Got one on my syclone the other day, comes and goes while im drivning. sometimes will say on for a while while driving other times it just stays off. my water temps are at the second notch from the 100 mark (not sure if its supposed to be like this or not, maybe no t-stat causing C.E.L???) Also i noticed my kenne bell j&s spark retard moniter with knock and a/f doesn't work (just the a/f part) maybe o2 sensor? anyway how do i go about pulling the code(s)?
Check engine light
- Thread starter rush6432
- Start date
midnightbluS10
Banned
Re: Check engine light
Locate the diagnostic port under the dash.
Take a paperclip and bend it to a U shape.
Put one end in the very right terminal on the top row of the diagnostic port.
Put the other end in the terminal to the left, still on the top row.
Turn key to ON, but DO NOT START THE TRUCK!(click here to see what happens if you do)
Watch the light.
it should flash once, pause, flash twice. It will repeat that sequence two more times.
If any codes are stored, it will give them next.
If the code was 33, it will flass three times pause, and flash three more times. Then a longer pause, and repeat.
Each code is flashed three times.
Take pen and paper and write down all codes stored.
After pulling all codes, rest computer by pulling ECMB fuse for a while.
http://www.s10blazers.com/service_engine_soon.htm
Locate the diagnostic port under the dash.
Take a paperclip and bend it to a U shape.
Put one end in the very right terminal on the top row of the diagnostic port.
Put the other end in the terminal to the left, still on the top row.
Turn key to ON, but DO NOT START THE TRUCK!(click here to see what happens if you do)
Watch the light.
it should flash once, pause, flash twice. It will repeat that sequence two more times.
If any codes are stored, it will give them next.
If the code was 33, it will flass three times pause, and flash three more times. Then a longer pause, and repeat.
Each code is flashed three times.
Take pen and paper and write down all codes stored.
After pulling all codes, rest computer by pulling ECMB fuse for a while.
http://www.s10blazers.com/service_engine_soon.htm
Last edited:
midnightbluS10
Banned
Re: Check engine light
http://www.syty.net/forums/showthread.php?t=34702&highlight=service+manual
Try the search function. It actually works.
http://www.syty.net/forums/showthread.php?t=34702&highlight=service+manual
Try the search function. It actually works.
![Quickstop [UK]](/forums/data/avatars/m/5/5165.jpg?1570199786){kind=avatar}
Quickstop [UK]
Combating adversyty.
Re: Check engine light
what did it turn out to be? I have the same thing and think it is my IAC
what did it turn out to be? I have the same thing and think it is my IAC
o2 sensor harness was not connected all the way