Diagnostic Error Codes???

[Sonicxtacy02]

Ok i pulled codes from my car over the weekend and i was looking for input as to what i may need to do to fix. The first code was for the R02 inversion, i'm pretty sure that means i need to replace my oxygen sensor in the rear. The second code was 41 which i believe is the VRIS solenoid #1. Does that need to be replaced or is there something else i would need to look at?

[lazzyie]

inversion you can just clean it i believe, my vris solenoid was fine when i pulled the other one it was just the vac tube that ripped so you might try checking that...

[voltaire]

Don't you need a reader to read the codes on an MX3? That's what I've been told, although I haven't bothered to look. <P>fisaza@directvinternet.com

[David Coleman]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by voltaire:<BR><STRONG>Don't you need a reader to read the codes on an MX3? That's what I've been told, although I haven't bothered to look. <P>fisaza@directvinternet.com</STRONG><HR></BLOCKQUOTE><P>You should bother to look in the V6 FAQ forum, because it has a how to on checking your own codes.

[voltaire]

Thanks, newbie here.

[voltaire]

Oh cool! I actually had looked over the V6 FAQ previously, but I didn't realize that you had to change it to "Show all Topics" to see all the FAQ's. Looks like I have more reading to do! Thanks again

[voltaire]

Ok, so the FAQ answered a lot of questions. I being more used to Hondas (sorry), was used to an LED on the ECU for error codes. Now that I learned how to read the error codes on my 93 GS, you just know I couldn't wait to go out in the driveway and check it out. Based on that I have a few questions:<P>First of all, how many error codes can be stored at once by the ECU? Does it show the last few error codes generated regardless of duplicates? Or does it only store the same code once?<P>Second of all, and more importantly, I am get an 02 code which is "'NE2' crankshaft position sensor". The CEL has showed up a few times recently, at maybe 1 out of 50 startups. It usually only stays on for a minute after startup, and usually turning the ignition off and back on again clears it without it reappearing after that. Anyone ever have this problem?<P>Thanks,<BR>fisaza@directvinternet.com

[Sonicxtacy02]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by voltaire:<BR><STRONG><P>First of all, how many error codes can be stored at once by the ECU? Does it show the last few error codes generated regardless of duplicates? Or does it only store the same code once?<P></STRONG><HR></BLOCKQUOTE><BR>It can store as many codes as neccessary but i believe some codes are not memorized. As for your second question, i dont really understand it. If you're asking if you check the codes, get out of diag, check the codes again, will it still show the original stored codes. If so.. the answer is yes.

[voltaire]

Maybe it'll be easier to understand if I explain my situation better.<P>Currently my CEL is not indicating a problem, but it has in the past. I just checked it last night and it's blinking code '02'. So, this means that even though the problem isn't currently happening, the ECU remembers it from whenever it occurred before. <P>What if I had multiple problems that generated multiple different errors in the past? I want to know if I can be sure that this '02' code is the only error generated ever since my ECU was last reset, which I assume happens after a minute or so of disconnecting the battery.<P>Thanks

[voltaire]

I just read what I typed and figured out an even better way to relay what I'm looking for.<P>Suppose I let my brother whack my car around with a hammer so bad that my car has every single problem known to man. All the sensors are now thouroughly smashed. <P>In diag-mode, would my CEL (assuming that *it* still worked) sit there and blinkity-blinkity each and every single error-code? <P>Would it still remember each and every one of those codes until such time as the ECU is reset?<BR> <BR>Thanks

[David Coleman]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by voltaire:<BR><STRONG>I just read what I typed and figured out an even better way to relay what I'm looking for.<P>Suppose I let my brother whack my car around with a hammer so bad that my car has every single problem known to man. All the sensors are now thouroughly smashed. <P>In diag-mode, would my CEL (assuming that *it* still worked) sit there and blinkity-blinkity each and every single error-code? <P>Would it still remember each and every one of those codes until such time as the ECU is reset?<BR> <BR>Thanks</STRONG><HR></BLOCKQUOTE><P>Yes.

[Sonicxtacy02]

i'm still a bit lost... If the problem was no longer present but the ecu still stored to code, couldnt you just reset the ecu to remove it? [img]shrug.gif"%20border="0[/img]

[Custommx3]

yes, resetting the ECU, removes all CEL codes and resets it to the factory defaults. I believe it switches it to "learning mode", but thats just theory.

[Sonicxtacy02]

thanks for clearing that up barry

[voltaire]

While researching the '02' error code stored on my ECU from the past, I ran across something that relates to what I was asking before.<P>According to this site, there are some codes that are not memorized: <A HREF="http://www.sof.ws/probeaudio/checkengine.html" TARGET=_blank>http://www.sof.ws/probeaudio/checkengine.html</A> <P>I tried to copy & paste the chart but it doesn't come out to well. You'll have to check the site to see what I mean.