Welcome to the forum
And just to confirm, running at 2,000rpm and up engine is fine, right?
And just for the record the 2.3l is a high RPM engine, it doesn't reach max torque until 2,600rpm and max horse power at 4,600rpm
So at 1,500rpm it won't have much power.
Get a volt meter, $25, will save you hundreds in replacing the wrong parts.
Get a couple of sewing pins to pierce wires to test them live.
Put a pin in the middle wire on the TPS.
Turn key on, engine off
Set meter to DC volts
Put Red meter probe on pin
You should see .69-.99 volts, under 1 volt
Now manually open throttle and do it slowly
Voltage should start going up
It should be above 4.5volts at wide open throttle
But what you are looking for are dead spots or spots where volts jumps up
It needs to be a nice and steady up or down voltage
If it jumps around computer thinks you are tapping on the gas pedal, so you get jerky operation at that spot in the throttle.
MAF sensor will have 4 wires
These two power the MAF
Red is 12volts
Black/white stripe is Ground
These two are for computer to read air flow.
Use pins to pierce tan and blue wires, put them far enough apart so they can't short together.
Start engine and let idle.
Hook meter to pins, if you get -volts reverse probes on pins
You should see under 1 volt, if engine is cold and idle is high then could be just over 1 volt
But it should be steady if RPMs are steady.
Raise RPMs and voltage should increase as air flow into engine increases
Voltage should be steady at any set RPM,
voltage will go up and down with RPM but should be steady if RPMs are.
At 6,000 RPM voltage should be just over 4 volts, you don't need to test that, lol, but you can :)
Last edited by RonD; 06-06-2016 at 07:43 PM.