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idle sounds funny

black_eclipse96

Proven Member
287
1
Sep 12, 2008
Vernon, Texas
well guys im having a problem with the idle.. it sounds exactly like the one in the video. the plugs are about 4 months old. The wires have been replaced ,but not sure when. could it be the coil pack, im also getting a check engine light for the tps sensor. It has no power what so ever. so what could this be? thanks




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LiquidX

DSM Wiseman
8,304
109
Sep 19, 2008
Anywhere, Pennsylvania
Well if your TPS is bad then you should have it replaced. Shoot me a PM on that if you need one.

If you are going to question the coil pack, do a resistance test on it and you should test the PTU next to it as well.
 

Twinturbo120

Supporting VIP
476
24
Aug 14, 2010
Miami, Florida
Sounds fine to me. But if the TPS sensor is broken you might want to get that replaced. =)
 

black_eclipse96

Proven Member
287
1
Sep 12, 2008
Vernon, Texas
Thats exactly what my car sounds like...

Are you missing power under boost? Blow off valve sounds weird? I haven't been able to figure it out yet, its been like 3 months.

oh yeah missing tons of power under boost. did like 3 blt's and nothing. im running a 14b on 15 lbs of boost and no power what so ever:|
 

dyetrying91

Proven Member
107
1
Jul 2, 2009
North Haven, Connecticut
oh yeah missing tons of power under boost. did like 3 blt's and nothing. im running a 14b on 15 lbs of boost and no power what so ever:|

We have the same problem ha. I'm running an 18g and it is up around 18psi, feels like 4 psi. BOV flutters when under 10 psi. Just doesn't pull. I've retimed it mechanically 3 times, BLT at 30 PSI, checked every single vacuum line for leaks. At a complete loss right now. Need to get my hands on a multimeter to start checking my TPS and O2 sensors. I have no CEL though.

EDIT: Is your vacuum sitting real low too? like 15ish? sometimes 10?
 

black_eclipse96

Proven Member
287
1
Sep 12, 2008
Vernon, Texas
yup sometimes it's at 16 hg and other it's at 18 hg. im really don't know. it was doing this before i got a check engine light.
 

black_eclipse96

Proven Member
287
1
Sep 12, 2008
Vernon, Texas
i haven't done one in a while, but my results were all 150. maybe one of us will figure it out. i took off my recirculating tube a couple of days so i could fix the flutter on the bov.
 

black_eclipse96

Proven Member
287
1
Sep 12, 2008
Vernon, Texas
compression i 150 across the board. i have done countless of blts and nothing. Noticed a new problem when im hitting about 2 lbs it bogs down pretty bad, you noitce it right away. The loss of power has me puzzled.
 

thetalonator

Proven Member
51
0
Apr 23, 2009
kalamazoo, Michigan
are u hooking the boost leak test up to the turbo inlet and holding the throttle plate open when you pressurize the system? can u hear where the pressure is leaking?
 

black_eclipse96

Proven Member
287
1
Sep 12, 2008
Vernon, Texas
yes i hook it up to the turbo inlet and no to holding the throttle plate open. what would be the reason to open the throttle up? i do hear air going to the oil pan, but hardly has any shaft play in or out and side to side.
 
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