Thread: B13 fuel woes..:confused:

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2012-12-22 15:52:01

#11

SUNNYGTR93 Online/offline status of SUNNYGTR93 is unknown

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Originally Posted by billc

Yea - if we can trust the AFRs on your dyno chart, you are running 30% too much fuel above the mid range at WOT. This tells me that your engine management system is not working properly or your tune is off. Compared to this tune, you would be better off with a stock ECU.

yea im running a stock ecu with a super afc 2 on it. so are you saying my stock ecu could be bad?

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2012-12-22 21:19:20

#12

sss4me

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Originally Posted by SUNNYGTR93

Originally Posted by billc
Yea - if we can trust the AFRs on your dyno chart, you are running 30% too much fuel above the mid range at WOT. This tells me that your engine management system is not working properly or your tune is off. Compared to this tune, you would be better off with a stock ECU.

yea im running a stock ecu with a super afc 2 on it. so are you saying my stock ecu could be bad?

no,what he is saying is that this apexi is not tuned at all,and those reading's are pretty much stock ecu type air/fuel ratio's.actually there much worse than stock,you need some dyno time,about 3 hours worth (lol).

looking at the bright side,i got 30% more power and 20% more torque getting my afr's from 12ish to 13ish with the tune.think of how much you'll get (either that or bolt on a turbo now,lol)

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2012-12-26 16:31:13

#13

PEDRONX2k

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So how did the coolant temp sensor go....any luck? What,part number was it?

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2012-12-26 23:48:08

#14

billc

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Originally Posted by sss4me

Originally Posted by SUNNYGTR93
Originally Posted by billc
Yea - if we can trust the AFRs on your dyno chart, you are running 30% too much fuel above the mid range at WOT. This tells me that your engine management system is not working properly or your tune is off. Compared to this tune, you would be better off with a stock ECU.

yea im running a stock ecu with a super afc 2 on it. so are you saying my stock ecu could be bad?

no,what he is saying is that this apexi is not tuned at all,and those reading's are pretty much stock ecu type air/fuel ratio's.actually there much worse than stock,you need some dyno time,about 3 hours worth (lol).

looking at the bright side,i got 30% more power and 20% more torque getting my afr's from 12ish to 13ish with the tune.think of how much you'll get (either that or bolt on a turbo now,lol)

That's right. I'm saying that if you just run your stock ECU, your AFRs will be closer to what they should be then you are now getting. You need some tuning time to dial in your AFRs.

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2012-12-27 02:20:46

#15

Prodrifter Online/offline status of Prodrifter is unknown

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I agree with @billc because you don't have any substantial power adders. At one point I had the same mods you have plus lightweight pulleys and flywheel; and it ran amazing on stock ECU.

Last edited by Prodrifter on 2012-12-27 at 02-21-48.

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2013-02-14 23:15:02

#16

SUNNYGTR93 Online/offline status of SUNNYGTR93 is unknown

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Re: B13 fuel woes..:confused:

Update guys the problem was my 300zx tt fuel pump that i have in the car... Solved by Mikoo:thumbup:

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