1994 Grand Marquis EGR Code 332 Fix

Avatar
GM94
  • MEMBER
  • 5 POSTS
Hi all. I have a 1994 Grand Marquis, it has 135k miles on it. I just got it about 4 months ago. I started to get an "check engine" light steady after i drive the vehicle for about 5 to 15 minutes. If i turn the vehicle off it resets the light off and it will be back on after 5 to 15 mins of driving again. This only happens if i drive the vehicle, if i leave it running, the light doesn'tcome on. Also my airbag light is flashing a code (51 or 15 not sure). I use an actron code scanner (CP9015) and i'm getting code 332 (insufficient EGR flow detected). A friend of mine told me to replace the EGR valve. The vehicle is also smoking white a bit when you drive it. Once it is running it doesn't smoke anymore.

The question i have is: How can i get the EGR valveout? Because it has a short section of pipe that goes to the exhaust pipe and there is virtually no space to remove it. Any suggestions? I don't know if the airbag light and/or smoking had anything to do with it. Any help will be great. Thanks.
Mar 25, 2006 at 5:40 AM
Advertisement
Avatar
PEPPERMRJ
  • ✓Experienced Mechanic
  • 1,158 POSTS
Before you remove the EGR check if you would the DPFe sensor. Ford has had some past issues with these units. Have it checked first.

good luck and let us know. :)
Mar 25, 2006 at 2:12 PM
Avatar
GM94
  • MEMBER
  • 5 POSTS
The problem was the EGR ports that run from the intake area to the EGR valve. They were almost completly obstructed by carbon deposits. I cleaned it all and it is perfect now. No codes on the scanner now and no more check engine (so far). Thanks for the help.
Mar 26, 2006 at 1:34 PM
Avatar
PEPPERMRJ
  • ✓Experienced Mechanic
  • 1,158 POSTS
Congrats and thanxs for sharing your fix. :D
Mar 27, 2006 at 6:50 AM

Suggested Repair

Before replacing the EGR valve, check the DPFE sensor. Also inspect the EGR ports between the intake and the EGR valve for carbon blockage and clean them; cleaning nearly blocked ports cleared code 332 and the check engine light.

Conversation Summary

The owner of a 1994 Grand Marquis reported a steady check engine light after 5 to 15 minutes of driving, scanner code 332 for insufficient EGR flow, some white smoke while driving, and a flashing airbag light. Access to the EGR valve was very tight. An expert advised checking the DPFE sensor before removing the EGR valve. The owner later found the EGR ports from the intake to the valve were almost completely blocked by carbon; cleaning them cleared the code and turned off the check engine light.

Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle