LLY: I would appreciate a little assistance

[messejme]

I am experiencing two problems.
1: while light throttle cruising at around 2500 rpm I experience a defuel and I get a large amount of blueish greyish smoke from the exhaust. After 1 or 2 seconds it will return to normal running but the problem will keep recurring until more or less throttle is applied or an upshift changes the rpms. No codes.
2: I am getting a complete defuel with no smoke at around 90 mph on a WOT run. With a p0103 Maf code. I believe the Maf is seeing 5 volts for too long a time period.
Any pointers?

 

[messejme]

Any ideas?

 

[SickLL7Crenshaw]

I experienced the same problems at around 90mph WOT going down the track. Same code also. I ended up turning the code off via efi live and haven't had a problem since. It would almost act like I popped my fprv. Then after a second it would take off again.

 

[PACougar]

Sounds to me like both problems are being caused by a bad Maf.