MAF junk? Please help!

[mrbledsoe08]

I have a 02 WRX and been having major lean issues with it. When I drive it, its only like i got 1/4 throttle. After 3500 rpms and starts boosting it jumps really lean. It will also start detonating on higher rpms. I have changed the fuel pump, fuel filter, O2 sensor, and plugs. I also put the stock airbox and BOV back on to see if that would help. No help.

Well i logged what i could with my scanner(i know it isn't much). Here are the stats:

TPS% - 100
Eng Speed - 5009
Calc load - 67.9
Maf flow - 124.85 g/s
MAP kpa - 162
Iat deg. - 73
IGN advance - 9.0

This was the highest of my run due to traffic..

Can anyone say for certain that is the problem.. I am pretty certain that is the problem. Would just like to know for sure

[EJ257]

Have you cleaned the MAF sensor?

Any leaks?

[mrbledsoe08]

Yes, i have cleaned it.. twice actually. Just to make sure i didn't leave anything behind.

And i searched everything that i could see, and i haven't found any leaks..

[EJ257]

And i searched everything that i could see, and i haven't found any leaks..

Visual inspection isn't sufficient. Have you tested for leaks?

[mrbledsoe08]

No.. Not actually. I just read about the propane testing. If that would be sufficient, I will try it tomorrow. Gonna give anything a shot.

[mrbledsoe08]

Well, after further investigation.. i noticed that my turbo inlet hose has about a 1 inch tear in it. So i guess i am going to try a Perrin intake tube. I will install it and reset the ecu and see what happens. I will post back shortly

[Sasquatch]

PM sent - I may be of some help turbo inlet hose-wise.