lean out problem with walbro255 help me?!?!
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This is just a guess, but you have a bigger volume to spray fuel into (F22 block), so maybe the the F20 ECU can't compensate for it. Replace the stock FPR with an AEM ajustable one and turn the fuel pressure up a notch or two.
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Originally Posted by fperra,Jan 3 2007, 05:54 PM
This is just a guess, but you have a bigger volume to spray fuel into (F22 block), so maybe the the F20 ECU can't compensate for it. Replace the stock FPR with an AEM ajustable one and turn the fuel pressure up a notch or two.
ı did that actually w\b&m fpr and it was ok afr was 12 before vtec and 13 after vtec .After J's intake and T1R 70RT headerback afr now down to 15
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