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Thread: 60 degrees commanded ignition timing

  1. #11
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    Quote Originally Posted by statesman View Post
    What map sensor are you using?
    Its a 3 BAR GM brick style sensor . Was running a turbo earlier , hence the 3 BAR sensor . I have a stock GM 1 BAR sensor laying around will try that . Still doesn't explain the excessive timing commanded by the ECU .What I can't understand is when there is nothing in spark table over 30 some degrees , where is it getting the numbers from ? I have a spare ECU laying around was debating switching it over , will have to buy a licence for it first though . Any other suggestions ?

  2. #12
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    All three codes show up at the same time and only under the stated conditions . The only other issue I've had it, was once I was cruising in the mountains going about 70 mph , it gradually started going lean , till it completely quit . I thought I had run out of gas or the fuel pump quit , even though the gauge indicated half a tank . Hooked up the efilive controller to see if there were any codes , there were none . Tried a calibration only reflash , still no go . Tried a full flash and it started right up . Boy that was a sigh of relief , I was 250 miles away from home , that would have been one expensive tow bill . I was going up a mountain pass , so gaining altitude quickly probably a 5% grade for 20 miles .

  3. #13
    Joe (Moderator) joecar's Avatar
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    Since you're running no-MAF, you want the MAF DTC to show up always, regardless of anything/everything else.

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