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According to you, the MAF just does the EGR, speed, MAP & load also affect EGR according to a recent post of yours. With the MAF unplugged, explain why running is affected? Can't be the EGR if it is blocked. there are 3 reporting the same thing with MAF problems. Not my fault you don't understand electronics.
Bosch seem to think it affects fuelling and they designed the ECU.
You keep adjusting your story to try to cover the fact that things change if the MAF is OC, like the EDC getting confused.
Keith for Christ sake give it up, you don't know what you are talking about. How does the non MAF diesel engine work without the MAF to control fuelling? The MAF DOES NOT CONTROL fuelling. It tells the ECU how much exhaust gas is being ingested by the engine. EGR works in 20 second cycles the air being ingested by the engine is measured, when EGR is activated the reduction in air flow through the MAF is measured the ECU will then adjust modulation of the EGR solenoid to regulate the exhaust gas/air mixture to reduce NOx production. It has sod all to do with fuelling.