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post #1 of 19 (permalink) Old 06-27-02, 11:46 PM Thread Starter
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Black soot in exhaust - carbon clean?

I noticed my fairmont puffs a tiny (almost invisible) cloud of black smoke (soot?) out of the exhaust on start up. Is this just a sign that I should get a full carbon clean in the engine, like the injectors etc...?

My engine has only done 115,000kms and service in the last 1000kms. I also have a batch of Optimax in the tank too. Not sure if that has anything to do with it.

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post #2 of 19 (permalink) Old 06-28-02, 12:59 AM
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Mine did that with a batch of optimax, ran real rough for the first 10-15secs when dead cold with black smoke out the exhaust. Filled up with a different brand and it went away!

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post #3 of 19 (permalink) Old 06-28-02, 01:04 AM Thread Starter
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You recon just stick to regular unleaded? Or change the premium brand?
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post #4 of 19 (permalink) Old 06-28-02, 05:07 PM
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Might have a faulty coolant sensor? Check the ecu for errors.
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post #5 of 19 (permalink) Old 06-28-02, 09:28 PM
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Quote:
Originally posted by 94ED_Fairmont
You recon just stick to regular unleaded? Or change the premium brand?
I always run premium as I get better economy with it, Optimax may not be causing it at all but it would be worth a try to see if it still does it with another brand.

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post #6 of 19 (permalink) Old 06-28-02, 10:57 PM
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Yeah bud i run my car on optimax have been for the last 18 months ive owned it. I replaced my oxygen senor due to its fault and now i get hardly and black soot on my exhaust. Also take your car to a mechanic and get it tuned for optimax.
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post #7 of 19 (permalink) Old 06-29-02, 01:35 AM Thread Starter
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ok - so I can:

a) Check the ECU for errors(how?)
b) Have the ECU reprogrammed to take optimax or do I get a unichip etc...?

How much am I looking at for these options, also are any of these covered by warranty if faulty. I have 12 months on most things.
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post #8 of 19 (permalink) Old 06-29-02, 10:36 PM
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You dont have to do anything to the ECU to tune a car for higher octane fuel!
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post #9 of 19 (permalink) Old 06-30-02, 05:03 PM Thread Starter
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Thats what I thought - the ony thing you can do is get a 'powerchip' of sorts and remap the fuel curve and advance more precisely than the ECU already does with Hi-Oct fuel. Right?
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post #10 of 19 (permalink) Old 07-01-02, 09:35 AM
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try Synergy 8000

i find it nicer
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