Notices
Scion tC 1G Forced Induction Turbo and supercharger applications...

WOT/Boost issues

Thread Tools
 
Search this Thread
 
Old 05-27-2008, 06:08 PM
  #1  
Senior Member
10 Year Member
5 Year Member
SL Member
Thread Starter
iTrader: (3)
 
SoFloTC's Avatar
 
Join Date: Jul 2007
Posts: 5,104
Default WOT/Boost issues

hey guys so i have the dezod s1 kit with the AEM fic and lately after i was tuned like 4 weeks ago theres been some issues..
the cruising is fine no problems but if i get on it, it wont reach my 6 lbs easily which im set at.. sometimes the AFR (digital AEM gauge) goes really high and then to --- and my boost spiked to 7 once.. when i gas it heavy in throttle or WOT that occurs and then my car doesnt go anywhere at all and all i hear is pop pop pop pop seems like its slowing actually idk whats going on
SoFloTC is offline  
Old 05-27-2008, 06:17 PM
  #2  
Senior Member
10 Year Member
5 Year Member
SL Member
Team ScioNRG
 
tC_2NeR's Avatar
 
Join Date: Jul 2006
Location: Staten Island, NYC
Posts: 1,756
Default

Does it smell like a go-cart when ur car does that?
----It could be running too rich at wot.

Does the pop pop happen when bouncing off the rev limiter and during shifting?

Maybe possible exhaust mani leak thats preventing u from hittin full boost.
tC_2NeR is offline  
Old 05-27-2008, 06:18 PM
  #3  
Senior Member
10 Year Member
5 Year Member
SL Member
Thread Starter
iTrader: (3)
 
SoFloTC's Avatar
 
Join Date: Jul 2007
Posts: 5,104
Default

i have an auto so it shouldnt be bouncing off the rev limiter.. i am running rich but why wouldnt it have been doing it before and just lately? i kno i have a small leak in the exhaust mani but why wud my afr go ---
SoFloTC is offline  
Old 05-27-2008, 06:19 PM
  #4  
Senior Member
10 Year Member
5 Year Member
SL Member
 
B_Real45's Avatar
 
Join Date: Dec 2007
Location: South Florida
Posts: 2,603
Default

First you should fix your exhaust leak in your manifold. That will slow your spool big time.
B_Real45 is offline  
Old 05-27-2008, 06:37 PM
  #5  
Senior Member
10 Year Member
5 Year Member
SL Member
Team ScioNRG
 
tC_2NeR's Avatar
 
Join Date: Jul 2006
Location: Staten Island, NYC
Posts: 1,756
Default

so wait,

what i got fro your OP is that it happened right after u were tuned right?
tC_2NeR is offline  
Old 05-27-2008, 07:07 PM
  #6  
Senior Member
10 Year Member
5 Year Member
SL Member
 
enjoithis's Avatar
 
Join Date: Oct 2007
Location: Long Island, NY
Posts: 1,027
Default

im having alot of trouble with my F/IC... are you running a boost controller?
enjoithis is offline  
Old 05-27-2008, 11:19 PM
  #7  
Senior Member
10 Year Member
5 Year Member
SL Member
Thread Starter
iTrader: (3)
 
SoFloTC's Avatar
 
Join Date: Jul 2007
Posts: 5,104
Default

no boost controller.. no started happening like 3 weeks after tune.
SoFloTC is offline  
Old 05-28-2008, 01:23 AM
  #8  
Banned
10 Year Member
5 Year Member
Scionetics
KAD
SL Member
 
paul_dezod's Avatar
 
Join Date: Oct 2005
Location: Western NY
Posts: 11,936
Default

The POPing sounds like detonation. I would be leary of that happening regularly.

