Materials to Maintain Your ZHP IIIII Hand Protection IIIII Tools to Maintain Your ZHP
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  1. #1
    Join Date
    Sep 2014
    Location
    Queens, NY
    Posts
    12

    Car stalls every now & then with power loss once at quarter tank.

    Hey everyone. I have an 04 330Ci with 105k miles. Automatic.
    Car has stalled on me a couple times every now & then when driving at a low speed while i accelerating or decelerating or mid-turn. (Around 35mph)
    It has stalled on me before moving from a dead stop once & it has also stalled on me before moving from a dead stop while turning the steering wheel. Never stalled on me at high speeds before. (Knocks on wood) The other day i was driving down a busy main road & i had about a quarter tank of gas in the car (Moving at about 35mph) when suddenly the car started losing power. I felt the car jerk a couple times so i looked down at the dash and noticed the RPMS were dropping and and sort of jumping around. A friend of mine sitting passenger told me to pull over and add gas. So i pulled over and filled up & no RPM dropping/jumping/power loss after i filled up. First and last time that happened maybe because I haven't let my car go below a quarter tank since that power loss happened. But my car stalled on me the same day after that happened. Can't really predict when it's going to stall, it just happens. I also felt it almost stall on me yesterday when i left the parking lot at my job. Started the car, threw it in Drive, let go of the brake and turned the steering wheel and as soon as i gave it a little gas it felt like a little jerk & seemed like if i didn't give it gas right then & there it would have stalled.

    SES light is on. I was told my car is running lean not too long ago. Haven't gotten the exact codes yet & haven't re-scanned in a couple weeks to see if anything new popped up.
    Oh yeah & sometimes when I'm letting my car roll at a low speed after releasing off the gas pedal (Like 20mph) the car will kind've jerk like i downshifted or as if i tapped the brake real quick. Not sure what that is..

    Anyone have any ideas as to what it could be thats causing these problems? Is it my car running lean thats causing all this or is there more to it?

    One of my co workers told me it's the camshaft position sensors that caused my stalling and that power loss that one time. He said if i replace those two sensors my stalling and power loss i experienced that one time on the main road should be fixed.

    I've got a long list of things i've replaced within the last 7,000 miles. I've only had the car for about 16,000miles.

    i've replaced..

    Fuel Pump
    O2 Sensors
    Oil Level Sensor
    Oil Filter Housing Gasket
    Vanos Feed Line
    Thermostat
    Expansion Tank
    Fan Clutch
    Water Pump
    Idler Pulley
    Pulley
    Belt Tensioner
    Fan Belts
    Radiator
    Upper & Lower Radiotor Hoses
    Temperature Sensor
    Engine Mounts

    Oh yeah & my power steering is also giving in & out. Power steering doesn't work for the most part. When i turn the steering wheel the RPM seems to drop about a hair line or two.
    Sometimes i feel like i bought a piece of sh*t car
    Any help please? Thanks in advance.

  2. #2
    Join Date
    Jan 2013
    Location
    Central California
    Posts
    687
    Have you pulled codes yet? If so post them.

    My first guess, crank position sensor, but it could be any number of things. Codes would help diagnose.

  3. #3
    Join Date
    Jan 1970
    Location
    Southern California
    Posts
    18,064
    You already replaced many things I would have suggested, so maybe what Dave said. And, I know it's a long shot, but how old is your battery? These cars do incredibly weird things when they are not getting enough juice. You'd be amazed, stuff that wouldn't seem to be related or even make sense.
    Randeaux/Rando/John/jr - '06 Cic ZHP; Southern California
    "ZHP or not, I still like you"


    ZHP Performance Package, Cold Weather Package, Leather, Jet Black/Black/BlackCube, NAV, Anthracite Black "my individual" interior trim
    ESS Stage 1 Twin Screw Supercharger, Sprint Booster, BMW Perf Intake, Magnaflow Exhaust, Dinan TB & STEP S/W, UCC Sway Bars, Apex EC-7 18x8.5 ET38
    Suspension: AST 44100 dampers, Bimmerworld front adjustable end links, Swift springs (8K front, 10K rear), Vorshlag camber plates
    Dynavin D99+, Hardwire V1 (w/V1 Connection), BSW Stage 1 Speakers, Kicker Amp/Subwoofer
    BMW Performance Strut Brace, Orion V2 Angel Eyes, No-holes License Plate, SMG Paddle Shift Mod, Besian VANOS, Gold DISA, Fan Delete, M3 Side Mirrors
    Note: Actual car no longer resembles signature picture

