[crazy_sumo]

Hey,

I have a question for you guys. My check engine light turns on occasilonaly, it last like 2 minute, then it turn off for couple days, then it come back.

Do you guys know, what are the frequent problem that may cause this. I have a ford escort 2nd 1.9 LX.

tnx

 

[Teal95]

My '95 LX is doing that currently. Autozone may or may not be able to pull the code for you (I kept trying to on mine, but as soon as I hooked up the reader, the light would go off and the code wouldn't display) I ended up taking it to the shop that I used to work at, and pulled up three codes. One indicated a lack of switching on the O2 sensor, the second was for the fuel trim being at the max adaptive limit at cruise (likely caused by the O2 sensor not switchin and reading lean) and the last was a MAF sensor code.

I'm in the process of getting the funds for a replacement O2 sensor and cleaned the MAF so hopefully that'll take care of it.

In my case the light would come on while I was cruising at part throttle and would shut off when I went to full throttle/heavy load.

If you can pull some codes post them here and maybe I can give you an idea of where to go.

Pat

 

[97DragScort]

what year is the car ? - thats the decideing factor between OBD I (95-)and OBD II (96+)

 

[crazy_sumo]

ford escort 96.

I need to know where to connect to the computer in the car.

 

[97DragScort]

uder the dash drivers side near the fuse box -

OBD II codes + explanations:

http://www.feoa.net/modules.php?name=Fo ... c&p=299849