TPS Pinouts - Which pin is for what?
11-07-02, 02:52 PM
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Safety Guy
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TPS Pinouts - Which pin is for what?
I need to know on the 20B TPS, which of the 4 pins is for what? I know there is a +5V, a ground, one that is not used, and the last is for something else...
So, which pin, from top to bottom, does what?
Thanks everyone.
So, which pin, from top to bottom, does what?
Thanks everyone.
11-07-02, 03:20 PM
#3
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yah its just like the fd too. actually 90-94? protege automatics have the same tps connector, and a similar tps
mike
mike
11-08-02, 10:19 AM
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Actually, there are two different TPS units your motor could have (at least). One has a metal cover, the other has a plastic cover. The plastic cover one is the same wiring as the FD, the metal one is allegedly the same as the picture I posted from the hitman, but I couldn't get it to work. If you still can't get it wired, let me know and I'll check it out tonight... I think there may be 3 TPS units that Mazda was using at the time.
11-08-02, 11:18 AM
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whats the part number on yours?
mike
mike
11-08-02, 12:14 PM
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Mine has a metal cover on it. I will look tonight and see what the part # is.
My 20B has the older style upper intake manifold without the black anodizing on it if that helps.
Thanks, Kerry.
My 20B has the older style upper intake manifold without the black anodizing on it if that helps.
Thanks, Kerry.
11-08-02, 12:20 PM
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I think all 3 of us have the older style 20B. My TPS has a metal cover on it... I'll look tonight, or in the morning most likely and post the pinout and part number.
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11-10-02, 01:02 PM
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Correct me if I'm wrong but the 20b and the 13b-re shared the same TB right? Well if so i have some info from my 13b-re tps. One of the hoses I toook off the TB had a date on it of 4/23/92 so I'm assuming that it's a 92 or 93 model engine. The Numbers off the tps are NF01 18 911 and 198500-0540 hope this helps. Oh yeah it has a metal plate on it.
11-10-02, 09:52 PM
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ive looked the 13b and 20b cosmo's have different tbodies, apparently the 20b has larger throttle blades (they are identical on the outside).
i also looked at my tps, its also NF01-18-911. i hooked it up like an fd, using the full range part.
mike
i also looked at my tps, its also NF01-18-911. i hooked it up like an fd, using the full range part.
mike
11-11-02, 10:15 AM
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The 2 and 3 rotor cosmo engines (allegedly from the same years at least) shared the same TPS, but not the same throttle body. When the FD was introduced, they started to mix that TPS into the flow as well...
Does anyone else have a modified throttle body that is polished with the secondary butterflies removed?
Does anyone else have a modified throttle body that is polished with the secondary butterflies removed?
11-11-02, 12:19 PM
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Originally posted by Turbo 3
Interesting about the throttle plates. Are you able to measure them and see how much of a difference in mm? j/c...
Interesting about the throttle plates. Are you able to measure them and see how much of a difference in mm? j/c...
mike
11-12-02, 08:36 PM
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Originally posted by Kurgan
Does anyone else have a modified throttle body that is polished with the secondary butterflies removed?
Does anyone else have a modified throttle body that is polished with the secondary butterflies removed?
You meant the "choke blades" right?Last edited by setzep; 11-12-02 at 08:41 PM.
11-13-02, 09:17 AM
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3rd Image
I wanted to maximize airflow and I ground out as much as I could without going through the casting wall. Then the holes from the TB mod, etc, were welded shut to absolutely ensure no leaking.
I wanted to maximize airflow and I ground out as much as I could without going through the casting wall. Then the holes from the TB mod, etc, were welded shut to absolutely ensure no leaking.
11-13-02, 09:25 AM
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3rd Image
I wanted to maximize airflow and I ground out as much as I could without going through the casting wall. Then the holes from the TB mod, etc, were welded shut to absolutely ensure no leaking.
I wanted to maximize airflow and I ground out as much as I could without going through the casting wall. Then the holes from the TB mod, etc, were welded shut to absolutely ensure no leaking.
11-13-02, 12:04 PM
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i found that you have to remove the secondary throttles, the blades will close under boost
mike
mike
11-13-02, 07:08 PM
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Originally posted by Turbo 3
3rd Image
I wanted to maximize airflow and I ground out as much as I could without going through the casting wall. Then the holes from the TB mod, etc, were welded shut to absolutely ensure no leaking.
3rd Image
I wanted to maximize airflow and I ground out as much as I could without going through the casting wall. Then the holes from the TB mod, etc, were welded shut to absolutely ensure no leaking.
Did you weld that shut also and regrind? Looking at your blades the secondary ones do look a little larger than the primary, is that true? What are the size of them?
Last edited by setzep; 11-13-02 at 07:19 PM.
11-14-02, 08:21 AM
#23
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Hey... you're pretty observent. Yes, I put about a pinhole size hole in the bottom right-hand corner. Didn't even realize it until after it was all cleaned up. Dab a spot of weld, sand down, and all is good.
Don't know about the size difference between the primary/secondary throttle plates and I think I threw the primaries out after I was done...either that or they're in a box somewhere. Not of much good anymore regardless.
I was contemplating waiting on doing the complete TB mod on this car so I could do a before/after of it with measureable results but why wait? Might as well do all of it while the motor/car is all apart yet and be done with it. I would think that the less restriction overall would improve flow. Under boost might be a different story as the entire vessel is pressurized so I'm not sure how much of a difference it really makes.
Don't know about the size difference between the primary/secondary throttle plates and I think I threw the primaries out after I was done...either that or they're in a box somewhere. Not of much good anymore regardless.
I was contemplating waiting on doing the complete TB mod on this car so I could do a before/after of it with measureable results but why wait? Might as well do all of it while the motor/car is all apart yet and be done with it. I would think that the less restriction overall would improve flow. Under boost might be a different story as the entire vessel is pressurized so I'm not sure how much of a difference it really makes.
