help~ reduced engine & nitrous problem
my 2003 zo6vette has lot a problem.
i bought my vette in 2010. from america.
that time my vette is normal condition.
but, i tuned my vette. when my problem started.
header (obx-long) + x-pipe + custom end.
itg air-filter
os giken 2way l.s.d
msd coil + cable
&
zex wet nitrous. (<<<< now installing)
obx long header is not fit completely.
3# 4# o2 sensor was wrong direction.
i heard...diablo predator can delete 3# 4# sensors...
so, i eliminate my rear 02 sensors...
then, my vette spit a lot of pcm codes...
here is my dic.
p codes.
p0133
p0140
p0153
p0160
p1153
p0134
p0135
p0154
p0155
p0463
sometimes spit 4 codes...sometimes spit 8codes.
but, my predator was wrong version. it's only 2004 vette!!
so.. i ran my vette with trouble codes in 8months.
---------------------------------
a few weeks ago.
i hope install 'zex wet nitrous system'
so.. i bought all packages.
and, go my parking lot.
-----------------
here is problem!!!
reduced engine power + all guages down.
it was not my first time (reduced signal)
but, it was soon disappear... or when key off - started...it's gone.
but this time...it's not gone.
it always come to engine is cold.
it disappear..when engine is warm..or an impact on the road(rough road) ---i think-----
-------------------------------------------------------
here is second problem.
install 'zex nitro'
it activated on 'tps system + rpm system'
but, my tps sensor has not enough voltage.
it is not works.
tps wiring ----count top.
4. blue - >>is this tps voltage?
i think it's connect .
tps voltage ------ reduced engine power.
what can i do?
hit "reset" on your DIC and pull all of your codes again. Then post them. Do not pull your codes with your handheld. Pull them through the DIC. Hit reset quickly until you get no warning messages the go through the process.
Try disconnecting the nitrous controller and see if the problem goes away. Then reconnect carefully. That blue wire is "falling TPS wire". If you're not supposed to be using the "falling" wire, get off that one. Use a good volt/ohm meter to verify all of your wiring and don't use junk connections like scotch locs for wiring your nitrous. If you do, just put a broom and dust pan in the back to help you clean up the mess when your motor blows up.
Last edited by BLOWNBLUEZ06; Oct 7, 2011 at 09:49 AM.







