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Need Help! Changed Spark Plus now...

Old 10-15-2009, 12:40 AM
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Join Date: Oct 2009
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Well I changed the coil and the wires and cleaned the MAF the best I could. It still won't start. It's like its hesitating to get gas or air. It won't turn over.
Old 10-16-2009, 01:58 PM
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Join Date: Oct 2009
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I got my hands on a OBD II and got these codes:

P1141 Load Calculation Cross Check Range/Performance

P0300 Random/Multiple Cylinder Misfire

P0304 Cylinder 4 Misfire

P0305 Cylinder 5 Misfire

P1250 Fuel Level Too Low

My fuel is low but it should have enough to start it. I tried to clean off the MAF but it has the weirdest screws in it I have ever seen and I don't have the tool to take it completely off so I just wiped i down in the housing best I could. I put the old air filter in and took the K&N out. I changed the spark plugs to the best out there, NGK Iridium cost me $20 more than what I originally had. It's still not starting. Have a new coil and wires on it too. There was some oil on the electrode of spark plug # 4 but a mechanic I asked said it might have dripped into the cylinder when I first changed it because the threads on the old spark plugs had a good amount of oil on them when I pulled the out but none on the electrode. This is driving me nuts. The car ran fine two weeks ago I do preventive maintenance and it completely dies on me.
Old 10-16-2009, 02:17 PM
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Join Date: Sep 2009
Location: Massachusetts
Posts: 1,465

I think P1141 is probably either the MAF or MAP sensor. MAF sensor is used to calculate airflow and the MAP sensor senses engine load via pressure in the intake manifold.

I'd say fix the P1141 and your misfires will likely be fixed.

The way to clean a MAF is to spray the wires inside of it down with a safe solvent. I use actual MAF cleaner to do that. Make sure to never touch those wires with anything.

Last edited by dragonrage; 10-16-2009 at 03:14 PM.
Old 10-16-2009, 02:51 PM
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Join Date: Mar 2009
Location: Indiana
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You dont need to actually remove the MAF Sensor from the housing to clean it, though its better if you do. If you look at the inlet side of the housing, there is a hole for the air sample and looking at the rear, there is an exit hole. Spray the MAF cleaner into these holes while holding the housing at different angles. It should drip pretty good from both holes.

Not the actual Audi MAF, but you get the idea:


Last edited by Midniteoyl; 10-16-2009 at 02:54 PM.
Old 10-16-2009, 07:06 PM
Join Date: Sep 2009
Location: CHICAGO
Posts: 22

yeah check the maf. I had same problem and i replaced maf and spark plugs and my problem went away. But sounds like your maf just needs to be cleaned. if you bought plugs from napa i would return and go to audi for oem. Single prong.
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