4th Generation Maxima (1995-1999) Visit the 4th Generation forum to ask specific questions or find out more about the 4th Generation Maxima.

EGR Flow malfunction ??????

Old Aug 22, 2004 | 01:01 AM
  #1  
Reaction021's Avatar
Thread Starter
Senior Member
 
Joined: Aug 2003
Posts: 130
EGR Flow malfunction ??????

today the engine light was on i check it with a scanner and the code came out to EGR Flow Malfuction anyone know what's this mean any info provided would be greatly appreciate

95 Maxima GXE 5 Speed 140K
Old Aug 22, 2004 | 04:42 AM
  #2  
deezo's Avatar
Supporting Maxima.org Member
iTrader: (3)
 
Joined: Apr 2001
Posts: 14,285
From: FV, NC
I know those things get clogged really bad. You may need to take it apart to really know.
Old Aug 22, 2004 | 09:18 AM
  #3  
Ceasars Chariot's Avatar
Old Maxima Legend
iTrader: (16)
 
Joined: Apr 2003
Posts: 6,058
From: Paraparaumu, NZ
0302
Diagnostic Trouble code 0302 points to a problem with the Exhaust Gas Recirculation system. The malfunction is detected by the Engine Control Module when no EGR flow is detected under conditions which call for EGR. Possible causes include:
- The electrical harness or connectors (valve circuit open or shorted)
- The EGR valve is stuck closed
- Weak or dead battery
- The EGR passage is clogged
- Faulty EGR temperature sensor circuit
- A leak somewhere in the exhaust system

The EGR Volume Control Valve may be tested with an ohmmeter. Disconnect the electrical connector. Looking at the connector half which is attached to the EGRVCV with the latch at the 12 o'clock position you will see two rows of three terminals. The top row is numbered 1-3, right to left. The bottom row is numbered 4-6, right to left. Measure the resistance between these terminal pairs:
2 1
2 3
5 4
5 6
... all resistance values should be 20.9-23.1 ohms at 68 degrees F.

Reconnect the EGRVCV connector halves. Turn the ignition switch ON OFF repeatedly. Verify that the EGRVCV shaft moves smoothly forward backward according to the ignition switch position.

The Exhaust Gas Temperature Sensor may be tested with an ohmmeter. The specifications are ...
- at 32 degrees F, 0.68-1.11 Megohms
- at 122 degrees F, 0.09-0.12 Megohms
- at 212 degrees F, 0.017-0.024 Megohms

0303
Diagnostic Trouble Code 0303 indicates a problem with the front Oxygen Sensor on the left cylinder bank. The left bank is also called the front bank. It is cylinders 2,4,6. A normal signal sweeps back and forth between 0.2 volts and 0.8 volts. This malfunction was detected when the Engine Control Module received a signal from the sensor which was a constant value of approximately 0.3 volts.

Possible causes include ...
- Harness or connectors (the sensor circuit is open or shorted).
- Defective Oxygen Sensor
Old Aug 22, 2004 | 12:06 PM
  #4  
Reaction021's Avatar
Thread Starter
Senior Member
 
Joined: Aug 2003
Posts: 130
can i get an pic of where the EGR is located i'm a noob to this Thanks
Old Aug 22, 2004 | 12:10 PM
  #5  
DAVE Sz's Avatar
Hooooooonda.....
iTrader: (2)
 
Joined: Jan 2004
Posts: 8,082
From: Chiiiii
sig..........................
Old Aug 22, 2004 | 12:14 PM
  #6  
Reaction021's Avatar
Thread Starter
Senior Member
 
Joined: Aug 2003
Posts: 130
thanks for the pic
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
TallTom
5th Generation Maxima (2000-2003)
57
Oct 14, 2025 05:16 PM
shilov
4th Generation Maxima (1995-1999)
13
Feb 19, 2024 09:40 PM
bumpypickle
4th Generation Maxima (1995-1999)
3
Sep 19, 2015 01:07 AM
Justin Kroll
5th Generation Maxima (2000-2003)
7
Sep 2, 2015 11:06 AM


Thread Tools
Search this Thread

All times are GMT -7. The time now is 10:21 AM.