New turbo is in! Some questions

[vwGLI]

The new turbo is in! My car is running better than before my turbo went. I now have 20-21hg vaccuum. Smoother idle.

Only problems:

1. When i boost, it only gets up to about 6-7.5 lbs. I am tuned and used to hit 20 lbs. Is my ecu fried? safe mode? (i thought safe mode was only 5lbs boost)

2. Is it the turbo breaking in? How easy should i be going on it?

3. My diverter valve is fluttering, but it is all attached to it correctly. Could this be causing the low boost? (havent had a chance to put in my splitter valve i usually run)

Thanks everyone.

[Shameless]

Fuel map might need to re-allot itself to the new numbers of air coming in, opposed to with a broken turbo.

I'd let the bearing break in for at least 500 miles before you stomp on it.

[Pssst...passed you]

DV could be releaseing early and casuing low boost. I presume you are still running an N75 valve and MAF file right?

Take it easy for about 500-1000 and put the splitter in and see if the ECU adjusts everything properly with new air/fuel measures it is seeing like he said ^^^.

takes about 8 full duty sycles normally for the ECU to adjust everything.

[rodgertherabit]

The turbo doesn't have to break in. Its a hournal bearing, jus needs proper clearances and won't cause low boost.

I would suspect its the wastegate setting since its a no name turbo but as long as the n75 is plumbed right it should be good

Unplug your battery/reset your fuel trims and see what happens. Lack of fuel won't cause low boost. It will just run lean

Other than that I'd say you have a leak somewhere.

[Sales@Unitronic]

I assume you did an OEM replacement with the turbo? Few things to check: I would make sure there are no boost leaks as this is what it sounds like. Do you spike to 20+ psi and then fall to 6-7PSI or does it never reach the original levels?

If you want to run some logs with your Vagcom this would clear things up pretty quickly. Log Channel 114 and 115 which are specified + actual boost. If the requested boost is your usual level and the actual boost is only 6-7PSI as you stated, chances are its a boost leak.

[vwGLI]

Originally Posted by Shameless

Fuel map might need to re-allot itself to the new numbers of air coming in, opposed to with a broken turbo.

I'd let the bearing break in for at least 500 miles before you stomp on it.

yeah, part of me thinks its just adjusting. but its running like absolute shit like it did before minus the oil shooting out of the exhaust. almost stalling, sporadic idle.

Originally Posted by Pssst...passed you

DV could be releaseing early and casuing low boost. I presume you are still running an N75 valve and MAF file right?

Take it easy for about 500-1000 and put the splitter in and see if the ECU adjusts everything properly with new air/fuel measures it is seeing like he said ^^^.

takes about 8 full duty sycles normally for the ECU to adjust everything.

im going to put the splitter valve in, stock diverter valve was fluttering.

Originally Posted by rodgertherabit

The turbo doesn't have to break in. Its a hournal bearing, jus needs proper clearances and won't cause low boost.

I would suspect its the wastegate setting since its a no name turbo but as long as the n75 is plumbed right it should be good

Unplug your battery/reset your fuel trims and see what happens. Lack of fuel won't cause low boost. It will just run lean

Other than that I'd say you have a leak somewhere.

its an oem turbo, just rebuilt. it is borg warnewr/kkk, says so on the tag. its running rich now too like i said above.

Originally Posted by Sales@Unitronic

I assume you did an OEM replacement with the turbo? Few things to check: I would make sure there are no boost leaks as this is what it sounds like. Do you spike to 20+ psi and then fall to 6-7PSI or does it never reach the original levels?

If you want to run some logs with your Vagcom this would clear things up pretty quickly. Log Channel 114 and 115 which are specified + actual boost. If the requested boost is your usual level and the actual boost is only 6-7PSI as you stated, chances are its a boost leak.

yes, i think i have a boost leak, need to check for it. no vag com, just a v checker though. ps, i have the stage 1+tune, i didnt lose it right?

[vwGLI]

my friend has vag com, hopefully he can stop by later today. how do i reset my ecu? im seeing a lot of people say to unplug the battery, for different amounts of minutes, but it seems as though nobody knows for sure.

[vwGLI]

scanned and cleared all codes. rescanned to make sure they all cleared. got a code that said .01314 engine control unit. cleared again. engine control unit. is my ecu fried or something?

[tom5191]

My ECU always resetting if it the battery was unplugged for more than 2 minutes. Hell, leave it undone for 30 minutes if you want to be sure. It won't take longer than that.

[Pssst...passed you]

01314 - Engine Control Module
01314 - Engine Control Module: No Communications
Possible Causes
CAN-Databus Wiring/Connectors from/to Engine Control Module faulty
Fault(s) stored in Engine Control Module
Engine Control Module recently flashed or re-mapped
Possible Solutions
Check CAN-Databus Wiring/Connectors from/to Engine Control Module
Check Measuring Value Blocks (MVB)
Usually Measuring Value Blocks (MVB) 125+ show the current Communication Status



01314 - Engine Control Module: Check DTC Memory
Possible Causes
Fault(s) stored in Engine Control Module
Possible Solutions
Check Engine Control Module for Fault Codes
Special Notes
Engine Control Module stored a Code which influences other Control Modules Functionality.
To clear this Fault Code you will need to correct the Problem in the Engine Control Module first.

[vwGLI]

thank you, need to check the ecu. but in the mean time:

car is running good with splitter valve back in. one problem, both the splitter and diverter valve flutter! but theyre both hooked up correctly. splitter valve was adjusted and it still flutters! still getting only 5-8 lbs of boost. but idle is good.

[-vdub-]

is this with stock intercooler piping?

[vwGLI]

yes all stock. i have it in right, as a matter of fact i tried putting the splitter in both ways. and it fluttered both times.

[_FUBAR_]

Hate to say it but are you sure its the dv fluttering and not the turbo? ...compressor surge.

[Shameless]

Vacuum line to the DV is good?