Hello !
My idle was very high +2000 rpm on my ae86 gts map.
I read many topics to find the good way.
I had a vacuum leak, so I replaced the tvis and throttle gaskets and after checking with smoke, no more air leak here.
I took the oportunity for cleaning the aav and testing it with hot water to confirm that it is working properly.
Then I adjusted the tps with an ohmeter.
Now, I have a surging idle between 2000-1000 rpm.
Idle screw almost closed, Air from coolant purged, ignotion timing ok, resistance checked for the tvis yellow sensor and the 2 brown and green sensor. All are ok regarding the 4a manual.
No change with finger on aav hole.
Throttle body is clean and it is the rwd one (I checked that too).
I am thinking of a bad tps because the fluctuation stops and idle raise when I unplug the tps or the map sensor.
Also, maybe my throttle plate is used but I did not see any topics about this possibility.
Any other idea ?
When I check with light, I can see that my throttle plate is not closing totally even without stop screw. I am thinking about replacing the plate but the screws looks very hard to remove or using a sealant like tomei throttle coat in Japan.
Who tried this rebuilt / sealant ?
Thanks
Throttle body plate used and surging idle
Re: Throttle body plate used and surging idle
I tried to remove the throttle plate and ran into the same problem. I even applied heat to the throttle plate and could not remove the screws. One possible option is to grind down stop to allow for more travel or see if you loosen the nut on the cable side of the shaft. This might allow the plate to shift and adjust or center in the T/B bore.
Re: Throttle body plate used and surging idle
There should be a set screw with a nut that stops the plate assembly at a "closed" point. you can adjust that, if needed, to have it close a bit more.
That's if adjusting the throttle cable doesn't work.
That's if adjusting the throttle cable doesn't work.
haha cali...i got one of your 86's and you're not getting it back.
My turd of an 86
20v swapped 86 write-up
My turd of an 86
20v swapped 86 write-up
Re: Throttle body plate used and surging idle
The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore, all progress
depends on the unreasonable man.
persists in trying to adapt the world to himself. Therefore, all progress
depends on the unreasonable man.