  4. #4
    Join Date
    Sep 2014
    Location
    Queens, NY
    Posts
    12
    Quote Originally Posted by johnrando View Post
    You already replaced many things I would have suggested, so maybe what Dave said. And, I know it's a long shot, but how old is your battery? These cars do incredibly weird things when they are not getting enough juice. You'd be amazed, stuff that wouldn't seem to be related or even make sense.
    i honesty have no idea how old the battery is but i haven't replaced it myself since i've gotten the car. i purchased the car at 89k miles. now i have almost 106k miles. I should be able to go to auto zone and get these codes read for free right? I have no idea how to read these codes myself or use that tool that they use to read them honestly. I JUST changed a flat tire for the first time in my life last month so I'm kind've dumb founded when it comes to things with my car. If it wasn't for these forums i wouldn't know half the stuff that i know. (I still don't know much)

  5. #5
    Join Date
    Nov 2012
    Location
    22841
    Posts
    9,921
    I would go to an auto parts store and have them scan your car for the codes. Report back then.

    His - 2004 Imola Red / Alcantara 330i | 6MT | ZHP |

    Her's - 2005 Black Sapphire Metallic / Black Leather 330i | 6MT | ZHP |

  6. #6
    Join Date
    Jan 1970
    Location
    Southern California
    Posts
    18,064
    And have them check your battery.
    Randeaux/Rando/John/jr - '06 Cic ZHP; Southern California
    "ZHP or not, I still like you"


    ZHP Performance Package, Cold Weather Package, Leather, Jet Black/Black/BlackCube, NAV, Anthracite Black "my individual" interior trim
    ESS Stage 1 Twin Screw Supercharger, Sprint Booster, BMW Perf Intake, Magnaflow Exhaust, Dinan TB & STEP S/W, UCC Sway Bars, Apex EC-7 18x8.5 ET38
    Suspension: AST 44100 dampers, Bimmerworld front adjustable end links, Swift springs (8K front, 10K rear), Vorshlag camber plates
    Dynavin D99+, Hardwire V1 (w/V1 Connection), BSW Stage 1 Speakers, Kicker Amp/Subwoofer
    BMW Performance Strut Brace, Orion V2 Angel Eyes, No-holes License Plate, SMG Paddle Shift Mod, Besian VANOS, Gold DISA, Fan Delete, M3 Side Mirrors
    Note: Actual car no longer resembles signature picture

  7. #7
    Join Date
    Sep 2014
    Location
    Queens, NY
    Posts
    12
    The codes read
    P0171
    P0174

  8. #8
    Join Date
    Jan 1970
    Location
    Liberty Township, OH
    Posts
    37,935
    Intake leak.

    "No flamesuit required"
    Call Me Dane l 2/2004 330i ZHP l 18x8 ET45 BBS CK's wrapped with Michelin Pilot Sport AS3+ @ 245-40-18 l KW V1 Coilovers in front l KW V1 springs w/ Bilstein B8 dampeners in rear l BMW Performance Rotors l UUC StrutBarbarian l Racing Dynamics Rear Strut Bar l Jim Conforti Shark Injector l Light Birch Interior Trim l Bimmian Celly Mount l M3 Trunk Mat l l e90 Performance E-Brake & Shift Knob l M3 Tri-Stitched Boots l AL Headlight Retrofit with ZKW Lenses l CobyWheel Wrap w/M3 Stitching l LCM sw 4.5 triple blink and rear fogs l Maple Interior Trim

  9. #9
    Join Date
    Nov 2012
    Location
    22841
    Posts
    9,921
    Both of those codes are for system too lean. So you got an intake leak somewhere.

    First guess is upper and lower intake boots.

    His - 2004 Imola Red / Alcantara 330i | 6MT | ZHP |

    Her's - 2005 Black Sapphire Metallic / Black Leather 330i | 6MT | ZHP |

  10. #10
    Join Date
    Jan 1970
    Location
    Liberty Township, OH
    Posts
    37,935
    I'm gonna guess right here:



    "No flamesuit required"
    Call Me Dane l 2/2004 330i ZHP l 18x8 ET45 BBS CK's wrapped with Michelin Pilot Sport AS3+ @ 245-40-18 l KW V1 Coilovers in front l KW V1 springs w/ Bilstein B8 dampeners in rear l BMW Performance Rotors l UUC StrutBarbarian l Racing Dynamics Rear Strut Bar l Jim Conforti Shark Injector l Light Birch Interior Trim l Bimmian Celly Mount l M3 Trunk Mat l l e90 Performance E-Brake & Shift Knob l M3 Tri-Stitched Boots l AL Headlight Retrofit with ZKW Lenses l CobyWheel Wrap w/M3 Stitching l LCM sw 4.5 triple blink and rear fogs l Maple Interior Trim

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