Stage one mods and...

[pinky]

Hey guys i have a few questions...First off i have a 90 tsi with stage one mods minus a clutch and still at stock boost.
Now, all of a sudden it is idleing at about 1.5-2 for rpms on the stock tach. Is this normal?
Another thing i noticed is that on my boost guage i dont get alot of power in 1st gear...in fact it gets to about 5psi and then im at to high of rpm's and i must shift, but 2nd pulls much harder and to full boost...Can my fellow tuners please help me out. Thanks for your time

 

[Streetbeat]

search for idle surge....theres a number of things that can be makin your idle bounce like that. maybe your biss idle screw, or your idle adjuster sensor, or even a dirty throttle body

 

[pinky]

ya....it isnt jumping around on the idle it is simply idleing high...around 1.5-2 for rpm's...so i dont think its idle surge...where are all the tuners here? come on guys....

 

[98eclipseRS]

check your biss screw(screw it in and out a little and see if that changes anthing), or it might be a dirty throttle body just like he said. If they get dirty they stick open a little and that could be your problem. It could also be your isc(idle speed controller) just cause its not surging doesn't mean that it isnt that. late.
-zach-

 

[brads]

check for boost leaks. a datalogger would help diagnosing things like this.

Brad

 

[pinky]

ok, i fixed the idle problem but why am i not boosting real well in 1st...its seems like there is no power there and then 2nd is vrroooom...my boost is at stock level still and i have all the 1st stage mods minus clutch....do i up the boost or wait till i can get the car dynoed and tuned? Just lmk guys...i simply just dont want a broken car

 

[DaveDSM]

buy a datalogger.

 

[pinky]

Any other options guys??? Am i safe with just turning it up to 16psi for daily driving?

 

[pinky]

dataloagger on its way

 

[98eclipseRS]

ya get a datalogger its was the best omney i have spent for my car so far. REally helpful, i figured out why my car was running so shitty on the freeway and why i was getting so bad of gas mileage etc.... Good luck.