[Z06] Techron caused a gas guage problem?
Thread Starter
Instructor
Joined: May 2008
Posts: 238
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Techron caused a gas guage problem?
Hey guys,
So a few weeks back I used techron in my 2002 Z06 (23k miles) for the first time. A day after I used it the gas guage started going all wonky on me. Up until this point I never had an issue with my gas guage.
I figured it'll clear itself up eventually but today the guage went flat and won't go back up anymore. So my questions are:
1) What the hell is going on?
2) I've heard of people resetting it and having the guage go back up, how do I do this?
Thanks for the help guys!
So a few weeks back I used techron in my 2002 Z06 (23k miles) for the first time. A day after I used it the gas guage started going all wonky on me. Up until this point I never had an issue with my gas guage.
I figured it'll clear itself up eventually but today the guage went flat and won't go back up anymore. So my questions are:
1) What the hell is going on?
2) I've heard of people resetting it and having the guage go back up, how do I do this?
Thanks for the help guys!
6th Gear
Joined: Feb 2012
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http://www.z06vette.com/forums/f4/er...reading-12131/
May or may not apply. Repost from the forum. As NCOA member I've switched to all AMSOIL products & became a dealer. Products are superior. My opinion.
May or may not apply. Repost from the forum. As NCOA member I've switched to all AMSOIL products & became a dealer. Products are superior. My opinion.
Thread Starter
Instructor
Joined: May 2008
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I had read about the PCM reflash and may have to take it in and pay for it, but before I do that I'd wanna look at all my other options. For instance, everyone keeps saying that when they reset their PCM the guage goes back up, I'd like to know how this is done.
I'm also curious to see if this may have been caused by techron (since it happened a day after I put it in) or if running some mroe techron will help.
I'm also curious to see if this may have been caused by techron (since it happened a day after I put it in) or if running some mroe techron will help.
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
Highly doubt it was the Techron. Did you over medicate it, or use the recommended amount?
Thread Starter
Instructor
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I waited for the tank to be empty and filled 3/4 of a 20oz bottle, then filled the tank full.
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
You have to hold the reset button while viewing the trouble code you want to clear on the DIC.
Thread Starter
Instructor
Joined: May 2008
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Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
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Le Mans Master
Joined: Mar 2002
Posts: 5,955
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From: PNW
The "Check Gauges" light is different than the "Check Engine" light. Since there are no trouble codes, then apparently there is something wrong with the gauge/sending unit that does not set a trouble code. But the "Check Gauges" light is on because the gas gauge needle is on "E" or dead for some reason.
From the Owner's Manual:
Check Gages Warning Light This light will come on briefly when you are
starting the engine. If the light comes on and stays on while you are driving, check your gages to see if they are in the warning areas.
This light can come on for the following reasons:
From the Owner's Manual:
Check Gages Warning Light This light will come on briefly when you are
starting the engine. If the light comes on and stays on while you are driving, check your gages to see if they are in the warning areas.
This light can come on for the following reasons:
- Low Oil Pressure
- High Coolant Temperature
- High or Low Battery Voltage
- Low Fuel Level
Thread Starter
Instructor
Joined: May 2008
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The "Check Gauges" light is different than the "Check Engine" light. Since there are no trouble codes, then apparently there is something wrong with the gauge/sending unit that does not set a trouble code. But the "Check Gauges" light is on because the gas gauge needle is on "E" or dead for some reason.
From the Owner's Manual:
Check Gages Warning Light This light will come on briefly when you are
starting the engine. If the light comes on and stays on while you are driving, check your gages to see if they are in the warning areas.
This light can come on for the following reasons:
From the Owner's Manual:
Check Gages Warning Light This light will come on briefly when you are
starting the engine. If the light comes on and stays on while you are driving, check your gages to see if they are in the warning areas.
This light can come on for the following reasons:
- Low Oil Pressure
- High Coolant Temperature
- High or Low Battery Voltage
- Low Fuel Level
It seems like I have a few options form my research:
- Run some more techron and hope it clears up sulfur deposits
- Unplug and re-plug the fuel sender wires under teh car
- replace the sending units
So now I have one question; Can anyone show me a picture and point out which wires those are exactly?
Thanks for the help so far!
Le Mans Master
Joined: Sep 2003
Posts: 8,847
Likes: 795
From: Longview Texas
If you have not used Techron before, it could take more than one tank of gas to clean the fuel sender..
I would just run several tanks of fuel through it before I did anything else.
It still seems unlikely that the Techron would cause the sender to stop working...
Remember there are two tanks, so if you pour the Techron in a partially filled system, it may not mix evenly.
I would just run several tanks of fuel through it before I did anything else.
It still seems unlikely that the Techron would cause the sender to stop working...
Remember there are two tanks, so if you pour the Techron in a partially filled system, it may not mix evenly.
Last edited by TEXHAWK0; May 21, 2012 at 08:06 PM.
Team Owner
Joined: May 2001
Posts: 25,057
Likes: 1,265
From: Virginia
St. Jude Donor '11
Yea that's the case here.
It seems like I have a few options form my research:
- Run some more techron and hope it clears up sulfur deposits
- Unplug and re-plug the fuel sender wires under teh car
- replace the sending units
So now I have one question; Can anyone show me a picture and point out which wires those are exactly?
Thanks for the help so far!
It seems like I have a few options form my research:
- Run some more techron and hope it clears up sulfur deposits
- Unplug and re-plug the fuel sender wires under teh car
- replace the sending units
So now I have one question; Can anyone show me a picture and point out which wires those are exactly?
Thanks for the help so far!
As you can see here...not any sulfer buildup on these cards...
Last edited by Yello95; Jan 10, 2013 at 11:45 AM.
