Code 32: Replace EGR valve or switch?

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Feb 20, 2004 | 01:33 PM

onedef92

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Code 32: Replace EGR valve or switch?

I can never remember which. I have a 1992 LT1 and get the dreaded "Code 32" on my ECM occasionally. Do I replace the EGR VALVE or SWITCH to cure this common C-4 problem? :confused:

Feb 20, 2004 | 02:06 PM

VR'92

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Re: Code 32: Replace EGR valve or switch? (onedef92)

I'm thinkin valve **** :cheers:

Feb 20, 2004 | 02:18 PM

onedef92

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Re: Code 32: Replace EGR valve or switch? (VictorRussell'92)

Quote:

I'm thinkin valve **** :cheers:

I think you're right. On a previously written post-it note, I sribbled "EGR valve. $39" :yesnod:

Feb 20, 2004 | 06:52 PM

Pete K

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Re: Code 32: Replace EGR valve or switch? (onedef92)

Switch is an $8 gamble that fixes it 80% of the time :cheers:

Feb 20, 2004 | 07:34 PM

skybolt31

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Re: Code 32: Replace EGR valve or switch? (Pete K)

I just had this on my 86 and it was the valve, but it is easy enough to pinpoint the problem:

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>.
65Z01
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Re: Trouble Code 32 EGR Failure (skybolt31) 7:16 PM 2/15/2004

First check the EGR solenoid vacuum & electrical connections that you may have touched when changing the stat.
If all is well there, use the EGR diagnostic method on my site to isolate the problem cause. In your case the EGR temp switch is not signaling the ECM that the EGR is active after the ECM has commanded the EGR valve to open.
_______

My 1988 Z01 #65 Site
East Coast Corvette Challenge Site
Time Slip Best ET/Speed/HP = 13.07sec/104.3mph/300hp(crank)
Normalized Best ET/Speed/HP = 13.12sec/103.8mph/295hp(crank)
DynoJet 248H Best HP/Torque = 247hp@4,500rpm/324ft-lb(rwheels)
Best 60' = 1.834sec, 2,000rpm TC, 2.59, GY Eagles, 1,800rpm launch
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

I just put a vacum on the egr valve and checked to see if the switch closed. I could feel the tube assembly getting hot, so I knew the egr valve was working, and the switch neve closed. In any event, the switch is only $8 and much easier to replace than the egr valve.