My cousin has a 90 Accord EX. The check engine light stays on even after they replaced the O2 sensor, which is what the diagnostic test said to replace. Any help would be appreciated.

 

does it throw a code?

 

clear the code and then see if it comes back on. I replaced the o2 in my car the light was still on so I cleared the code problem fixed.

 

You clear the code by unplugging the negative battery terminal right? They did that and the code is still on.

 

THere must something else wrong check for other codes. Behind the right kick panel there is a little plug 2 prong. Use a jumper wire and put in the terimals count the flashes from the check engine light . I'll get the code sheet from work so let me know. By the way my car is a 92 ex-r and 2 clear the codes I had 2 pull the back-up radio fuse for 10 secs. Under the hood in the fuse box 7.5 amp.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tunerdude &raquo;</TD></TR><TR><TD CLASS="quote">My cousin has a 90 Accord EX. The check engine light stays on even after they replaced the O2 sensor, which is what the diagnostic test said to replace. Any help would be appreciated.</TD></TR></TABLE>
What's the code?