check engine light | Ford Escort Owners Association (FEOA)

check engine light

Discussion in '2nd Gen 1991-1996 1.8L DOHC' started by Andrew_1122, Apr 1, 2007.

  1. Andrew_1122

    Andrew_1122 Guest

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    Hey all, well my check engine light keeps coming on periodically. In no way does the performance decrease or anything noticeable. It only comes on, sometimes, after I've been driving around 10km. Its at very random times and it will stay lit until I shut the car off. All will be fine, til 3-4km down the road when it comes on again. It seems to only come on at highway speeds usually. there is nothing else illuminated just the check engine light. I'd just take the bulb out but I'd like to know what would cause it. I did swap out the ECU about 2 weeks ago, along with ignition coil, fuel pump etc. So basically, what on our motor will cause the check engine light to illuminate so I can work down the list to figure this out.... Thank you very much in advance,

    Andrew

    edit* I've also been driving this car for about 2 weeks with it coming on, if something was going, I think it would have broke by now... not sure though.
  2. TurboSupra12

    TurboSupra12 FEOA Member

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    Don't bother trying to 'narrow it down'.

    Get a paper clip and find out exatly what the problem is. Turn the car off, and go under the hood to the diagnostics box above the drier side strut tower. Under the lid is a diagram. Jump pin 10 to GRD (or GND or something. Either way, it means ground). Once it connected, hop in the car, turn it to 'on' (dont start it) and count the flashes on the dash. The CEL will blink.

    If it blinks once, waits a bit, then blinks 4 times fast, it's code 14. It will keep repeating the code. You might find you have more than one code in there.
  3. digitalvehicle

    digitalvehicle Guest

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    With my 85 cougar, the "service engine" light would come on about every 10,000 miles. It did that to tell me to change the oil, and I just had to press the trip and mph/kph buttons at the same time. I have no idea if the escorts have anything like that.

    Otherwise, do what supra said or get ahold of a scan tool and check the codes that way. I think there is a list on here that says what the blinks mean.

    If you tried to narrow it down, you would be checking every sensor on the engine. Even then, with some like the o2 sensor, it could have the right settings, but be slow in sending them.

    Cole
  4. therieldeal

    therieldeal FEOA Member

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    no the escort doesnt turn the light on every X miles, it should never come on unless there is a problem.

    theres no "scan tool", you just use a paper clip and watch how many times the CEL blinks.

    i agree, check the codes before you go replacing random sensors. what sucks is when a sensor goes out of range but is still within limits... no codes or CEL but the car runs like poo because its getting the wrong signal! if i had to guess i'd say your O2 sensor is going, but who knows.

    -jon
  5. rimmer

    rimmer Guest

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    Actually there is a scan tool... I have the new Snap on Scanner and it hooks right up to that box. I scanned mine.. my engine light only came on occasionally .. and it turned out to be the coolant temp sensor... it would come on just once in a while .. and then go right back out... and that is what my scanner said it was... and I changed it .. about 3 mins. and has never come back on. it is only a 20$ sensor
  6. TurboSupra12

    TurboSupra12 FEOA Member

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    What a waste of money, buying a scan tool for this car. It's not like an OBDII car, were it can tell you all that info. It just tells you the same thing a paper lcip will tell you.

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