Code 14 TPS / Check Engine Light

[triggerx]

Alright so I recently swapped my ecu, which I really have no clue if the ecu was originally a 90.
I assumed it was and did the pin swap accordingly.

However after the swap Ive been throwing a code 14.

Not only that but after the swap my factory boost gauge no longer works.

The new ecu was from a 93 gsx, where ther any other wires I should have changed?

 

[steve]

Make sure you needed to swap, that your new ECU is really a turbo ECU (open it up and check the board) and log the TPS. It needs to be at least 0.42v with the throttle closed and should be between 0.48v and 0.52v unless your running DSMLink where 0.63v is what they suggest even though the factory spec should also work fine.

 

[triggerx]

So my check engine light comes off and on, and I finally realized what triggers this.
Accelerating....
I pulled the code a while back and realized it was the tps but havent bothered to fix it for a month.

Is this going to seriously damage my car if I keep driving it?
Exactly what is it doing to hurt the performance of my Car?

 

[turboJAKE]

depends on what its seeing if its seeing the tps wide open its dumping fuel and if its seeing it closed its starving for fuel. of course your computer will read the o2 and see its running rich or lean and adjust but you should really just fix the problem and your car will thank you

 

[9!'clipseDOHC]

Whats wrong with the other thread you started on this subject. No one is going to be able to help you if you keep jumping around. Pick one thread and let us help you. Follow the advise that is given, don't just go make a new thread. You had Steve (by far one of the most knowledgable DSM ECU and wiring guys on this site) ready to help you on your last TPS CEL thread but instead of checking what he recommended you went and started a new thread on the same exact problem. You will never get your issue resolved like that.
http://www.dsmtuners.com/forums/newbie-forum/383184-code-14-tps.html

 

[triggerx]

im really sorry, I completely forgot honestly.

Is this the TPS?
Duralast/Throttle Position Sensor (TPS4081) | 1990 Eagle Talon 4 Cylinders U 2.0L MFI Turbo DOHC | AutoZone.com
Also what is the failure rate on these parts in general?

And Ill do what you suggested steve, But yeah I checkeed the ecu and its a ok.

But yeah I needed to swap the ecu ### mine was causing a misfiring an injector

 

[steve]

That is in fact a 90 style TPS replacement. After 20+ years they do tend to wear out or the wires get brittle and break.

 

[triggerx]

Found a few in the junkyard however they came off N/A 2.0l cars, will these TPS Still work in my 90 awd tsi?
Dam everyone cuts the sensors, its a shame, but I picked up enough to splice the wires back together and make a full tps sensor.

 

[19Eclipse90]

Yes, 2.0L non-turbo and turbo models use the same TPS.

 

[triggerx]

Alright well first Im looking into my ecu to make sure nothings wrong there, It looks right to me, however I dont know. I did a 92 (I believe) into a 90 ecu swap, and ever since then Ive been getting the code. So who knows. The guy I got it from was pretty cool, and I doubt he gave me a n ecu with a problem without telling me.

Anyways im double checking to make sure I did the ecu swap right.
If im correct, 6 should be a green wire, and 14 should be green/white after the swap correct?

http://www.dsmtuners.com/forums/articles-tuning-ecu/246467-how-identify-ecu-pin-numbers.html

EDIT
Im starting to think my wires are mixed up. Is it possible to run the car without a wire going into pin 6? Doesnt seem I actually have one.

Ok so What would happen If I accidently swapped pins 11 and 19 instead?
I dont think 11 would throw a code honestly, thats the abs, but 19 is the TPS. I think I might have swapped these two pins instead.



Which means 14 never got swapped since I dont have a 6?
Heres an image of my harness
http://img40.imageshack.us/i/pinsi.png/

 

[steve]

After the swap to 91+ style pinout pin 14 is green and pin 6 in green/white.
If somebody swapped a NT harness you wouldn't have a pin 6.

