Thanks, I thought I'd heard something about a homemade code reader. For anyone else reading this I found the diagram
here and
here.
If the ECU is ignoring the MAFS how can the MAFS be causing a problem?
Interesting that the surge and stumble developed only weeks apart, I hope it's the MAFS and O2 sensor, that'd be an easy fix.
I'd already bought intake gaskets anticipating a leak or at least some teardown for inspection.
