Please help.

I have a 99' LS 5spd. My check engine light has been on for a while. I followed the instructions given in a previous post. I jumped the two wires with A paper clip, and watched the CEL flash. I'm either getting six long flashes followed by eight short = 68. Or it could be seven long followed by seven short = 77. I don't see either of these codes listed. Did I do something wrong???????????

 

just take it to autozone if its drivable.
theyll tell you the code and what it means and all of that.

 

check these two links. make sure you are doing it right.

http://www.c-speedracing.com/faq/06.php

http://www.c-speedracing.com/faq/05.php

 

Yes, those links are where I got the instructions. But the codes I got are not listed.

 

Autozone will do it for free, just take it there and save yourself the trouble. Much easier.

 

Thanks guys. I'm going to Autozone today.

 

I got a check engine light for a good 2 years now, My shop and the dealership could not figure it out there is no code for it. Every time we reset the light it just came on like after a month or 2 I'm thinking 2 things 1 my charcoal canister got water in it from the vent tube or 2 my cat converter for the exhaust could be to small for the back pressure (I'm putting a high flow cat once I get the money).

I reset the light the night before emision and it pass the next day, lol

 

ok here is what I got:

P0420 Catalyst System Efficiency Below Threshold (bank1)

What does that mean? Do I need a new converter? I need to pass smog next month.