1995 Honda Accord EGR Troubleshooting

Tiny
ALAN KRAUSE
  • MEMBER
  • 1995 HONDA ACCORD
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 180,000 MILES
Recent check engine light came on and I scanned it and reads "low EGR flow" code. Is there a good way to test between the EGR valve and the EGR solenoid to determine which component is the likely problem?
Monday, June 29th, 2009 AT 11:26 AM

3 Replies

Tiny
THE ANSWER MAN
  • MEMBER
  • 17 POSTS
With the engine running. Use a hand held vacum pump (MIghty Vac) to apply vacum to the EGR valve, (about 10 inches of vacum should be sufficient) with the engine running. The engine should run rough or die with vacum applied. This checks the valve diaphragm. And the EGR ports. If the valve doesn't hold vacum the the EGR valve needs to be replaced.

To check the solenoid, you can plug a vaum guage into the hose comiing from the solenoid to the EGR valve rev up the motor (a road test while having someone monitor the vacum guage may be neccessary to see if the solenoid is opening. About 4 to 8 inches of vacum should be seen.
Was this
answer
helpful?
Yes
No
Monday, June 29th, 2009 AT 8:54 PM
Tiny
ALAN KRAUSE
  • MEMBER
  • 2 POSTS
Sounds like a sensible procedure, I will try it. Appreciate the help.
Was this
answer
helpful?
Yes
No
Tuesday, June 30th, 2009 AT 8:03 AM
Tiny
THE ANSWER MAN
  • MEMBER
  • 17 POSTS
No problem. I'll check back to see if it helped. I have had to replace a few of the solenoids in past repairs. If I hooked them to directly tobattery positive & ground while applying vacum to one of the vacum they seemed to ok, but were bad.
Was this
answer
helpful?
Yes
No
Tuesday, June 30th, 2009 AT 10:10 PM

Please login or register to post a reply.

Sponsored links