Checked TPS voltage.

[Edmond]

How much are we talking about for a new TPS?

 

[Vettefan87]

How much are we talking about for a new TPS?

I don't know I am afraid to check...:L

 

[Vettefan87]

I don't know if this is what I need or not. If so it isn't that much... http://www.madvet.com/shop?frame=3.900

 

[Edmond]

I don't know if this is what I need or not. If so it isn't that much... http://www.madvet.com/shop?frame=3.900

If it's the $60 part, that doesn't seem to be too much. I just hope that it solves the problem, though.

 

[Vettefan87]

Yeah it probably won't but oh well it is only money... I guess I will order that too with the muffler eliminators and see.

 

[bradfordsvettes]

i do not think you will see much of a change and probably no change in performance that you will feel only my 2 cents :W Steve

 

[Vettefan87]

Yeah the car did not seem to run any better, but it still isn't at 5 volts. I don't know at this point. I guess it will get ordered with the muffler eliminators.

 

[Moonunit 451]

They can be tested, but I don't recall the proceedure. Also, I think you can pick one up at a local parts store, maybe they can even test it for you.

 

[Vettefan87]

They can be tested, but I don't recall the proceedure. Also, I think you can pick one up at a local parts store, maybe they can even test it for you.

I think I might be able to get access to a scantool, would that tell me if it is bad, or not performing the way it should. At this point I am not trusting anything. If that says it is "ok" is it really ok? The throttle performance switch is 100 bucks, and says do not use with chips or programmers... The TPS sensor is 60, do you guys think I should just put the sixty up for the cause and buy it? I am still almost hoping that tomorrow if I check the TPS it is bad. I almost hope it is bad, so maybe that is the problem.

 

[wishuwerehere82]

If you can get some time on a scantool, it will tell you TPS voltage, Fuel/air mixture, O2 voltage, whether you are running open loop or closed loop, Timing, and a whole bunch of other stuff. It will give you all the info the computer has at it disposal. Get your rocker issues fixed first, then scan it. See if you can get some highway time with the scantool hooked up. That may give you some insight into what is happening with your power curve.

 

[bradfordsvettes]

I do not believe you will see a real big change in the figures you have posted . At least with the scan tool you can check for a smooth transition in the voltage curve and for drop out spots in the switch steve

 

[WhalePirot]

Part o this can be misleading. Remember that the idle speed is programmed into the ECM. Changing the idle adjustment screw will alter the position of the TPS at idle, hence the voltage fed to the ECM.

I believe the manual is less-than-specific because it really doesn't matter if it is all that precise.

The filing procedure makes sense while being a novel idea. I may have to recheck my voltages.

 

[Vettefan87]

If you can get some time on a scantool, it will tell you TPS voltage, Fuel/air mixture, O2 voltage, whether you are running open loop or closed loop, Timing, and a whole bunch of other stuff. It will give you all the info the computer has at it disposal. Get your rocker issues fixed first, then scan it. See if you can get some highway time with the scantool hooked up. That may give you some insight into what is happening with your power curve.

Well I started it up today after sitting from 8:30 last night, and I dont really know if it lifter ticked or not, my dad was listening and he also said no. I know with the headers, and the mufflers even at idle it is a little raspy, maybe that is what I heard at work. That and it was pouring raining so that didn't help. I backed down the voltage a little to .67 since the hot idle in gear was over a thousand. I need to get a different hose clamp I think for the EGR tube that was leaking a little too. Well I am off to hook it up to the scan tool. I am keeping my fingers crossed, for what I don't know yet.

 

[fatboyreyn]

Okay, maybe we are getting somewhere now... How would I adjust this to get the extra little voltage out the low side, and the little over half volt at WOT? Wish, could you explain how you filed the slots? I am sure the TPS sensors are similar for your 82, and my 87, if not identical. Thanks.

I think you guys are getting to picky with the voltage. Manual says +/- .075 volts...thats a .15 volt range. so .50 to .60 is fine. :bash

 

[Vettefan87]

I still have not really fixed the issue of the TPS. I have it set to where the car runs good, but sometimes it idles in park at 1200 RPMs and in gear at about 800 RPMs. But then again sometimes it is 7-800, and in gear about 5-600 RPMs. It is very annoying but I almost dont want to adjust it because the car is running so well. I need to check the baseline voltage and see where it is.
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