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New to forum - 2002 Vortech supercharged / no power below 3000rpm

New to forum - 2002 Vortech supercharged / no power below 3000rpm

Old 07-08-2014, 07:13 PM
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Unhappy New to forum - 2002 Vortech supercharged / no power below 3000rpm

Problem! All opinions will be appreciated.
2002 S2K Vortech supercharged with intercooler & up-graded fuel pump --47000 miles
I shut it off it was running great - the next time I started up I have no powerbelow 3000 RPM.
I have to get the RPMs above 3000 and ride the clutch to get going.

Seems like it's starving for air, A/F gauge tops out all the time.
On the freeway it seems to be fair - except the air fuel/ratio gauge is going nuts.

Have had four people look for vacuum leaks.
Sprayed Carbcleaner all around Idle never changed.
Disconnectedthe catalytic converter, no change.
Disconnected the air cleaner box, no change.
Disconnectedthe intercooler from the intake, no change
Sprayed carbcleaner in the intake rpm's actually dropped.
New; MAPsensor, no change
New; plugs
checked the fuel pressure no problem.
I would appreciate all your thoughts.

I linked a video – edited to under 5min. Please watch

Codes that were saved, CEL went off by itself & has stayed off.

After the following codes were wiped by a previous mechanic, then…my friend hooked up his OBDll. Said my oxygen sensor kept opening & closing.

I think, I might have a supercharger idler pulley going bad.
You think that could create enough drag on the crank?

  • P0107 0 - 3 --------------- Manifold AbsolutePressure Circuit Low Input
  • P0335 Crankshaft Position Sensor A CircuitMalfunction
  • P0122 Throttle/Pedal Position Sensor/Switch ACircuit Low Input
  • P1362 TDC Sensor No Signal
  • P0113 Intake Air Temperature Circuit High Input
  • P1519 Idle Air Control Valve Circuit Failure
  • P0301 7 - 1 P1399 ____ Cylinder 1 MisfireDetected
  • P0302 7 - 2 P1399 ____ Cylinder 2 MisfireDetected
  • P0303 7 - 3 P1399 ____ Cylinder 3 MisfireDetected
  • P0304 7 - 4 P1399 ____ Cylinder 4 MisfireDetected
HELP PLEASE
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Old 07-09-2014, 05:00 PM
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these cars make no low rpm hp/tq whatsoever. i don't really do anything below 3,000rpm.

i don't really pay attention to the tach after having the car for like 6 years, i'll go try to replicate your video.
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Old 07-09-2014, 05:44 PM
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Does it have a stock flywheel?
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Old 07-09-2014, 07:17 PM
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Originally Posted by turbosix View Post
Does it have a stock flywheel?
yes... & thanks for the reply
I have driven this car 20,000 miles
Something happened & it was like the flip of a switch
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Old 07-10-2014, 12:18 PM
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Reset ECU, still the same.
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Old 07-10-2014, 04:29 PM
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Originally Posted by Mike in Detroit View Post
yes... & thanks for the reply
I have driven this car 20,000 miles
Something happened & it was like the flip of a switch
ohh... sorry man for some reason i was thinking you just bought it. i can't imagine an idler pulley causing enough drag. you'd probably smell the stress on the belt.
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Old 07-10-2014, 04:47 PM
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Originally Posted by turbosix View Post
ohh... sorry man for some reason i was thinking you just bought it. i can't imagine an idler pulley causing enough drag. you'd probably smell the stress on the belt.
I bet you're right turbo. I probably would smell it. Some people are telling me crank sensor. next thing I'm going to try is my buddy told me to disconnect both of my O2sensors. He told me I kept opening and closing. That might explain my air / fuel ratio jumping up-and-down on my gauges
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