Car spuddering

[Arsonstang]

Hey everyone i notice when i step on the pedal my car spudders before changing gear. It happend to me before and it was the O2 sensor, so i changed the other side cuz the passenger side is fairly new. But its still spuddering... Can anyone help me? thanks

 

[CManT1914]

Have you tried pulling the codes?

 

[mo_dingo]

it studders when you go from part throttle cruise to WOT???? You need to clean your MAF & IAT in that case.

You should also make sure the TPS is getting around 4.5V at WOT too.
Scott

 

[SeventyMach1]

it studders when you go from part throttle cruise to WOT???? You need to clean your MAF & IAT in that case.

You should also make sure the TPS is getting around 4.5V at WOT too.
Scott

Totally agreed. Check codes. Clean MAF & IAT sensors with alcohol & q-tips. And check the TPS voltage.

 

[Arsonstang]

it happens when i floor it.. ive already cleaned the MAF and IAT... how do i check the TPS voltage? Is there a gauge or somethin i have to buy?

 

[CManT1914]

it happens when i floor it.. ive already cleaned the MAF and IAT... how do i check the TPS voltage? Is there a gauge or somethin i have to buy?

Use a digital multimeter. You have to backprobe two wires on the TPS plug and turn the throttle wide open with the key on (engine off) and make sure it jumps to 4.5 volts.