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Car will not run with MAF plugged in.

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Old 11-23-2008, 01:13 PM
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Default Car will not run with MAF plugged in.

Massive misfires, struggles to stay running at idle then dies... lots of popping and carrying on.

Car died on the way to Ace and we managed to nurse it into the parking lot. Same symptoms as above. I unplugged maf when we got into the lot just for ****s and grins and never plugged it back in. We assumed coil packs and swapped 1 and 2 with spare AMU coils. It ran good after that actually.... although I went really easy the entire way. It made it home.

Get into the garage and put the VAG on it. It logged misfires on 3 and 4. Remember we swapped out 1 and 2. I thought it was odd it was running so well if 3 and 4 were the bad coils.

Then I remembered the maf was unplugged so we shut the car off, plugged the maf back in and started it back up.

Same thing as before... barely runs, misfires, popping, idle all over the place, stalling etc.

Obviously the maf is bad... yes?

Are these symptoms normal for a dead maf though? John's had two die and his did nothing of the sort.

Im going to get 4 coilpacks and a new maf tomorrow... but is there anything else I should look at?
Old 11-23-2008, 01:20 PM
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Dong !! wrong answer, left thread for the good info below . (crawls back in dark hole)
Old 11-23-2008, 01:21 PM
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Default sounds like a complete failure on the MAF......>>

recommend in future to go with all new coilpacks instead of just failed ones...remember they are electric and can wear unevenly.....fwiw
Old 11-23-2008, 01:22 PM
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Default Sounds like Primer John is off his game....>

Kick him again....:-)
Old 11-23-2008, 01:23 PM
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Default why would unplugging the maf make bad coilpacks stop misfiring though?

I would thing that bad coilpacks would make the car run bad regardless of the maf.
Old 11-23-2008, 01:24 PM
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Fuel...
Old 11-23-2008, 01:24 PM
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hmmmm so do you think the maf is ok then?
Old 11-23-2008, 01:24 PM
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Default the misfire was probably the result of the bad MAF>>

and unrelated...
Old 11-23-2008, 01:26 PM
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Default Wait what?

Ok, will go swap #3 and #4 to #1 and #2 and see what happens.
Old 11-23-2008, 01:27 PM
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Default yes I know... but if the misfires were from bad coilpacks... then it should still misfire with the

maf unplugged yes (if the maf is good)?


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