak some where, that sounds like the exact same problem I had... Find a place that can do a pressure check and look for leaks your bound to find at least 1, then make sure all your hoses and transition hoses are tightened down really good!!!!
willyson said:
My quess is you have a leak some where, that sounds like the exact same problem I had... Find a place that can do a pressure check and look for leaks your bound to find at least 1, then make sure all your hoses and transition hoses are tightened down really good!!!!
the baPhoon
Active member
Re: Turbo Troubles.
Like PPI suggested to me, yank out the boost controll solonoid and check it for continuity on a fluke. I went through all the motions with the vaccume leak check and all that, and it turned out to be a 28 dollar fix
Like PPI suggested to me, yank out the boost controll solonoid and check it for continuity on a fluke. I went through all the motions with the vaccume leak check and all that, and it turned out to be a 28 dollar fix
the baPhoon
Active member
Re: Turbo Troubles.
basically. Id just start with the solonoid as its the easiest to check with 1 bolt and a fluke or similar multimeter. OR you can do what i was suggested to do and pop the right vac line of the solonoid and take the truck out for a CAREFULL run to see if you can get higher boost numbers. I say be carefull because i dont want to see any blown turbos here. My shiznite when i did that wound up HIGH quick so keep a watchfull eye on your boost gauge/rpm.
basically. Id just start with the solonoid as its the easiest to check with 1 bolt and a fluke or similar multimeter. OR you can do what i was suggested to do and pop the right vac line of the solonoid and take the truck out for a CAREFULL run to see if you can get higher boost numbers. I say be carefull because i dont want to see any blown turbos here. My shiznite when i did that wound up HIGH quick so keep a watchfull eye on your boost gauge/rpm.
LandryPoole
New member
Re: Turbo Troubles.
Hello, I agree with the above mentioned boost guage, as well, the wastegate may need to be adjusted as well. Further, those are not vacuum lines, but boost pressure lines, jfyi. I'd unplug the battery to reset the ecm, then drive it a few miles, apply some boost, and then try it again. My stock boost guage seems to be pretty accurate, while others complain theirs isn't. Mine seems to be right on the money. Lucky me I suppose. Not that I'd every trust it. Anyhow, you may have a bad solonoid. If the solonoid stops working, or it unpluged, or it looses signal to it/from it, then you will only get 8psi of boost.
Hello, I agree with the above mentioned boost guage, as well, the wastegate may need to be adjusted as well. Further, those are not vacuum lines, but boost pressure lines, jfyi. I'd unplug the battery to reset the ecm, then drive it a few miles, apply some boost, and then try it again. My stock boost guage seems to be pretty accurate, while others complain theirs isn't. Mine seems to be right on the money. Lucky me I suppose. Not that I'd every trust it. Anyhow, you may have a bad solonoid. If the solonoid stops working, or it unpluged, or it looses signal to it/from it, then you will only get 8psi of boost.