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| Subject |
300 zx run always too lean, why? |
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| Posted by |
maniaq on May 20, 2019 at 12:11 PM |
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This message has been viewed 333 times. |
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| Message |
hi guys, i buy a jdm 300tt last years, when i buy the car , i had to tow at home beacause car wasn't running, i replace all injectors(3 had failed), since engine run smooth but not great power, i can also feel engine misfire like a fuel pump pressure problem, engine back fire a bit between 2500 and 4000 rpm, fuel pressure is always around 45 psi, i buy a consult cable to diagnose issue, my injector duty cycle never go more than 14% and my lh 02 sensor is at 100 most of the time rh 02 bounce up and down but is around 80, i cannot find why injector cycle is too low, when a adjsut a/f base at 125 with active test, car run way better. somebody have a idea? thanks you
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| Follow Ups |
- 300 zx run always too lean, why? - maniaq
12:11:59 05/20/19
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