[Borsig]

So heres the deal -

Im coming home, driving normal, and I notice a loss of power under load.

I decide to test my theory with second gear pulls. Only thing I have in the car is a boost gauge. 2nd gear she wont generate more than 2-3 pounds of boost and is very sluggish.

At one point the boost kicked in around 4500 ish rpms and threw me back in the seat, then seemed to conker out.. It almost sounded as if it was backfiring as well a bit...

So - did my HPFP just take a shit?

Car has a whopping 484 miles on it.

ALSO - NO CEL

[Qmax03]

i believe so... and the story continues...

[NaTuReB0Y]

BMW needs to hire a quality check engineer before shipping these cars out.....

[Borsig]

sound like hpfp to you guys then?

[Borsig]

by the way - no check engine light

[shaddai]

Originally Posted by Borsig

sound like hpfp to you guys then?

I would agree. Ouch.

[Borsig]

whats the record for a failure? lol Im at 484 miles

[Mike@N54Tuning.com]

Originally Posted by Borsig

whats the record for a failure? lol Im at 484 miles

Drive from the assembly line to the parking lot LOL

Mike

[Borsig]

Well Im going to go drive it again... see what happens..... BRB

[Kroy]

Originally Posted by Mike@N54Tuning.com

Drive from the assembly line to the parking lot LOL

Mike

lol I hear horror stories of people driving it off the lot and fail before reaching home.

[Mote]

Sounds like it. Usually long cranks are indicative of a bad HPFP.

[Borsig]

ok - back from the 6 mile loop.. NO problems... Couldnt replicate it.....

Heres a noob Q -

The electric fan was on when I was having this issue - but no temp warning. When this happens does it cut boost? I wouldnt think so - plus there was the whole felt like it was backfiring thing....

So what the hell now? pull the boost gauge out and take it to the dealer in the AM? For them to tell me they found nothing?

I wish I had a damn BT

[shaddai]

Originally Posted by Kroy

lol I hear horror stories of people driving it off the lot and fail before reaching home.

I saw one here on a test drive.

[jimk]

Could be heat soak

[Borsig]

heat soak causing studdering and no boost? no

[Borsig]

well I just tok it on my fav on ramp loop and back to the house... Drove the wheels off of it...

No issues, ran fine.

wtf?

[Alan l.]

Could it be anything related to your boost gauge install?

Time to order a BT scanner. After reading on these forums the past few weeks this should be on everyone's list of must haves.

Alan

[Borsig]

Only thing it could be is a vaccuum leak, and if it was a vaccuum leak, it would idle like shit.

[Hyper psi-atic]

What was your outside temperature and humidity? Not sure about Charlotte, but i notice a drastic decrease in boost consistency and power when the DC area temps reach upwards of 90+ and humidity is around 70-80%. I dont even bother pushing it.

Just a suggestion.

[Borsig]

today was the hottest day weve had this year by far..

As I said the electric fan was running... I couldnt get it to come back on on my follow up drives.

I do need a BT tool.... wish I could find a used one

[1N54E92]

Originally Posted by Hyper psi-atic

What was your outside temperature and humidity? Not sure about Charlotte, but i notice a drastic decrease in boost consistency and power when the DC area temps reach upwards of 90+ and humidity is around 70-80%. I dont even bother pushing it.

Just a suggestion.

hmmmmmm...interesting theory.

[Borsig]

I cant get it to replicate it - take it in or not? I really dont want to take out my boost gauge