car wont rev above 1500rpm
09-25-2013, 07:16 PM
#1
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car wont rev above 1500rpm I have a 2002 pontiac trans am that I just recently got running properly again, but now Ive tried to do my first burnout in over a year, and the engine wont rev about 1500 RPM. I have done plenty of burnouts with this car in the past, but now i cant even get the tires to scratch when i take off from a light.
After, i release the brakes, the car drives like normal for the most part (it travels the full range of rpm), but still has very little power off the line.
The car is an ls1, 4l60e, 2.73 and the following mods:
SLP airbox
SLP Ram Air
K&n Filter
BBK Longtubes w/off road Y
Magnaflow catback w/e-cutout after the y-pipe
Coolant Bypass
AIR Delete
Msd Wires
NGK Iridium Plugs
3200 Stall Circle D Converter
160* Thermostat
*Tuned By Frost*
I mostly drive like a responsible individual, but when i want to drive spirited I'd like for the power to be back in the car like it was a while ago.
After, i release the brakes, the car drives like normal for the most part (it travels the full range of rpm), but still has very little power off the line.
The car is an ls1, 4l60e, 2.73 and the following mods:
SLP airbox
SLP Ram Air
K&n Filter
BBK Longtubes w/off road Y
Magnaflow catback w/e-cutout after the y-pipe
Coolant Bypass
AIR Delete
Msd Wires
NGK Iridium Plugs
3200 Stall Circle D Converter
160* Thermostat
*Tuned By Frost*
I mostly drive like a responsible individual, but when i want to drive spirited I'd like for the power to be back in the car like it was a while ago.
Last edited by 1kwikF; 09-26-2013 at 08:56 AM.
09-26-2013, 06:08 AM
#3
Staging Lane
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09-26-2013, 07:20 PM
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to my knowledge, I have traction control turned off ("tcs off" light on gauge cluster). I would think that if it were traction control the "low trac" light would come on.
My only guess is that some how torque management got turned back on.
I dont know how this would happen since the type of scanner that i have doesnt allow for me to change perimeters.
My only guess is that some how torque management got turned back on.
I dont know how this would happen since the type of scanner that i have doesnt allow for me to change perimeters.
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09-26-2013, 10:12 PM
#8
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to my knowledge, I have traction control turned off ("tcs off" light on gauge cluster). I would think that if it were traction control the "low trac" light would come on.
My only guess is that some how torque management got turned back on.
I dont know how this would happen since the type of scanner that i have doesnt allow for me to change perimeters.
My only guess is that some how torque management got turned back on.
I dont know how this would happen since the type of scanner that i have doesnt allow for me to change perimeters.
Cleaned the maf... no change... all perameters stayed the same on my scanner
10-01-2013, 09:50 PM
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Holding my foot on the brake and pressing the gas the engine will rev to 1500 rpm and stop as if i have an rpm limiter installed. When i release the brake, the launch is incredibly soft. If i just try flooring if off the line the launch is soft, but once im moving i have power. The car will travel the entire rpm range and shift fine
10-01-2013, 10:50 PM
#13
Holding my foot on the brake and pressing the gas the engine will rev to 1500 rpm and stop as if i have an rpm limiter installed. When i release the brake, the launch is incredibly soft. If i just try flooring if off the line the launch is soft, but once im moving i have power. The car will travel the entire rpm range and shift fine
10-04-2013, 10:26 AM
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As ive said before, ive have done brake stands with this setup in the past. I have not changed anything since my last one, but for whatever reason, the car is acting strange.
10-04-2013, 10:58 AM
#15
correct me if im wrong, but a 3200 stall should stall until 3200 rpm... Additionally, a stall will only be effective if the brakes can hold you, which with a trans am with stock rear brakes, the engine should easily be able to overpower the brakes and allow me to do a brake stand.
As ive said before, ive have done brake stands with this setup in the past. I have not changed anything since my last one, but for whatever reason, the car is acting strange.
As ive said before, ive have done brake stands with this setup in the past. I have not changed anything since my last one, but for whatever reason, the car is acting strange.
10-07-2013, 08:49 PM
#16
3200 stall will flash to 3200 but foot braking will only take it to 2300.
If you're trying to do a burn out mash the gas first then the brakes second.
If you're saying the car has no power I would check your fuel pressure your pump is probably failing
If you're trying to do a burn out mash the gas first then the brakes second.
If you're saying the car has no power I would check your fuel pressure your pump is probably failing
10-07-2013, 09:18 PM
#17
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Mashing the gas and then hitting the brakes only propels me forward slowly at a low rpm.
The Car has power, it just doesnt have it right off the line. After im moving the car will break the tires loose, just not right off the line.
Im leaning more twords a tune gone wrong
