alexk Posted October 27, 2013 Report Posted October 27, 2013 Am trying to get to bottom of a problem that's been getting progressively worse with my mk1 galaxy tdi. To start with it was just sluggish up hills but now is all the time. Even getting speed to pull out of junction can be dodgy. Am thinking of replacing the MAF and wonder does anyone know whether a faulty one would cause permanent power loss. No readings from vagcom. Is there a way to test the MAF? Thanks for any thoughts Quote
gregers Posted October 27, 2013 Report Posted October 27, 2013 do a search on here for maf,loadsa info on it. Quote
alexk Posted October 27, 2013 Author Report Posted October 27, 2013 Tried to do a search for maf but the search was denied because the word was less than 4 characters long... Quote
gregers Posted October 27, 2013 Report Posted October 27, 2013 take a look in our faqs,no 29 and 30. Quote
alexk Posted October 27, 2013 Author Report Posted October 27, 2013 Unplugged the MAF and got a good improvement. Was able to get to 3000 revs in each gear! So I guess that's a big guilty sign for the MAF. Btw I have to make a 300 mile round trip tomorrow - will driving with the MAF disconnected do any harm? (Obviously will get MAF replaced ASAP after) Quote
seatkid Posted October 27, 2013 Report Posted October 27, 2013 - will driving with the MAF disconnected do any harm? No harm whatsoever. The ECU will fall back on internally mapped ultra conservative airflow rates and thats why the power is limited when running without a MAF sensor. Quote
Scorpiorefugee Posted October 28, 2013 Report Posted October 28, 2013 (edited) Some years ago I swapped the MAFs between my MKI and MKII to prove a fault. The faulty MAF left the MKI quite drivable but on the MKII it produced the same effect as reported here. Other than that I believe they are interchangeable. I got the replacement from Ebay for about Edited October 28, 2013 by Scorpiorefugee Quote
alexk Posted November 9, 2013 Author Report Posted November 9, 2013 Got the MAF replaced and the problem is fixed!! Part was Quote
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