prpnum1

Yeah, so I installed a boost controller yesterday, and now when I get into boost it seems like the fuel is cutting in and out and then like no fuel at all. any Ideas? it also does it now even when i put it back down to stock boost.

2_much_tc

did you get it tuned after you installed the boost controller? I'm just wondering. The turbo guys would probably know more...

prpnum1

No havent gotten tuned yet, but the first day it was still runnin great at 10 lbs and then today it starts cuttin in boost, so i drop the bosst back down to 7.5 lbs and it cuts still. got a cel so im gonna check it when i friend gets home with the scanner.

Mr_Meaty

did you get the CEL before or after it started cutting out?
What boost controller did you get?

First thing I would do (after checking and clearing the CEL) is turn off the boost controller and see if you still get the fuel cut.

What are your AFRs at when you feel it cut?

Mr_Meaty

Your on the F/IC, right? Your map may not bee tuned up to 10psi. You shoudl look at yoru map and see how high the load is, then subract whatever your absolute psi is. You can check this by pluggin in your laptop to your F/IC and then turning your key to the ON position but dont' turn on the motor. Whatever is says on the "Load" gauge in the F/IC software is what your atmospheric absolute pressure is.


huh?...what did I just say?

Joe_Dezod

Not sure if you have an electronic boost controller or a manual one. Care to post more details/pics?

Where/how do you have the boost controller connected? And is it an external wastegate?

prpnum1

Manual boost controller hooked up to the top port of a 38 mm tial wastegate and t'd into the bov line.

Joe_Dezod

That's where you're having problems.

The top port is better intended for electronic boost controllers. Disconnect the boost controller from the top part of your wastegate.

What you want to do is connect the MBC (manual boost controller) IN LINE with the vacuum source going into the side of the wastegate. This will allow you to properly control boost levels. Cap off your vacuum source coming from the BOV. Check out the ghetto diagram I drew up for you to see what I'm talking about. Gotta love paint!



Let me know if you have any other questions.

Joe_Dezod

Oh yeah...

MAKE SURE you have the boost controller all the way down before you start driving your car. Slowly bring it up until you find the point where it starts raising boost. Typically one full turn is 1 psi, but it takes a couple in the beginning before this starts happening.

prpnum1

lol thanks. I will try that right now and let you know how it works.

Joe_Dezod

Definitely post up! I'll be watching you're thread for you in case you need anything. My phone is listed on my website.

prpnum1

k thx....brb

Mr_Meaty

Um...yeah, Joe...Is THAT supposed to be a picture of the wastegate? MS Paint ftmfw!

Joe_Dezod

Haha I was waiting for a comment about it lol...

I'm a busy boy. It took me about a min to make that lol. Time is of the essence man! Yeah I have Photoshop CS3 yet I still use paint for a lot of things. Go me lol.

Whats the update prpnum1? Out enjoying your car?

prpnum1

Well just got back from runnin some errends. Forgot to buy some t's DOH! Disconnected the mbc until i go get the t's and then ill update again.

Joe_Dezod

Ok let us know how it goes.

prpnum1

Well just got back from autozone, and after rerouting the mbc, so far no cut at 8 lbs...ill throw it up to 9/10 lbs on my way to work later and check it out and update again. but so far, so good. Well except for the fact that my clutch just slips like crazy, but thatll be fixed this weekend Thanks joe for the help.

Joe_Dezod

Any time man glad to help!

aen

that would explain my ____.

ahaha, good thing i read this.