sct problem?????

[srtmaniac]

04 reg.cab with 2,700 miles magnaflow,sct and k&n are the only mods.done about a year ago.all of the sudden i start noticing it missing and bucking against the gears when just maintaining speed down the road.doesnt ever miss when accelerating or pouring the coal to it.now its started having a real goofy idle when first started or after running down the road and pulling up to a red light.idles anywhere from 1500 -2000 rpms.check engine light has come on.any ideas are appreciated.exhaust system(complete)and sct are from roe

 

[DevilDawg3097]

if your check engine light is coming on plug the sct in and tell us the codes. start with that.

 

[VIPR PWR]

Contact Roe ---I'm sure they will help

 

[LoveThisTruck]

Getting any codes??

I'd call Sean

 

[LoveThisTruck]

BAM... now that's service! lol

 

[SANCHOBA]

sounds like another TPS (throttle position sensor) problem:argh:

 

[Venom Power]

Yup, sounds like a TPS issue to me..

 

[FlyingLow]

Just turn the key off and on 3 times leaving it on and the codes will show on the dash.

 

[scar426]

:dito:

sounds like another TPS (throttle position sensor) problem:argh:

What He said. TPS!

Will

 

[GriffsSRT]

Call Sean

 

[TNVIPER]

Just call the man!

 

[FlyingLow]

Get the code first. Might not be something with the SCT.

 

[srtmaniac]

ill do that tonite.thanks guys

 

[srtmaniac]

p-0121 what is it?

 

[TNVIPER]

P0121 - Throttle Position Sensor/Switch A Circuit Range/Performance Problem.

The Throttle [COLOR=#009600! important][FONT=Verdana,sans-serif][COLOR=#009600! important][FONT=Verdana,sans-serif]position [/FONT][COLOR=#009600! important][FONT=Verdana,sans-serif]sensor[/FONT][/COLOR][/FONT][/COLOR][/COLOR] is a potentiometer that measures the amount of throttle opening. As the throttle is opened, the reading (measured in volts) goes up. The powertrain [COLOR=#009600! important][FONT=Verdana,sans-serif][COLOR=#009600! important][FONT=Verdana,sans-serif]control [/FONT][COLOR=#009600! important][FONT=Verdana,sans-serif]module[/FONT][/COLOR][/FONT][/COLOR][/COLOR] (PCM) supplies a 5 Volt reference signal to the throttle position sensor (TPS) and usually a ground also. A general measurement is: at idle = .5 Volts; [COLOR=#009600! important][FONT=Verdana,sans-serif][COLOR=#009600! important][FONT=Verdana,sans-serif]full [/FONT][COLOR=#009600! important][FONT=Verdana,sans-serif]throttle[/FONT][/COLOR][/FONT][/COLOR][/COLOR]

= 4.5 Volts. If the PCM detects that the throttle angle is greater or less than it should be for a specific RPM, it will set this code.