how to identify and fix bad auto throttle body?
#1
how to identify and fix bad auto throttle body?
So since hooking up my ms3x, I've been having trouble with my vtps out of an automatic 1.6. I purchased an auto tb with tps sensor here on the forums a while back and wired it up as per the many many write ups here.
I have not been able to get consistant readings when I calibrate the tps on tunerstudio. When I attempt to calibrate it, ill usually get around 700 for my low number and 800 for my wot number. And even then it fluxuates greatly. I can't get it to stay on a set of numbers.
First I assumed I messed up the wiring so I went back and checked it and its all good. Then I assumed it was a bad tps sensor so I went and purchased another one and im having the same issue.
Which leaves wiring on the ecu, or a short somewhere else in the system. But then I took off the tps and calibrated it off the TB with my fingers. Im getting very very consistant numbers with it, so I have no doubt its the tb.
What can I do to attempt to fix the tb? I can't see anything obiously wrong with it, and the car is running decently other then these issues.
I have not been able to get consistant readings when I calibrate the tps on tunerstudio. When I attempt to calibrate it, ill usually get around 700 for my low number and 800 for my wot number. And even then it fluxuates greatly. I can't get it to stay on a set of numbers.
First I assumed I messed up the wiring so I went back and checked it and its all good. Then I assumed it was a bad tps sensor so I went and purchased another one and im having the same issue.
Which leaves wiring on the ecu, or a short somewhere else in the system. But then I took off the tps and calibrated it off the TB with my fingers. Im getting very very consistant numbers with it, so I have no doubt its the tb.
What can I do to attempt to fix the tb? I can't see anything obiously wrong with it, and the car is running decently other then these issues.
#3
Black/green wire on sensor to black wire on harness
red/black wire on sensor to red wire on harness
green/red wire on sensor to green wire on harness
red wire on sensor not connected.
Just for ***** and giggles I swapped the red/black wire with the red wire, and it resulted in no response at all from the tps.
red/black wire on sensor to red wire on harness
green/red wire on sensor to green wire on harness
red wire on sensor not connected.
Just for ***** and giggles I swapped the red/black wire with the red wire, and it resulted in no response at all from the tps.
#6
Bringing this back from the dead but all the wires are correct. TPS sensor is working properly (Verified OHMs). Tried 2 more TPS sensors.
When I remove the TPS from the TB and turn it with a flat head, it works flawlessly. As soon as I bolt it up the the TB and use the pedal to calibrate it, it goes to ****.
When I remove the TPS from the TB and turn it with a flat head, it works flawlessly. As soon as I bolt it up the the TB and use the pedal to calibrate it, it goes to ****.
#8
Bringing this back from the dead but all the wires are correct. TPS sensor is working properly (Verified OHMs). Tried 2 more TPS sensors.
When I remove the TPS from the TB and turn it with a flat head, it works flawlessly. As soon as I bolt it up the the TB and use the pedal to calibrate it, it goes to ****.
When I remove the TPS from the TB and turn it with a flat head, it works flawlessly. As soon as I bolt it up the the TB and use the pedal to calibrate it, it goes to ****.
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04-21-2016 03:00 PM