'02 325xi Touring MAF issue

[BimmermanJp]

Hey everyone - I've been reading my live data on my Wagon and i notice my MAF readings at full throttle seem off... the G/s seem correct around 145 g/s, but the calculated engine load at MAX redline is 58%, when normal i believe is 85%+

I'm wondering what some potential causes are cause i do feel like the car has lost a little power
I've replaced a few things: Disa valve, spark plugs, filters etc..

[328 Power 04]

Not sure how you are coming up with those numbers, but you can use testo to get realtime load and MAF through the BMW diag protocols.


https://www.bimmerforums.com/forum/s...ime-graph-view

BMW reports load in mg/str and your car should reach around 500+- mg/str.

[BimmermanJp]

Bluetooth OBD Piston app lolz

[BimmermanJp]

it reports 100% when i use it on my e38

[MIKYZZ4]

Was a diagnostic scan performed? If so, codes displayed ?

Based on post#1, I suspect cat restriction.
Perform an exhaust backpressure test.
Post back with #'s displayed.

[BimmermanJp]

I havnt hooked up my AutoLogic to it for a full scan, but will do so.
ill do that test as well.