on my 87 crx si. 1.5L FI motor, the PGM-FI light comes comes in the dash after the motor idles for a couple minutes.

I removed the seat and looked at the light on the ecu, and what i saw was rather strange.

* The ecu has 4 red L.E.D. lights on it. The middle 2 lights are solid red, the other two are not lit. *

I thought that the ecu was supposed to blink rather than have 1 - 4 lights on. - either way, im new at OBD-0 and have no idea how to read this or how to interpret it into a usable code.


Any help will be greatly appreciated.


i just bought the car, but here is what has happened so far. Car drove fine, then would not start. finally would idle but die if u gave it gas.. a few days later it ran but then died while on my test drive.

I replaced fuel filter. now it runs but the PGM-FI light comes on. I have been afraid to do another road test until I know what this code is.

My clock in the dash fades in and out continuously, dont know if those could be related or not.

 

surely somebody knows OBD-0

 

hope you can read this - kind of fuzzy

 

so the old pre obd ecus show the code in bianry rather than count the blinks. learn somthing new evreyday

 

you are the man !

what I could make out were the symptoms: High idle speed during warmup, High idle speed, and Hard starting during low temperatures.

Now for the possible causes, I cannot make them out.

code 6 - EDITED

can this cause the car to die on me while driving ? or is it strictly a temperature related problem


Modified by ITR 1102 at 10:51 PM 11/21/2005

 

it says:
disconnected TW sensor connector
open circuit in TW sensor wire
faulty TW sensor

TW sensor is engine coolant temp sensor

 

and thats code 6 not 42. thats binary so add the lights on together. I.E. if 8 and 4 and 1 are on it's 8+4+1= 13 code 13

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DieMaster &raquo;</TD></TR><TR><TD CLASS="quote">and thats code 6 not 42. thats binary so add the lights on together. I.E. if 8 and 4 and 1 are on it's 8+4+1= 13 code 13 </TD></TR></TABLE>



you are right ! http://www.we-todd-did-racing....3D%3D

code 6 explains TW sensor. you might know i get all the information i need right when im leaving town for a week.

 

fyi, tw sensor is right under the dizzy

 

what the hell.... never seen that before.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by droppedcrxsi &raquo;</TD></TR><TR><TD CLASS="quote">fyi, tw sensor is right under the dizzy</TD></TR></TABLE>

honestly, I didnt notice the idle being off or anything.... Could this cause me any problems with the car actually running ? Is it necessary to replace or fix the TW sensor if it is not causing any problems ?

 

still need to know.<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITR 1102 &raquo;</TD></TR><TR><TD CLASS="quote">

honestly, I didnt notice the idle being off or anything.... Could this cause me any problems with the car actually running ? Is it necessary to replace or fix the TW sensor if it is not causing any problems ?</TD></TR></TABLE>

 

ive counted up to 80something and i quit.... i guess i just have a code 1?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITR 1102 &raquo;</TD></TR><TR><TD CLASS="quote">

honestly, I didnt notice the idle being off or anything.... Could this cause me any problems with the car actually running ? Is it necessary to replace or fix the TW sensor if it is not causing any problems ?</TD></TR></TABLE>
shouldn't be a problem - try resetting the ECU and see if the code goes away - could be intermittent