If you know the part number,there will be no need to think. Do you know what it is?I think you nailed my issue
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SignUp Now!If you know the part number,there will be no need to think. Do you know what it is?I think you nailed my issue
I will have to look and see what I can find tomorrow morningIf you know the part number,there will be no need to think. Do you know what it is?
TPS
The angle of the TPS in your photo looks a bit weird to me. When i have my TPS set to .42 the front / top of it is slightly tilted upward.
Then, rotate the top of the sensor CCW a bit until your scan tool indicates an idle TPS voltage of say 0.38-0.44 volts
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I find it hard to believe that someone would pay $200.00 for a tps sensor,but perhaps the wrong sensor got put in the correct box. Switching a and c will work if this is a case of an 84-85 sensor on an 86-89 system,but the next person who replaces the sensor will be very frustrated. If the OP is anything like me,this will happen many years down the road to him again and he will have forgotten about what he did this time. If this is a case of an 84-85 sensor on an 86-89 set-up,the best,cheapest and safest way to fix this is to buy the correct sensor.View attachment 311374
Try switching A & C .
The weather pack connector comes apart and you can switch the pins.
Since it is working correctly but in an opposite manner,the only things that make sense are that he has the wrong sensor or someone changed the wiring.Is it possible you have the throttle blade not seated in the notch of the tps. I remember hearing someone having same problem a while back.
Since it is working correctly but in an opposite manner,the only things that make sense are that he has the wrong sensor or someone changed the wiring.
The top wire should be grey,the middle wire should be dark blue,and the bottom wire should be black.
If the top wire is black and the bottom wire is grey,someone has switched those 2 wires. If that is the case,the proper way to fix this is to switch those 2 wires back to there correct positions in the connector housing.
If you have an 86-89 and it is wired as you say,someone has installed an 84-85 tps and swapped the grey and black wires.Mine is top wire black,middle wire is dark blue, bottom wire is light gray. It runs / idles perfect.
If you have an 86-89 and it is wired as you say,someone has installed an 84-85 tps and swapped the grey and black wires.
The 86-89 tps has grey top terminal A,dark blue middle terminal B,and black bottom terminal C just as the OP shows his car having in the picture he provided. My car is this way also and the Buick Chassis Service Manual shows it to be as I've described.
Based on this picture ,we can see that the tps is the correct 86-98 sensor and the wires are correct according to color. We can't tell if the connector is an aftermarket connector and pigtail that is spliced incorrectly,we can't tell if the sensor was manufactured incorrectly,and we don't know if the top wire has a constant 5 volts with the ignition switch in the run position,but everything we can see is correct.TPS
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There was a discussion on face book last week about the wires on the tps sold by the parts stores. The colored wires are wrong but the sensor works fine with no wire swapping needed.The TPS is one i bought from Oreilly auto parts it's an BWD brand for an 86 turbo buick regal vin code 7.
This is the TPS i have.
https://www.oreillyauto.com/detail/...n-sensor/ec1098/2597733/1986/buick/regal?q=tp
This is the replacement TPS connector plug i have. And it shows the wires as i stated from top to bottom, black,dark blue,light gray.
https://www.oreillyauto.com/detail/...-16631/throttle-position-sensor-connector-114
But i did replace the connector wiring plug about 8 years ago and it's made by BWD and i bought it from Oreilly's. I don't remember switching any wires around when i installed it.
It is weird though that the OP has the correct wiring to the connector plug for the TPS but has the wrong readings.
I have the wrong wiring to the connector plug but i have the correct readings and it idles and runs perfect.