The boost leak, if bad enough could cause the flux in AFRs (dependng on where it is)

You have a 3" exhaust right?
paul_dezod is offline  
Old 05-28-2008, 01:25 AM
  #9  
Senior Member
10 Year Member
5 Year Member
SL Member
Thread Starter
iTrader: (3)
 
SoFloTC's Avatar
 
Join Date: Jul 2007
Posts: 5,104
Default

correct 3" all the way except the dpipe/spipe
SoFloTC is offline  
Old 05-28-2008, 01:38 AM
  #10  
Banned
10 Year Member
5 Year Member
Scionetics
KAD
SL Member
 
paul_dezod's Avatar
 
Join Date: Oct 2005
Location: Western NY
Posts: 11,936
Default

Originally Posted by SoFloTC
correct 3" all the way except the dpipe/spipe
Did it ALWAYS spike since you have had the 3" with the turbo?
paul_dezod is offline  
Old 05-28-2008, 01:42 AM
  #11  
Senior Member
10 Year Member
5 Year Member
SL Member
Thread Starter
iTrader: (3)
 
SoFloTC's Avatar
 
Join Date: Jul 2007
Posts: 5,104
Default

nope just lately .. it used to run fine.. and its not all the time this is happening either.. just sometimes when i take a ride and go WOT its like pop pop pop boost is weird and the AFR goes --- and my car feels really heavy
SoFloTC is offline  
Old 05-28-2008, 03:17 AM
  #12  
Senior Member
10 Year Member
5 Year Member
SL Member
 
silverstreaktc's Avatar
 
Join Date: Oct 2007
Location: Piscataway, NJ
Posts: 2,279
Default

check for leaks
silverstreaktc is offline  
Old 05-28-2008, 05:24 AM
  #13  
Senior Member
10 Year Member
5 Year Member
SL Member
Thread Starter
iTrader: (3)
 
SoFloTC's Avatar
 
Join Date: Jul 2007
Posts: 5,104
Default

so i got in the car 2nite and it was hitting boost fine at WOT and everything it started going but then the a/f went high then to --- and the car seemed like it wasnt going anywhere after that
SoFloTC is offline  
Old 05-28-2008, 12:46 PM
  #14  
Senior Member
10 Year Member
5 Year Member
SL Member
 
B_Real45's Avatar
 
Join Date: Dec 2007
Location: South Florida
Posts: 2,603
Default

Sounds like limp mode on an automatic..
B_Real45 is offline  
Old 05-28-2008, 01:32 PM
  #15  
Banned
10 Year Member
5 Year Member
Scionetics
KAD
SL Member
 
paul_dezod's Avatar
 
Join Date: Oct 2005
Location: Western NY
Posts: 11,936
Default

Originally Posted by SoFloTC
so i got in the car 2nite and it was hitting boost fine at WOT and everything it started going but then the a/f went high then to --- and the car seemed like it wasnt going anywhere after that
Sounds tuning related. Sounds like it's leaning out. Hesitation like that is usually from a lean AFR
paul_dezod is offline  
Old 05-28-2008, 02:40 PM
  #16  
Senior Member
10 Year Member
5 Year Member
SL Member
 
enjoithis's Avatar
 
Join Date: Oct 2007
Location: Long Island, NY
Posts: 1,027
Default

do manuals have a limp mode?
enjoithis is offline  
Old 05-28-2008, 03:22 PM
  #17  
Senior Member
10 Year Member

5 Year Member

Trader
SL Member
iTrader: (16)
 
yellowxhoodie's Avatar
 
Join Date: Dec 2007
Location: LOWLOW Chicago
Posts: 13,746
Default

Originally Posted by enjoithis
do manuals have a limp mode?
yea, its called first gear. lmao
yellowxhoodie is offline  
Old 05-28-2008, 03:48 PM
  #18  
Senior Member
10 Year Member
5 Year Member
SL Member
 
krazylowgsx's Avatar
 
Join Date: Jun 2004
Location: xB & tC
Posts: 609
Default

take a trip back to the dyno... one pull and you'll know what the problems is!
krazylowgsx is offline  
Old 05-28-2008, 04:07 PM
  #19  
Senior Member
10 Year Member
5 Year Member
SL Member
 
enjoithis's Avatar
 
Join Date: Oct 2007
Location: Long Island, NY
Posts: 1,027
Default

im not going back to the guy who tuned me.... waste of time and money!
enjoithis is offline  
Old 05-28-2008, 05:02 PM
  #20  
Senior Member
10 Year Member
5 Year Member
Scikotics
SL Member
iTrader: (2)
 
etsnet's Avatar
 
Join Date: Sep 2005
Location: HMFIC Jensen Beach, FL
Posts: 3,314
Default

When the AFR gauge goes to -- are you sure your foot isn't coming off the gas? I know to some that might seem like a no brainer but you never know.
etsnet is offline  


Quick Reply: WOT/Boost issues



All times are GMT. The time now is 12:04 PM.