getting a linear tps with a 1.6 (few questions)
02-26-2010, 06:10 PM
#1
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getting a linear tps with a 1.6 (few questions)
So, I have a normal 1.6 TPS... friend says this won't work with MS since it's just on/off and not linear.
I do some research and find the 1.6 auto TPS >is< linear just like a 1.8. Then, a friend of my friend tried to install the 1.6 auto throttle body onto his car and apparently nothing matches up. Is there a proper way to achieve a linear tps on the stock 1.6 throttle body?? I guess nothing really matches up, including the auto TPS into manual TB.
I do some research and find the 1.6 auto TPS >is< linear just like a 1.8. Then, a friend of my friend tried to install the 1.6 auto throttle body onto his car and apparently nothing matches up. Is there a proper way to achieve a linear tps on the stock 1.6 throttle body?? I guess nothing really matches up, including the auto TPS into manual TB.
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02-26-2010, 06:14 PM
#2
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The throttle body itself is different between the 1.6 A/T and M/T cars. It's a subtle difference, however it's enough that the TPSs are not interchangeable between them.
You can indeed install a complete 1.6 throttle body assembly, including TPS, from an automatic car onto a standard car. The intake manifolds are the same on both cars, as are the throttle cables, IAC valves, etc.
You can indeed install a complete 1.6 throttle body assembly, including TPS, from an automatic car onto a standard car. The intake manifolds are the same on both cars, as are the throttle cables, IAC valves, etc.
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02-26-2010, 06:44 PM
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Look into the AEM section for a write up I did about using a 240SX TPS sensor. Should work fine with Megasquirt and really easy to install because it has a wire harness coming out of it.
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02-27-2010, 12:18 PM
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https://www.miataturbo.net/forum/t12239/#post157397
You will need to source a linear TPS from the aftermarket or from another application. The easiest swap is probably a BMW TPS Bosch part # 0-280-120-402 from an auto E30 or E36, or Bosch #0-280-120-406 from an E32. Both of these should bolt on your miata TB w/o modification. You will need to adapt the wiring harness to accomodate. The BMW pinout is
Pin 1-black wire-5volt in
Pin 2-shielded wire-ground
Pin 3-yellow wire-signal out
Pin 4-ground
Pin 5-WOT switch
Pin 6-Closed switch
_
6 1
5 T 2
4 3
You will need to source a linear TPS from the aftermarket or from another application. The easiest swap is probably a BMW TPS Bosch part # 0-280-120-402 from an auto E30 or E36, or Bosch #0-280-120-406 from an E32. Both of these should bolt on your miata TB w/o modification. You will need to adapt the wiring harness to accomodate. The BMW pinout is
Pin 1-black wire-5volt in
Pin 2-shielded wire-ground
Pin 3-yellow wire-signal out
Pin 4-ground
Pin 5-WOT switch
Pin 6-Closed switch
_
6 1
5 T 2
4 3
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