Need some MAF part numbers please

[TDSAaron]

I just finished my S14 SR swap and it's running good except it's a little lean at WOT. The MAF that was installed on the clip and the one that's on the car right now is 22680 69F00 AFH50-18. Part throttle AFR's are a little lean and around 15.1:1. WOT stays at around 14.1:1 until about 7lbs and 4K RPM when it finally makes it's way down to a 12.1:1. The car does not make over 8lbs of boost and has the stock boost solenoid installed right now.

The other meter that was laying in the floor of the clip has a part number of 22680 52F00 AFH50-13. When I try it the car is pig rich at idle and won't even stay running. It was around a 10.0:1.

I have searched and been unable to find a cross reference for these stock meters. Can anyone help me out by verifying a known Stock S14 Blacktop SR MAF part #? Thanks in advance.

[khilgers]

taken off my S14 SR20DET kouki motor

22680 69F01 AFH50-18A

[TDSAaron]

Thanks, sounds like I might have the right one on there, but it seems kind of lean for stock setup. Thanks again. I think I'm just going to buy Haltech before I go up on boost.

[RedtopTech]

Those are perfectly suited ratios for a stock setup.at part throttle and or lower rpm leaner ratios can be utilized becausethe risk of detenation is much lower.

[TDSAaron]

Those are perfectly suited ratios for a stock setup.at part throttle and or lower rpm leaner ratios can be utilized becausethe risk of detenation is much lower.

Yes, I know, but it's still lean at WOT not part throttle.

I am ditching the whole stock ECU setup anyway and going with a Haltech. I tune EFI systems everyday and I'm not new to fuel injection MAF or SD. Just semi new to the Nissan and the SR's. That's why I posted about part numbers as I don't have a good reference for them. Only been tuning them for about 2 years now.

Thanks for your input.

[shmiddy]

anyone know the s13 maf part number?

[SHIFT_*grind*]

52F00 is an S13 SR20DET MAF.