I tried all the fixes on maf including replacement with no results. What next?
Tried: Disconected runs better, cleaned sensor and connections, tried the grease, had VW read the codes(127508 air flow too high} replaced the maf. Still limp mode with uphill acceleration. I've tried the test with the egr vlave. Ignition on doesn't move the valve. This is the electric egr valve. No significant carbon buildup on egr valve or intake. 150,000 miles. Egr cooler has been replaced. A reading from Autozone indicated insufficient egr flow. Vw found no egr codes. What next
Tried: Disconected runs better, cleaned sensor and connections, tried the grease, had VW read the codes(127508 air flow too high} replaced the maf. Still limp mode with uphill acceleration. I've tried the test with the egr vlave. Ignition on doesn't move the valve. This is the electric egr valve. No significant carbon buildup on egr valve or intake. 150,000 miles. Egr cooler has been replaced. A reading from Autozone indicated insufficient egr flow. Vw found no egr codes. What next