Im getting code 3 sometimes, does anyone know what would cause this. a map sesor shouldnt go bad. it doesnt come on all the time either maybe once every 2 wks. any help is appreciated


Modified by hondachris1994 at 11:30 AM 8/14/2008

 

Code 2 or code 3?

 

Title says code 2, but post says code 3.

???

A code 2 is for an oxygen sensor "B" and isn't applicable to any 92-95 Civic, but I suppose it could be a jumped code on an OBD2 96-00 Civic?

Code 3 is MAP sensor, and yes they can go bad. Check the plug and wiring to the sensor, and if need be, swap another one on from another vehicle.

Year, make, and model of your vehicle would help us help you much better, as would the exact code you're throwing.

 

sorry code 3(fixed)

 

Its a 94 hatch with B16

 

Is this a new code that has just popped up, or a code that has been there since the swap?

 

it just popped up a cpl wks ago it runs rough when the code is thrown, I turn the car off then back on then its fine. like I said it may only throw the code once every 2 wks. My car wont idle rt sometimes that could have somethin to do with it

 

I thought I might have a vaccuum leak somewhere but then the idle should b messed up all the time, but the car idles fine sometimes, im clueless

 

sometimes my car will stall and it wont start rt back up either... Any ideas?

 

Have you tried swapping in a good known working MAP sensor?

If you have a MAP problem the car will stall, run like crap, etc.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C5-EH2 &raquo;</TD></TR><TR><TD CLASS="quote">Have you tried swapping in a good known working MAP sensor?

If you have a MAP problem the car will stall, run like crap, etc.</TD></TR></TABLE>I havent tried another map sensor yet, but when the chreck engine light comes on it does run like crap, but when it stalls the light doesnt come on. Ima take it off in a lil while and inspect it, and make sure the lil o ring on the sensor looks ok

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondachris1994 &raquo;</TD></TR><TR><TD CLASS="quote">sometimes my car will stall and it wont start rt back up either... Any ideas?</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondachris1994 &raquo;</TD></TR><TR><TD CLASS="quote">I havent tried another map sensor yet, but when the chreck engine light comes on it does run like crap, but when it stalls the light doesnt come on. Ima take it off in a lil while and inspect it, and make sure the lil o ring on the sensor looks ok</TD></TR></TABLE>

A faulty MAP sensor will make your car run like ****, yes.

Seeing as the problems are typical of a bad and/or faulty MAP sensor, and seeing as you're throwing the code for a MAP sensor, I would change the MAP sensor...and yes, they do go bad.

Just my $.02 though.