Mazda Variable TPS....
#1
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Mazda Variable TPS....
Guys just picked up one of these...
I guess i'm right in saying that the TPS on my car (92 1.6) is off the on/off variety and the Variable TPS will give a more accurate signal to the MS?
What would one achieve fitting a variable TPS over the on/off type?
And is it a 10 min bolt on jobbie or does the squirt (braineack build) require any mods?
Cheers in advance...
I guess i'm right in saying that the TPS on my car (92 1.6) is off the on/off variety and the Variable TPS will give a more accurate signal to the MS?
What would one achieve fitting a variable TPS over the on/off type?
And is it a 10 min bolt on jobbie or does the squirt (braineack build) require any mods?
Cheers in advance...
#2
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Yes the 92 TPS is an on/off type, take it apart and you'll see.
Which TPS do you have now? the only direct bolt on TPS is one from a 1.6 auto. the 1.8 TPS's are variable, but they won't fit easily at all. the 1.6 has a 'D' shaft whereas the 1.8 cars have two 'pins' which slot into gaps in the TPS.
Some BMW TPS's have a 'D' shaft input and will just require a mount fabbing up to hold the TPS in place.
The MS requires no modifications, you just need to hook up ground to the TPS, plus the VRef (5v) line and the TPS Signal line.
Which TPS do you have now? the only direct bolt on TPS is one from a 1.6 auto. the 1.8 TPS's are variable, but they won't fit easily at all. the 1.6 has a 'D' shaft whereas the 1.8 cars have two 'pins' which slot into gaps in the TPS.
Some BMW TPS's have a 'D' shaft input and will just require a mount fabbing up to hold the TPS in place.
The MS requires no modifications, you just need to hook up ground to the TPS, plus the VRef (5v) line and the TPS Signal line.
#3
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Not sure Richy, im waiting for it to be delivered.
I bought it from Jamie on Nutz but the sites down for maintenance so cant get any of the details..
I guess i'm fooked if its the 1.8 type :(
I bought it from Jamie on Nutz but the sites down for maintenance so cant get any of the details..
I guess i'm fooked if its the 1.8 type :(
#9
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it looks exactly like the one he posted:
the problem is, the MT TB shaft extends past the body a good 1/2" and has a half moon keyway. The TPS fits over keyway and it rotates the center section of the switch.
stock 1.6L MT TPS switch with a vtps retro fitted within it to receive the TB shaft.
The AT TB shaft, however, is recessed within the body and has a brass flat stock with the ends turned up screwed to the end up it, the vtps has a matching "tabs" that grab the brass ends and turns when the TB pushes against it.
You can pick these sensors up for $5-10 all day long, but you really can't use them without the AT TB.
the problem is, the MT TB shaft extends past the body a good 1/2" and has a half moon keyway. The TPS fits over keyway and it rotates the center section of the switch.
stock 1.6L MT TPS switch with a vtps retro fitted within it to receive the TB shaft.
The AT TB shaft, however, is recessed within the body and has a brass flat stock with the ends turned up screwed to the end up it, the vtps has a matching "tabs" that grab the brass ends and turns when the TB pushes against it.
You can pick these sensors up for $5-10 all day long, but you really can't use them without the AT TB.
#10
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After getting a DOA Wells TPS, I got a '93 AT TPS, and got fuxored again due to the shaft mismatch like you said above. Basically, I never read in any other post that you need the whole TB, I thought only the TPS from the AT would match up on the MT TB.
Jim
Jim
#19
The EXACT same part is used on an Alfa v6. I got one off eBay for £3 shipped. The shaft on the 1.6 tb is a bit too long, I had too cut 9mm off the end of it. than fab some small simple brackets to hold it in place as the holes to mount it don't line up. But is does in fact work. We do have a 7mm shaft. Even fits the stock plug (5v and signal wires need to be reversed in Brains instructions for this one)
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