will a bad egr temp sensor throw a code 32 on startup, i am not really familiar with the syste orm did some searches and not clear on it from what i read sounds like the ehr system does nothing at idle so was wondering why code 32 on startup. I had to rewire my temp sensor but not sure if it works or not i am not sure if the orignal wire was even connected becaus eit seemed like the wire was severed any info would be great thanks

 

Code 32 only shows up when the computer operates the EGR system (while driving)
and doesn't see the EGR temp sensor working.
This could be because of faulty wiring and not that the sensor itself is bad

Trouble Code 32 EGR SYSTEM FAULT

Code 32 indicates a malfunctioning EGR valve,
a malfunctioning EGR temperature diagnostic switch, or an open or short to ground in the circuit

Have you cleared the codes and seen if it comes back?

 

when the sensor gets grounded it will cause a 32. I would clear it if it comes back on check for shorts on this circuit and even leave he stupid thing in plugged.

http://www.ecklerscorvette.com/corve...1986-1989.html

 

unfortunatly yes it does come back i just replaced my runners and plenum when noticed the temp wire was severed spliced in a new wire and now i have code 32 can there be a vacume line off any were

 

on your ecm pin c15 dk green. if this wire is grounded on start up the code 32 will show. disconnect the egr temp/ diagnostic sensor.

 

thats what i did and the code went away what is the proper way to fix it

 

in order to acces the sensor will have too pull the plenum and replace the sensor with a know good one or the link I provided. Gm has discontinued this years ago. Most guys just leave the stupid thing unplugged when it fails.

 

http://chevythunder.com/fuel%20injec...temp%20sw..htm

 

thanks guys for the help love this forum

 

TP - If you ever get into a bind on a restoration and cannot repair the OEM switch satisfactorily, you can look at the Emerson-Thermodisc Type 48T bimetal switches. About 300-350° should work nicely. http://www.thermodisc.com/productDet...p?ProductID=89