Other undefined codes...
05-30-2003, 10:49 AM
#1
Member
Thread Starter
Join Date: May 2003
Location: Toronto, Canada
Posts: 65
Other undefined codes...
I recently put in an air intake and the engine light came on. When I checked the computer, it flashed the codes 34, 41, and 91. I have the factory manual, and none of these codes were found. I removed the intake and the light stayed after flashing back 55, or no problems. Anyone know what these codes are?
05-30-2003, 11:00 AM
#2
Supporting Maxima.org Member
Join Date: May 2002
Posts: 1,082
first go here:
http://forums.maxima.org/forumdisplay.php?forumid=9
click:
"Important: ECU fault code diagnosis ("HELP! MY CHECK ENGINE LIGHT IS ON!!") "
then you are here:
http://forums.maxima.org/showthread....hreadid=104931
click:
"What the code means:
http://vbxmaxima.8m.com/ecudecoder.html"
then you are here:
http://vbxmaxima.8m.com/ecudecoder.html
READ THE STICKIES!
3-4 is Knock Sensor
4-1 is Intake Air Temp Sensor
9-1 is Front Right Htd 02 sensor heater
you may need a new intake temp sensor, i cant imagine it being very expensive. then you might also need that o2 sensor, those are a bit pricey. there are ways to MAYBE fix the one you have now by soaking it in brake cleaner and stuff. and dont worry about the KS, it comes up all the time with other probs. fix the other two things first. then your CEL should go away. but make sure to keep checking for the 3-4 code, it WILL NOT cause the CEL to come on, but the KS does go bad after 60-100k miles.
good luck.
http://forums.maxima.org/forumdisplay.php?forumid=9
click:
"Important: ECU fault code diagnosis ("HELP! MY CHECK ENGINE LIGHT IS ON!!") "
then you are here:
http://forums.maxima.org/showthread....hreadid=104931
click:
"What the code means:
http://vbxmaxima.8m.com/ecudecoder.html"
then you are here:
http://vbxmaxima.8m.com/ecudecoder.html
READ THE STICKIES!
3-4 is Knock Sensor
4-1 is Intake Air Temp Sensor
9-1 is Front Right Htd 02 sensor heater
you may need a new intake temp sensor, i cant imagine it being very expensive. then you might also need that o2 sensor, those are a bit pricey. there are ways to MAYBE fix the one you have now by soaking it in brake cleaner and stuff. and dont worry about the KS, it comes up all the time with other probs. fix the other two things first. then your CEL should go away. but make sure to keep checking for the 3-4 code, it WILL NOT cause the CEL to come on, but the KS does go bad after 60-100k miles.
good luck.
05-30-2003, 11:30 AM
#5
Senior Member
Join Date: Mar 2003
Posts: 506
Not that I know of...... If you put on an intake or something like that, the cars ECU will throw a code and light up the check engine light..... Usually, you can check the code to make sure its nothing serious, reset the ECU and drive for a few days while the ECU learns that there is an Intake. The same thing happens when you get a Y-Pipe installed.
05-30-2003, 04:01 PM
#7
Supporting Maxima.org Member
Join Date: May 2002
Posts: 1,082
Originally posted by sandman1098
Not that I know of...... If you put on an intake or something like that, the cars ECU will throw a code and light up the check engine light..... Usually, you can check the code to make sure its nothing serious, reset the ECU and drive for a few days while the ECU learns that there is an Intake. The same thing happens when you get a Y-Pipe installed.
Not that I know of...... If you put on an intake or something like that, the cars ECU will throw a code and light up the check engine light..... Usually, you can check the code to make sure its nothing serious, reset the ECU and drive for a few days while the ECU learns that there is an Intake. The same thing happens when you get a Y-Pipe installed.
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