 

[triggerx]

Maybe thats what happened, Do I just not worry about pin 6 and swap pin 14 in pin 6's place?
because I think you might be right about the NT Harness, Ive never had a green wire at pin 6s location, its just blank, all the other wires are there tho.

I mean other than the tps check engine light, the car runs pretty good.

 

[triggerx]

alright hopefully this info helps you all out to see what Im talking about.

You must be logged in to view this image or video.

edit-----12 is actually yellow/red

These colors and numbers were taken by looking at the harness from the side where the wires actually come in. And Im reading it from the top left going right, then the second row.

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these are how my wires are layed out. If im correct, I didnt swap pins 14 and 16, I accidently swapped 11 and 19.
So I swapped the Throttle Position sensor with the ABS.

However wouldnt this mean that 4 of my pins are messed up? with 6 being non existent.

Also according to this...

My 11 should have been red and blue

 

[steve]

If you have ABS. Otherwise I think it should be the open/unused pin.

 

[triggerx]

Dont all 90 tsi awd cars have ABS?

Which means I have a few wires mixed up.


FINALLY PROBLEM SOLVED!
TPS Wasnt the issue, it was the wiring on the harness.
looks like there was a green wire going to the abs that didnt belong, so I moved pin 11 to pin 6. Then I did the ecu swap so I swapped that 6 with 14, which means no wire running to the abs.

Overall no check engine light so no complaints here.

Thanks alot for the help and tips everyone, Steve, TurboJake,19eclipse90,9!'clipseDOHC, much appreciated.

Time to clean up the mess and get the car back together

 

[steve]

Dont all 90 tsi awd cars have ABS?

No, since ABS and Rear LSD were exclusive of each other until 92 not having ABS was preferred by many. Also Talon were often ordered by the dealer/factory with less features than an Eclipse to give them a price advantage (cheaper).

 

[phantom_19]

We just started my dads 1G tsi AWD..we installed the DSMlink and logged what was happening. The car doesnt idle the way its supposed to. We have 880cc injectors and a MHI big 16G. We set the MAF sensor to 2G. Left the fuel and airflow settings stock. It seems the car is getting too much gasoline because you can smell it in the exhaust gas.

Here is my problem. When we started to log, the TPS shows 5.00volt on idle. Front O2 is also very high. It logs 1.10V at idle. FP is 40 psi.
Should i starve the car of fuel by decreasing deadzone?

 

[9!'clipseDOHC]

We just started my dads 1G tsi AWD..we installed the DSMlink and logged what was happening. The car doesnt idle the way its supposed to. We have 880cc injectors and a MHI big 16G. We set the MAF sensor to 2G. Left the fuel and airflow settings stock. It seems the car is getting too much gasoline because you can smell it in the exhaust gas.

Here is my problem. When we started to log, the TPS shows 5.00volt on idle. Front O2 is also very high. It logs 1.10V at idle. FP is 40 psi.
Should i starve the car of fuel by decreasing deadzone?

Are you getting a code 14 CEL? If not you should start your own thread instead of jacking this one with an unrelated issue.

Do you have a 2g maf on the car or is that just what you set it to? Did you calculate the injectors and base fuel pressure to get your global fuel?

Once everything is set right, check your thtottle cable to make sure there is no tension on it and the throttle plate is closing completly. Make sure your base idle is properly set, check the vfaq for a how to. Start a stream with the engine off and push the pedal to the floorand release it. Right click on the strem and select TPS Adjust. This will adjust your tps volts and throttle position.

To dial your injectors in, idle at normal operating temp, make sure you're in closed loop, and get your AirFlowPerRev to .25 by adjusting your MAF Comp sliders. Then adjust your injector deadtimes until your Combined FTs are hovering around 0. Keep going back and forth until you get both where you want them.

Hope this helps.

 

[phantom_19]

Thnx DOHC..ill try all of your advice tomorrow

 

[steve]

Here is my problem. When we started to log, the TPS shows 5.00volt on idle. Front O2 is also very high. It logs 1.10V at idle.

Both of these indicate some sort of wiring problem or ECU damage.

Did you actually install a 2G MAF?