Is the TPS adjustable in the 94?

[NEEDA5.0]

I know you can adjust it on the fox, how about the SN95? What wire is hot?

 

[Rootus]

No, not adjustable. And not meant to be adjusted, the EEC will baseline whatever the TPS is at when you turn the key.

 

[mystang94gt]

Yeah its nothing like the fox one unfortunately. I was hoping to use it to fix my idle but no luck.

 

[95snoozer]

what are you talking about non adjustable

lyou can loosen the screws, drill out the holes and adjust the TPS, then tighten back down.

am I wrong hairy?

 

[Rootus]

what are you talking about non adjustable

lyou can loosen the screws, drill out the holes and adjust the TPS, then tighten back down.

am I wrong hairy?

You can drill the holes out and turn it, and get a different voltage -- but it won't have any effect. The EEC baselines at whatever the closed throttle voltage is, as long as it's not waaaay out of spec (if it is, you'll get a code).

For example, my Fox body throttle body has the TPS at 0.85v at closed throttle. At 0.89v, the EEC detects the status as part throttle. And at 3.75v or above the EEC switches to WOT.

The only thing to check the TPS for is that the voltage goes up smoothly and linearly as you increase the throttle position.

Dave

 

[jetuomi]

I should have posted my results here earlier, but, using the TWEECER, I found that (in my case) I could increase TPS to 1.035 volts (and beyond) while maintaining a "CLOSED" throttle status.. There was no affect in driveability, and, in fact, I like the more aggressive "linear" curve associated with this. I adjusted the throttle position WOT function in Tweecer to keep WOT at the same "relative" voltage.. I have been driving this way with a TPS of 1.015 now for weeks and I actually like the results..

On the thread, we concluded in this thread that FOX body's are static between around .980 while SN95 5.0's have a wide range of .980 to 1.020 where you don't even need to worry about NOT being in Closed Throttle Position..

I hope this makes sense..

 

[95snoozer]

You can drill the holes out and turn it, and get a different voltage -- but it won't have any effect. The EEC baselines at whatever the closed throttle voltage is, as long as it's not waaaay out of spec (if it is, you'll get a code).

For example, my Fox body throttle body has the TPS at 0.85v at closed throttle. At 0.89v, the EEC detects the status as part throttle. And at 3.75v or above the EEC switches to WOT.

The only thing to check the TPS for is that the voltage goes up smoothly and linearly as you increase the throttle position.

Dave

awesome,

I wondered why my car ran fine at 1.256 for 2 years

 

[nmcgrawj]

So when you do the fox body swap theres no need to worry about where the tps is at? Atleast not exactly where its at?

 

[Rootus]

So when you do the fox body swap theres no need to worry about where the tps is at? Atleast not exactly where its at?

Not unless you switch to an A9L computer. The 94/95 computer doesn't really care what TPS or TB you have, all it sees is voltage.

 

[Zero Signal]

Yeah my voltage reads 1.5-2 volts (TB shut) on the volt meter, but logs correctly in the TwEECer.

 

[nmcgrawj]

Not unless you switch to an A9L computer. The 94/95 computer doesn't really care what TPS or TB you have, all it sees is voltage.

So when you use a tweecer to use the A9L settings, is that considered using a A9L comp?

 

[Rootus]

So when you use a tweecer to use the A9L settings, is that considered using a A9L comp?

Nope. To get an A9L you'd have to swap the actual EEC itself. All the TwEECer can do is change the calibration on the EEC, it can't make it change identities.

Dave

 

[nmcgrawj]

So when you use the tweecer for the A9L calibration, do u have to set the TPS like you would if you had a A9L comp. or would you not really care like if you still had your 94-95 calibration?

Sorry for the on-going questions...

 

[Rootus]

So when you use the tweecer for the A9L calibration, do u have to set the TPS like you would if you had a A9L comp. or would you not really care like if you still had your 94-95 calibration?

Sorry for the on-going questions...

You do not use an A9L calibration unless you have an A9L computer. If you have a 94/95, then your calibration is for the CBAZA strategy that the 94/95 computer uses. Very similar calibration settings, but not identical. The TPS baselining behavior is a fundamental property of the 94/95 computer, it's not part of the calibration.

It sounds like you're mixing up terminology a little . "Calibration" is just a bunch of settings -- timing, fuel, etc. Different models of EEC have similar settings, but not always identical.

Dave

 

[Slow5.0]

ITS adjustable
On my I can go from 0.81 to 1.02 volts with looseing two screews , BUT if we re drilled those two holes on TPS (right and left) we could adjust even more

 

[Rootus]

ITS adjustable
On my I can go from 0.81 to 1.02 volts with looseing two screews , BUT if we re drilled those two holes on TPS (right and left) we could adjust even more

You didn't read the whole thread, did you?

 

[Slow5.0]

Hehehe , for real I didn't read whole thread just two on top

 

[Rootus]

Hehehe , for real I didn't read whole thread just two on top

I figured as much

Dave

 

[95snoozer]

LOL

 

[nmcgrawj]

You do not use an A9L calibration unless you have an A9L computer. If you have a 94/95, then your calibration is for the CBAZA strategy that the 94/95 computer uses. Very similar calibration settings, but not identical. The TPS baselining behavior is a fundamental property of the 94/95 computer, it's not part of the calibration.

It sounds like you're mixing up terminology a little . "Calibration" is just a bunch of settings -- timing, fuel, etc. Different models of EEC have similar settings, but not always identical.

Dave

Thanks for your help so far Dave, I am just trying to grasp exactly what a tweecer does when you use the A9L calibration or for my future plans the 95 Cobra R (5.8L) to our 94/95 computer. So i see the TPS "characteristics" of our computer will be the same. Slowly but surely im getting this Tweecer stuff....