Builds 1FZ-FE TRD S/C Rebuild (3 Viewers)

[landtank]

The total trim is not that far out at @ 14.0.

You need to drive the truck for the ecu to apply the short term value of -20.3 to the long term value.

I’m at sea level and typically see a total trim of +7-8

 

[thetoyotaman]

It actually does this LTFT at no load driving 55.

 

[landtank]

What I’ve seen from monitoring the fuel trims is that along the (RPM, TPS ,LOAD) range there are points were the LTFT will be hard set and different between the points.

I have no idea how they are identified or values determined, just that they are there.

How are the idling Fuel trims?

 

[thetoyotaman]

Since rebuild, the Ishino brand front crank seal never sealed. Replacing with an OEM one. Also doing the oil pump o-ring while I’m in there as well as the A/C Clutch bearing.

What’s the consensus on dry versus oil the o-ring prior to installation?

I used the allen head bolts last time on the oil pump cover and thought they were going to strip to remove so not sure what to replace them with this time. They were black oxide so don’t know if that caused the issue with the aluminum.