code 32 set on highway?
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Joined: Dec 2004
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From: Daytona Beach Florida
code 32 set on highway?
Since I've had my vette (year&half), I've had the code 32.
I cleared the code and didn't get it back until I ran it on the highway.
I remember reading a post about this, and tried to find it on the search, but that only led to frustration
.
On my scanner it shows the egr opening and closing, the O2 is all over the place (I understand that's a good thing).
At idle my tps is ay .44?
I saw the code get set as I was driving on the highway, becauase I had my scanner on my lap and was checking specifically for that.
Any ideas?
Thanks?
I cleared the code and didn't get it back until I ran it on the highway.
I remember reading a post about this, and tried to find it on the search, but that only led to frustration
.On my scanner it shows the egr opening and closing, the O2 is all over the place (I understand that's a good thing).
At idle my tps is ay .44?
I saw the code get set as I was driving on the highway, becauase I had my scanner on my lap and was checking specifically for that.
Any ideas?
Thanks?
Team Owner
Joined: Sep 2001
Posts: 62,127
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From: Athens AL
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EGR solenoid/switch usually, it just happens to function in hwy use more because you meet all EGR conditions there.
TPS should be .54V
TPS should be .54V
Last edited by vader86; May 7, 2006 at 12:32 AM.
Thread Starter
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From: Daytona Beach Florida
Originally Posted by vader86
EGR solenoid/switch usually, it just happens to function in hwy use more because you meet all EGR conditions there.
TPS should be .54V
TPS should be .54V
Can I adjust my TPS using my scanner?
Melting Slicks
Joined: Mar 2003
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From: Oklahoma City Oklahoma
This is just going on my thread about the dreaded "code 32"....
Somebody mentioned that you'll get the code on the highway, especially when you're using the cruise. Something about the throttle being in a constant position for 5 or 10 minutes.
Somebody mentioned that you'll get the code on the highway, especially when you're using the cruise. Something about the throttle being in a constant position for 5 or 10 minutes.
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From: Daytona Beach Florida
Originally Posted by CMYC4GO
This is just going on my thread about the dreaded "code 32"....
Somebody mentioned that you'll get the code on the highway, especially when you're using the cruise. Something about the throttle being in a constant position for 5 or 10 minutes.
Somebody mentioned that you'll get the code on the highway, especially when you're using the cruise. Something about the throttle being in a constant position for 5 or 10 minutes.
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If it sets the code, then you need to troubleshoot EGR. You'll need to go through the manual.
See my website for TPS/IAC cleaning procedure, you need to do this before replacing any EGR parts. Always fix things at the front of the intake tract first.
See my website for TPS/IAC cleaning procedure, you need to do this before replacing any EGR parts. Always fix things at the front of the intake tract first.
Thread Starter
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Joined: Dec 2004
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From: Daytona Beach Florida
Originally Posted by vader86
If it sets the code, then you need to troubleshoot EGR. You'll need to go through the manual.
See my website for TPS/IAC cleaning procedure, you need to do this before replacing any EGR parts. Always fix things at the front of the intake tract first.
See my website for TPS/IAC cleaning procedure, you need to do this before replacing any EGR parts. Always fix things at the front of the intake tract first.
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Does the 91 have the egr Temp switch on the crossover?If so,see if its broken or coming apart,very common cause of code 32 on certain L98's...same with egr vacuum lines,make sure they all fine and not broken.
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Check the EGR valve itself, too. The diaphragm on them can break or they can get clogged up with carbon to the point they no longer function.
Instructor
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From: woodinville washington
the 91 doesnt have a temp switch, same thing happened to my 91, EGR solenoid is probably the culprit, mine was the park nuetral switch on the shifter, but that is the rare case
the EGR system comes on when the motor is up to operating temp and you are at a cruising throttle, it wont come on at high throttle. Thats why it comes on durring highway driving, that means the system will not turn on. The system itself is designed to reduce combustion temps by reintroducing exhaust gas into the intake, the LT and LS motors dont use is because they have reverse cooling.
the EGR system comes on when the motor is up to operating temp and you are at a cruising throttle, it wont come on at high throttle. Thats why it comes on durring highway driving, that means the system will not turn on. The system itself is designed to reduce combustion temps by reintroducing exhaust gas into the intake, the LT and LS motors dont use is because they have reverse cooling.
Last edited by yellow dragon; May 8, 2006 at 09:23 PM.
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Originally Posted by yellow dragon
the 91 doesnt have a temp switch, same thing happened to my 91, EGR solenoid is probably the culprit, mine was the park nuetral switch on the shifter, but that is the rare case
the EGR system comes on when the motor is up to operating temp and you are at a cruising throttle, it wont come on at high throttle. Thats why it comes on durring highway driving, that means the system will not turn on. The system itself is designed to reduce combustion temps by reintroducing exhaust gas into the intake, the LT and LS motors dont use is because they have reverse cooling.
the EGR system comes on when the motor is up to operating temp and you are at a cruising throttle, it wont come on at high throttle. Thats why it comes on durring highway driving, that means the system will not turn on. The system itself is designed to reduce combustion temps by reintroducing exhaust gas into the intake, the LT and LS motors dont use is because they have reverse cooling.
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From: Athens AL
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Originally Posted by yellow dragon
how did the LT4's get around egr if the LT1 had it
LS engines dont use it because they just dont need to, not because of the cooling.
Melting Slicks
Joined: Mar 2003
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From: Oklahoma City Oklahoma
Originally Posted by yellow dragon
the EGR system comes on when the motor is up to operating temp and you are at a cruising throttle, it wont come on at high throttle. Thats why it comes on durring highway driving, that means the system will not turn on. The system itself is designed to reduce combustion temps by reintroducing exhaust gas into the intake
Instructor
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From: Wentzville MO
My 92 did the same thing. I got a can of cat converter safe throttle body spray cleaner and gently lifted the pintle and sprayed it around the opening. Been fine for over a year now. Got that tip here by the way.
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From: Athens AL
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Originally Posted by CMYC4GO
Will an inoperable or deactivated EGR system cause combustion chamber temps to reach critical levels, or does it only involve a mild increase in temps?