stalling on decceleration

[Super Unique]

I have a 2008.5 speed3, stock except for Cobb intake with amsoil dry filter. Car ran fine for 19,000 miles using cobb intake and recently (4,000 miles ago) switched to amsoil dryflo filter. All without issues until today. Now, when coming off a cruise or highway run the engine will stumble and stall out @ idle coasting up to the stop. Wondering if this is likely a MAF sensor issue, or something else coming into play. Opinions?

Wires are not abraded, and sensor looks clean. Should I try to clean it? or put factory intake back on and return it to dealer for service.

 

[phillyb]

check to see if your intercooler is still tight on the boost tubes. i had a similar problem and my ic wasn't even attached on the cold side.

 

[hectik1]

Sounds like a vacuum leak....check all connections.

 

[phillyb]

Sounds like a vacuum leak....check all connections.

this

 

[Super Unique]

power and boost is still strong, and holds well. I am guessing it's either vacuum leak or maf related...

 

[Turninconcepts]

this

that...

 

[bova80]

check to make sure your pcv hose didn't come off the intake manifold.

 

[Super Unique]

stupid solution. Try reattaching the air filter that fell off, canting down @ a 45 degree angle from the cobb intake pipe, causing turbulence in the system and messing up the MAF readings. Cleaned MAF sensor anyways and reassembled. Runs fine now

 

[phillyb]

good