Code 32 (Page 1/1)
kett48 MAY 17, 01:05 PM
Code 32 egr. The valve seems ok. Is there something else that would give me a 32 code ?
82-T/A [At Work] MAY 17, 01:23 PM

quote
Originally posted by kett48:

Code 32 egr. The valve seems ok. Is there something else that would give me a 32 code ?



From the Online Fiero Service Guide:


Code 32 - Exhaust Gas Recirculation system (V6 only)

The EGR solenoid should not be energized and vacuum should not pass to the EGR valve. The diagnostic switch should close at about 2 inches of vacuum. With vacuum applied, the switch should close. Check the EGR vacuum lines for leaks. Replace the EGR solenoid. Replace the EGR valve.


It could be that you have a vacuum leak somewhere. How's idle? Is it kind of high? When fully warmed up, your car should idle at 800 rpms.
theogre MAY 17, 01:30 PM
V6 w/ DTC 32 is likely EGR Solenoid or Switch on it is bad/dirty.
ECM know nothing about the EGR valve unless maybe cause big vacuum leak etc that trips other DTC's.

Use search or wait until others to get more data.

------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)


The Ogre's Fiero Cave

kett48 MAY 17, 02:59 PM

quote
Originally posted by 82-T/A [At Work]:


From the Online Fiero Service Guide:


Code 32 - Exhaust Gas Recirculation system (V6 only)

The EGR solenoid should not be energized and vacuum should not pass to the EGR valve. The diagnostic switch should close at about 2 inches of vacuum. With vacuum applied, the switch should close. Check the EGR vacuum lines for leaks. Replace the EGR solenoid. Replace the EGR valve.


It could be that you have a vacuum leak somewhere. How's idle? Is it kind of high? When fully warmed up, your car should idle at 800 rpms.



Idles fine a 900 rpm when it warmed up. I have also replaced the egr tube a while ago . It just gave me the 32 code when I was highway driving 65 mph. Doesn't seem to give a "service engine light " at lower speeds, which is mostly the way it is driven.
Patrick MAY 17, 04:59 PM

Sounds like a classic example of the EGR solenoid not activating.
buddycraigg MAY 21, 11:28 PM
hmm
I seem to think that someone spent a lot of time and effort writing up something about code 32.

https://www.fiero.nl/forum/Forum2/HTML/045528.html

[This message has been edited by buddycraigg (edited 05-21-2024).]

Mickey_Moose MAY 23, 12:00 PM

quote
Originally posted by kett48:


Idles fine a 900 rpm when it warmed up. I have also replaced the egr tube a while ago . It just gave me the 32 code when I was highway driving 65 mph. Doesn't seem to give a "service engine light " at lower speeds, which is mostly the way it is driven.



I have the same issue on my car.

I know it is not the EGR or the solenoid as those have been changed with a known working one, and there are no vacuum leaks. I did try dumping the recorded data using tunercat, but I cannot open the file (apparently this is a known issue for a very small number of people). Was going to try WINALDL, but then winter showed up and I haven't worked on the car since. But I now suspect that maybe the wrong restrictor washer is/was installed on the EGR so maybe that is causing the issue?

For the record, I am running the GM 3.4l HT crate engine, and this problem seemed to show up after the swap (I mainly ignored it before in the past, even ran with deleted ECM code for a bit, but would like to fix it).

[This message has been edited by Mickey_Moose (edited 05-23-2024).]

Yellow-88 MAY 23, 03:22 PM

quote
Originally posted by buddycraigg:

hmm
I seem to think that someone spent a lot of time and effort writing up something about code 32.

https://www.fiero.nl/forum/Forum2/HTML/045528.html




Yes, that is a rather complete write up.
I've discovered that code 32 is set by the diagnostic switch. The EGR system can be fine and set a code 32.
The dead giveaway for EGR failure is a wicked hot exhaust system. Exhaust gas recirculation is about cooling the fire so as not to oxidize nitrogen.
The emissions test will see high NOX if your EGR system is not working. (When they used to sniff your pipes.)

Yellow-88