PDA

View Full Version : Reseting the ecu


ez1286
09-30-2003, 08:26 PM
Does anyone know how to reset the ecu on a 1989 240sx.

bl200sx
09-30-2003, 08:32 PM
well I'm not sure it will work, but disconect the battery for about 20min, or if there is a Auto zone near by, see if they will reset it.

prInce
09-30-2003, 09:31 PM
I have an issue of my own... but first, here're the instructions to reset the ECU on a '95 240 (they worked on my 90 S13 before so give it a shot)
http://www.240sx.org/faq/articles/ecm_reset.htm

ok, past weekend i washed my car, waxed it and made it look realllly nice. after that, I started the car and parked it in my garage (i didn't see any engine check light or maybe i didn't notice it)

Next morning I start my car to drive to work and the "Check Engine" light is on. Just now I got back from work and following the instructions provided on the link above, I reset the ECU. The check engine light goes away after showing the error code but comes back on when i shut it off and start the car again. Here's the error code:
3S 4F 6S 5F 10S 5F
(numbers are the # of blinks
S=SLOW BLINK
F=FAST BLINK)

so what does this error code mean? if someone has an FSM can they pleeeeeease provide me with what this means?

THANKS IN ADVANCE! :)

prInce
09-30-2003, 09:37 PM
oh wait, i think the error code equals this:
1st one: 34, which is:
Knock Sensor

2nd one: 65, which is:
CYL 4 Misfire

3rd one: 105, which is:
EGRC Solenoid/V

ok that's from a little research of my own.. (pat on the back :D)

now for solutions... am i in big sh*t? :(
what's a knock sensor? sorry for this question but i really don't know!

cyl 4 misfire, so does that mean i need new plugs/wires or is that something really deep?

EGRC Solenoid/V <-- wtf is that???

I just bought this car off a privated dealer like 2 weeks ago... why didn't these errors show up b4? :-S

please help me :cry:

prInce
10-01-2003, 10:03 AM
anyone? please help!

aznpoopy
10-01-2003, 10:35 AM
you should've created a new thread for this. ppl generally look down on 'jacking' other ppl's threads. try creating a new one asking for help and you'll probably get replies. above all do a search -> red button on top. good luck.

prInce
10-01-2003, 11:08 AM
oh ok... i'll create a new thread... i've done tons of researching and found answers for the knock sensor... still need help with the misfire and the EGR thing