[Z06] Paging RB and other LS1Edit Users
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,684
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From: Jacksonville Florida
Paging RB and other LS1Edit Users
As you might remember I was having 02 sensor problems last week. two sets of codes on each of the four. All four had the code that relates to the sensor being slow to warm up. The front ones had actually stopped sniffing all together.
Turns out I had accidently run leaded gas in the car a few times.
New front sensors installed last Friday, car runs great (set new personal best at the track Friday night) - pulling great. Saturday morning start it up and she throws a code. I know it is not the front sensors as it is driving fine all the way to the Biltmore and back.
Hooked up the scanner today - both of the front (new) 02's are throwing the heater code again. No way is there still lead in the fuel.
Question: Is there anything in the LS1 Edit tuning (we turned off the rear sensors because I was running without cats) that could be causing this??
Les
Turns out I had accidently run leaded gas in the car a few times.
New front sensors installed last Friday, car runs great (set new personal best at the track Friday night) - pulling great. Saturday morning start it up and she throws a code. I know it is not the front sensors as it is driving fine all the way to the Biltmore and back.
Hooked up the scanner today - both of the front (new) 02's are throwing the heater code again. No way is there still lead in the fuel.
Question: Is there anything in the LS1 Edit tuning (we turned off the rear sensors because I was running without cats) that could be causing this??
Les
Le Mans Master
Joined: Jun 2001
Posts: 7,328
Likes: 518
From: Admit Nothing, Deny Everything, Make Counter Accusations.
Re: Paging RB and other LS1Edit Users (ZO6Les)
What is the exact code you are getting? I need to check my shop manual on this.
Is there any way that you can get your modified .ls1 file from your tuner? I could take a look at that as well to see what was changed.
Is there any way that you can get your modified .ls1 file from your tuner? I could take a look at that as well to see what was changed.
Race Director
Joined: Oct 1999
Posts: 10,961
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From: Dawsonville Ga
Re: Paging RB and other LS1Edit Users (ZO6Les)
Les,
If you don't get good answers here you might try asking in the scan & tune section.
http://forums.corvetteforum.com/zeroforum?id=91
:)
If you don't get good answers here you might try asking in the scan & tune section.
http://forums.corvetteforum.com/zeroforum?id=91
:)
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,684
Likes: 0
From: Jacksonville Florida
Don't Forget the Simple Stuff :)
Well I feel kind of stupid but since two pretty good mechanics missed the obvious maybe I shouldn't feel so bad.
Since the saga of the sensors shutting off on the Z06 began the answer was fuel or ECM. Replacing the front sensors seemed to fix the CE codes for a short time.
I asked again today what is common to both front sensors - again answer was fuel or ECM. So we got it up on the lift and tested for voltage at the 02's - zip, zero. Check the fuses - you guessed it, blown fuse all this time! Why the ECM waited 100 miles or so after the new sensors to throw a code is a mystery.
So $184 later ($164 for 02's and $20 install, fuse and work today was free) the car is back running great, and no codes.
This is clearly a case of forgetting the simple stuff - lesson learned!
Thanks to all for your input and ideas!
Les
:crazy: :crazy:
[Modified by ZO6Les, 11:35 PM 9/10/2002]
Since the saga of the sensors shutting off on the Z06 began the answer was fuel or ECM. Replacing the front sensors seemed to fix the CE codes for a short time.
I asked again today what is common to both front sensors - again answer was fuel or ECM. So we got it up on the lift and tested for voltage at the 02's - zip, zero. Check the fuses - you guessed it, blown fuse all this time! Why the ECM waited 100 miles or so after the new sensors to throw a code is a mystery.
So $184 later ($164 for 02's and $20 install, fuse and work today was free) the car is back running great, and no codes.
This is clearly a case of forgetting the simple stuff - lesson learned!
Thanks to all for your input and ideas!
Les
:crazy: :crazy:
[Modified by ZO6Les, 11:35 PM 9/10/2002]
Le Mans Master
Joined: Jun 2001
Posts: 7,328
Likes: 518
From: Admit Nothing, Deny Everything, Make Counter Accusations.
Re: Paging RB and other LS1Edit Users (ZO6Les)
Too bad you didn’t send me the trouble codes last week when I asked for them. I could have saved you $185. :D
Step one of the diagnostic charts reads “Inspect the HO2S fuse for an open”. This is Fuse 15 in the underhood box and it is 15A. It supplies voltage to all 4 O2 sensors. See the pictures below.
The fuse should not have blown. Make sure you did not replace the 15A fuse with a higher rated fuse as this could damage your wiring or cause a fire. Keep a close eye on the fuse. If it blows again then you have a short to ground. :cuss
The diagnostic check only runs under certain operating conditions. This may explain why the code did not trigger until now. You also may have recently developed a short to ground somewhere in the HO2S ignition voltage circuit. If the fuse goes again check the O2 wiring.
Step one of the diagnostic charts reads “Inspect the HO2S fuse for an open”. This is Fuse 15 in the underhood box and it is 15A. It supplies voltage to all 4 O2 sensors. See the pictures below.
The fuse should not have blown. Make sure you did not replace the 15A fuse with a higher rated fuse as this could damage your wiring or cause a fire. Keep a close eye on the fuse. If it blows again then you have a short to ground. :cuss
The diagnostic check only runs under certain operating conditions. This may explain why the code did not trigger until now. You also may have recently developed a short to ground somewhere in the HO2S ignition voltage circuit. If the fuse goes again check the O2 wiring.
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,684
Likes: 0
From: Jacksonville Florida
Re: Paging RB and other LS1Edit Users (rbartick)
RB,
Lesson learned :) In my own defense I didn't know how to pull the codes from the DIC and didn't think to write down the codes when all this started. Oh well, I have had lessons that cost me a lot more than $184.00.
I lay all my dirty laundry for all to see in the hope that someone else will not make the same mistake.
Les
Lesson learned :) In my own defense I didn't know how to pull the codes from the DIC and didn't think to write down the codes when all this started. Oh well, I have had lessons that cost me a lot more than $184.00.
I lay all my dirty laundry for all to see in the hope that someone else will not make the same mistake.
Les
