Jump to content
CaddyInfo Cadillac Forum

EGR Valve


Ebby

Recommended Posts


I sticking EGR will produce codes, like the PINDLE POSITION code. Here are a few of the EGR codes

P0400 - Exhaust Gas Recirculation Flow Malfunction

P0401 - Exhaust Gas Recirculation (EGR) Flow Insufficient

P0402 - Exhaust Gas Recirculation Flow Excessive Detected

P0403 - Exhaust Gas Recirculation (EGR) Solenoid Control Circuit

P0404 - Exhaust Gas Recirculation (EGR) Open Position Performance

P0405 - Exhaust Gas Recirculation (EGR) Position Sensor Circuit Low Voltage

P0406 - Exhaust Gas Recirculation Sensor A Circuit High

P0407 - Exhaust Gas Recirculation Sensor B Circuit Low

P0408 - Exhaust Gas Recirculation Sensor B Circuit High

P1406 - EGR Valve Pintle Position Circuit

P1407 - EGR Air Intrusion in Exhaust Supply to EGR Valve

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

Link to comment
Share on other sites

EGR's fail three ways

1) Stuck Open = Rough idle, difficult cold start, engine stalls

2) Leaking while closed = Not as bad as stuck open but in the same ball park

3) Stuck Closed = This is harder to diagnose... but usually you will get high NOS readings during an emissions check.. Some engines will knock and ping under load...

Good Luck

I agree with BByF... Most times N*s will issue a code.

caddy.jpg

Easin' down the highway in a new Cadillac,

I had a fine fox in front, I had three more in the back

ZZTOP, I'm Bad I'm Nationwide

Greg

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...