Low revs/cutting out when idle
- Thread starter miahvtec
- Start date
Leej8
Well-Known Member
- Joined
- Oct 12, 2015
- Messages
- 1,613
You got a cat ? Blocked mybe? Did you adjust your tps back to it proper setting?
Ripped from another website
Testing TPS Voltage
Check ground - (Green)
1. Set meter to continuity ( -->I-- ). Some meters have (((( symbol which will beep when there is continuity.
2. Connect negative lead of meter to battery ground.
3. Connect positive lead to green wire. Verify that the wire has a good ground.
***Key must be in the ignition to the ACC position to test power and signal***
Check 5V Power + (Yellow)
1. Set meter to DC Voltage.
2. Connect negative lead to battery ground
3. Connect positive lead to yellow wire. Verify 5v DC +
Check TPS Signal output + (Red)
1. Set meter to DC Voltage.
2. Connect negative lead to battery ground
3. Connect positive lead to red wire. You should see approx 0.5v when closed and 4.5v when you fully open the throttle body.
4. Check the TPS voltage for “Dead Spots”. Throughout the range of movement the voltage should increase smoothly and steadily without any sudden voltage gaps, drops, or spikes .
**If your voltage is backwards (4.5v closed and .5v open) then your TPS wiring is incorrect. Reverse the position of green and yellow wires.**
**Another common mistake is reversing the TPS and MAP plugs. Make sure the correct plug is connected**
**You may have to reset the ECU to clear the CEL code 7, if you cycled the key with the TPS disconnected during testing**
(to reset ecu, disconnect neg battery cable. Remove "Hazard" 10A fuse from under hood fuse box. Count to 20. Insert fuse and reconnect battery.
Ripped from another website
Testing TPS Voltage
Check ground - (Green)
1. Set meter to continuity ( -->I-- ). Some meters have (((( symbol which will beep when there is continuity.
2. Connect negative lead of meter to battery ground.
3. Connect positive lead to green wire. Verify that the wire has a good ground.
***Key must be in the ignition to the ACC position to test power and signal***
Check 5V Power + (Yellow)
1. Set meter to DC Voltage.
2. Connect negative lead to battery ground
3. Connect positive lead to yellow wire. Verify 5v DC +
Check TPS Signal output + (Red)
1. Set meter to DC Voltage.
2. Connect negative lead to battery ground
3. Connect positive lead to red wire. You should see approx 0.5v when closed and 4.5v when you fully open the throttle body.
4. Check the TPS voltage for “Dead Spots”. Throughout the range of movement the voltage should increase smoothly and steadily without any sudden voltage gaps, drops, or spikes .
**If your voltage is backwards (4.5v closed and .5v open) then your TPS wiring is incorrect. Reverse the position of green and yellow wires.**
**Another common mistake is reversing the TPS and MAP plugs. Make sure the correct plug is connected**
**You may have to reset the ECU to clear the CEL code 7, if you cycled the key with the TPS disconnected during testing**
(to reset ecu, disconnect neg battery cable. Remove "Hazard" 10A fuse from under hood fuse box. Count to 20. Insert fuse and reconnect battery.
paul pierotti
Member
- Joined
- Feb 7, 2015
- Messages
- 203
mine is doing the same thing at the moment got a new tps coming tomorrow hope that sorts mine. I have seen what lee has posted a few times so try that after tps
had a similar problem
If i mashed the accelerator pedal when it started to die
it would sound bawwww and just continue to die
ended up being the alternator and was not running properly
remember the car starts with battery then runs on alternator
If i mashed the accelerator pedal when it started to die
it would sound bawwww and just continue to die
ended up being the alternator and was not running properly
remember the car starts with battery then runs on alternator