LTFTs and VE tuning, does engine use an average?
04-11-2006, 11:36 AM
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LTFTs and VE tuning, does engine use an average? Ok, I'm tuning my VE table using LTFTs.
Right now, my bank one is positive, and my bank two is negative. (about an 8% difference on average between the two).
Does the engine use an average of these numbers to decide what to do (add or reduce fuel), or is each bank truly independent?
On average, my LTFTs are slightly negative, but I don't want the engine dumping fuel on one side, and leaning on the other when I punch the gas.
Is there a way to tune each bank seperately?
Right now, my bank one is positive, and my bank two is negative. (about an 8% difference on average between the two).
Does the engine use an average of these numbers to decide what to do (add or reduce fuel), or is each bank truly independent?
On average, my LTFTs are slightly negative, but I don't want the engine dumping fuel on one side, and leaning on the other when I punch the gas.
Is there a way to tune each bank seperately?
04-11-2006, 12:58 PM
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Quote, "Does the engine use an average of these numbers to decide what to do (add or reduce fuel), or is each bank truly independent?"
Each bank is independent, you can usually see this while monitoring each banks injector pulse widths, the bank with the highest LT trim is reflected in that bank's inj PW being longer.
Each bank is independent, you can usually see this while monitoring each banks injector pulse widths, the bank with the highest LT trim is reflected in that bank's inj PW being longer.