Welcome to the 2GNT Forum!
Home Site Background Info & Specs Mods & Tech Info CAPS Part Reviews Donate 2GNT Stickers
Search Printer-friendly copy 0 Users in Chat
Top 2GNT Technical Turbo/Nitrous Tech topic #101154
View in linear mode

Subject: "Turbo problems... fuel cut? Iginition problems? Please help" Previous topic | Next topic
bzossAug-09-07 10:47 AM
Member since Jun 14th 2003
298 posts,
Click to send email to this author Click to send private message to this author Click to view this author's profile Click to add this author to your buddy list
#101154, "Turbo problems... fuel cut? Iginition problems? Please help"


          

I know that this is going to be very vague, but I will try and make everything as detailed as possible.
To start off, the parts on the car:
8:1 FMU / 255lph walbro
T3 Turbo water cooled
Crane CDI2 Iginition / MSD Coil / 8.5mm wires(Brand new)
Build bottom end / Port & Polish
SAFC-II

Okay, I was having problems with misfire under moderate acceleration combined with blue smoke. I fixed this problem by replacing my plug wires as I found them to be bad.
Once this was done, the car ran better with no smoke.

A day later as I am driving, I get on the throttle in third gear, as I come up in RPM with the throttle STILL ON the blow off valve lifted and the car sort of bucked, as well as the little o2 senser went very lean.
Now this happens everytime that I get on the throttle and the boost comes up. I have also noticed that there is white smoke coming out at idle only. What the heck is going on? Why won't my car just right correctly?
I would have to say that my car has not run right sence I boosted it. Please help!

I checked all the boost/vacuum lines to the FMU, which are still intact. Idle fuel pressure is about 20psi give or take 5psi. Idle is pretty rough as well.
I have also reset the ECU just to see if that would get rid of any bugs. I have not driven the car since the ECU reset.
Oh, I have a missing link attached to the MAP to eliminate the fuel cut. It is well below the fuel cut voltage, so I would assume that is not the problem. Besides, I have not adjusted it and it worked fine before.

Built block.
Refinished head.
Tuned suspension.
TURBO.

  

Report This Post to Admin Printer-friendly copy | Reply | Reply with quote | Top
Top 2GNT Technical Turbo/Nitrous Tech topic #101154 Previous topic | Next topic
Powered by DCForum+ Version 2.2
Copyright 1997-2005 DCScripts.com, Copyright 2005-2026 2gnt.com
Generated in 0.047 seconds, executing 14 queries.