91 honda crx si

b16 obd o pr3 ecu

hondata 2b

hasport wiring harness


NOTHING I can do to remove that damn code 6. ECT engine coolant temp sensor. I have tried everything I can think of. anyone out there know ANYTHING ab out this stupid code and how to make it go bye bye? I tried searching!

No dyno until code goes bye bye.

thanks to anyone that tries to help, I am so frustrated.

 

maybe there is a break in the wire did you check it from sensor to ecu harness for continuity?

 

yes sir I did.

continunity is there.

 

Is there any way someone could show me a complete wiring diagram from ecu to plug for the ect sensor?

that would be a help, all i have is what i have found on h-t and in my helms.

 

ok... here we go step by step...
-check if light is on... make sure its code 6
-reset ecu
-is engine check light still on...? if not the problem is intermitant check connections..
-if light still on warm car up till fan comes on then dissconnect the senor and messure the resistance should be 200-400ohms (if not replace the sensor)
-turn igniton on
-if its on messure volatage between red/white wire and ground..(should be 5volts)
if not problem in that wire repair it..
-if on messure voltage between red/white(+) and green(-) terminal(should be 5volts) if not around 5 volts repair that wire that goes to ecu c12
if nothing fixes ur problem replace ecu with known good one

 

thats exactly what my helms says

 

do it and ull solve ur problem
trust me....
unless you have been fiddling wit ur wiring or something theres no reason not to be able to solve ur problem...

 

true, i think my wiring is fucked up from being messed with.


what pin is it on the ecu? maybe i can just rewir it.

 

c12 if im not mistaken

 

hmm does anyone know how to hard wire from the ecu?

 

if you didnt know what pin it was on the ECU, then you didnt follow the trouble tree.

the only thing the flowchart can't find is a damaged pin at the ECM, ECM plug, sensor, or sensor plug, unless you are using the correct test harnesseslike the dealer.

 

well its pretty simple
you cut the pin wit some room to wire and solder or you remove pin and make whole new wire but go throught the steps and i bet its just a bad sensor