Check Engine Light Problems

[teamnvysionhb]

my check engine light is on and i checked the ecu and it gave me 3 codes which were:
code 6- coolant temperature
code 9- no.1 cylinder piston
code 17- speed sensor
can anyone tell me what each code means and what im supposed to do to fix the problems?

[CivicSi04']

i have a limited knowledge about codes but if you remove the battery cables from the battery connections it can reset your ecu and possibly shut the check engine light off. give it a try and drive it for a lil bit. if the light goes off and stays off most likely u never had a problem to begin with and it the light comes back on get it checked out by a proper mechanic with good diagnostic skills cuz if he can only read the codes and not diagnose the problem ur gonna wind up paying much more for parts and labor.

[simplegreen]

give some more background on the car.. is this fresh off a swap or you turned it on one day and it fucked up etc etc

[dustyb423dx]

depending on what civic you have year/model, there are a dew ways to turn off the light. on the 2000/2004 civic you push the distance reset button hold it in and turn your car on. after 3 seconds the light should go off.
i called a honda dealer and they wouldn't tell me. but i figured it out. and disconnecting the battery wont turn the light off. even worse now your cd player wont work till u put the code in. we never knew we had a code untill i called honda and they gave it to me.

[B18bEK]

In the engine bay fuse compartment there is a fuse that you have to pull to reset the ECU on 6th gens, might be true for other hondas/civics.

[NstyGrnHatch]

just dont clear the codes, usually the check engine light is on to tell you that something isnt right.

[DINANBLOWNBIMMER]

Originally posted by NstyGrnHatch@Feb 15 2005, 11:49 AM
just dont clear the codes, usually the check engine light is on to tell you that something isnt right.

Took the words right off my finger tips. Although I wouldn't have used usually, The check engine light is always on for a reason, just clearing it only gets rid of an annoying little light, not the reason it's on.

teamnvysionhb:

Code 7: ECT sensor (Engine Coolant Temp): If your car is not over heating there is a problem in wiring from ECU to sensor, sensor is unplugged, or the sensor is bad
Code 9: TDC Sensor (Top Dead Center):You motor is not coming to TDC properly (probably not the case) Wiring, sensor bad or unplugged
Code 17: VSS Sensor (Vehicle Speed Sensor): Defective circuit, bad or unplugged sensor.

[NstyGrnHatch]

good job on the codes there diamond.