Need to bring this one back for further input. The knock is still there even after switching from an EVO MAF to a 2G. Anyone have any helpful hints where to start looking?Airflow readings jump all over the place. Could this be connected? No knock at WOT this time, only part throttle. When it...

RESOLVED: For anyone wondering I was able to rectify the crazy MAF reading (hertz readings jumping all over the place under load) by cleaning the MAF with CRC MAF Cleaner. I know there is a lot of debate on the subject of using MAF Cleaner, but it worked great in my situation. EVO 8 MAF.

EVO MAFS are crazy expensive right now. If this is indeed a dead MAF I would need to contemplate going to SD or might just get a 2G MAF for the time being.Anyone else out there have any advice? Looking through the log at 519.352 seconds the MAFRaw Hz drops from 801.8 to 569.5 with 100% TPS...

You are correct. I need to pull the vr4 out of the garage and get a proper picture. You have given me the motivation:)

I've read throughout the forums that the only way to truly test the Karman Vortex style MAFs is with an oscilloscope, looking for spikes, dropouts, and other noise. With the log I posted (which is like an oscilloscope) would this qualify as a "dropout" or other type of noise?Want to be as...

That was what my thinking was too. The airflow numbers go down with increase in RPM, which is wonky. I'm not really familiar with tuning and where these numbers come from. I've tried tuning the idle as well, but the engine doesn't respond appropriately. I change one thing and try again and have...

Hey Everyone,I've been into DSMs on and off for about 15 years and have used this forum extensively by reading. I currently own a GVR4 that has had issue since the day I bought it a few years back. As you can see in my profile, the previous owner(s) installed most of the parts, leaving me to...

This is the Build Thread for 1992 Galant VR-4 #594. Reply below.