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Aristo 2JZGTE running lean

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Old 04-08-13, 03:22 PM
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boostinlgt
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Default Aristo 2JZGTE running lean

I have a Aristo 2jzgte swapped 95 sc300 6spd.
(car was purchased with the swap complete)
- twin turbo (usdm turbos)
- TTC (true twin conversion)
- supra fuel pump
- Aristo ECU
- fuel cut defender
- MBC set to 16psi

Idle after car is warm i am seeing 13.5-14.5 AFR which seems to be normal, The problem is i am seeing upwards of 16.2 AFR getting into boost and driving not in boost. (afraid to go WOT)
I checked most of the vacuum lines everything seems to be intact. Fuel pressure at 30PSI

The only thing out of place was the K&N crankcase breather popped off and seems to need a cleaning.(could this cause a A/F issue?

Engine was just compression and leakdown tested a month ago and passed everything with flying colors.

If anyone has any ideas, suggestions or needs more info to help diagnose please help.
I plan to go single some time in the future and an AEM V.2 is on the list. Maybe i should do it sooner than later?
Old 04-08-13, 05:58 PM
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boostinlgt
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Upon further review I did a few pulls and the AFR was better on higher boost, 12 psi I was at 12.0AFR
Old 04-08-13, 08:46 PM
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blk&blu*j
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Get rid of the fuel pulsation damper located on the block under the intake between piston 4-5.
After that get an aftermarket FPR and run the static FP at aroun 38-42psi.
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