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  1. #1
    Active Member Two Rings
    Join Date
    Sep 22 2016
    AZ Member #
    381503
    My Garage
    1984 f-250 inline 6
    Location
    Washington

    Question Vibration on med-heavy exceleration

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    I started to notice that when i accelerate anywhere from medium to full throttle i have a vibration feeling in the car and steering wheel. I also have started to get this code (p0087) Rail pressure low. often when i do excel rather spiritedly. It turns off after a day or so. Or i can reset it and it stays off, well until i repeat the prior. Also i noticed that after 5k RPM the boost drops to 5psi and then back up to 10-12 and back again while accelerating. Also when in D the car at stop has a Vibration but not when in P or N. NOTE. I have changed my hpfp about 20k ago due to the follower failing. Now i replace the follower every 25k with only the black center being shinny. Fuel filter about 40k ago. Really no problem when normal driving.


    Maybe the LPFP?

    Thanks guys.

  2. #2
    Veteran Member Four Rings vce1232000's Avatar
    Join Date
    Jun 17 2013
    AZ Member #
    117368
    My Garage
    83 MK1 GTI Callaway Turbo stg II
    Location
    jersey city nj
    Items for Sale

    Sounds like motor mounts need to be for the engine vibration. Not related to the P0087
    APR KO4, APR HPFP,RS4 LPFP Cntr,145 bar PRV, APR TP, TT DP, GFB DV+, AWE FMIC, BFI CC, AWE Exhaust, RS4 Exh tips, ST CO, 034 RSB,034 St Dnsty Mtr Mts, New Sth West Bst guage, B7 RS4 8 pot Calipers.Stop Tech slotted rotors.Goodridge SS brake lines frt & rr. Hawk HPS frt & rr. RS4 PS rack, RS4 Servotronic Relay,RS4 rims. S4 mirror caps,RS4 Mesh Style Grill,LED tail lites
    S4 Recaro Front & Rear seats. Led Interior Kit,United LED's fog lites
    2007 A4 Avant 2.0T Tiptronic 6spd

  3. #3
    Active Member Two Rings
    Join Date
    Sep 22 2016
    AZ Member #
    381503
    My Garage
    1984 f-250 inline 6
    Location
    Washington

    Could be, i did replace them about 2 months ago. I will give that a go.

  4. #4
    Senior Member Four Rings Okedokey's Avatar
    Join Date
    Oct 24 2015
    AZ Member #
    363505
    Location
    Perth, WA

    Nope, that sounds like fuel cutouts to me. Log the LPFP utlisation at idle.
    A4 B7 2.0T | HPFP upgrade + FMIC | BSR Stage II + exhaust + HFC | RS4 fuel contr., PRV + S3 inj. + DW300c | GFB DV+| 034 RSB + all arms and mounts | S4 brakes | B12 Bilstein suspension + H&R springs | RNS-E + Polk Audio PA D5000.5 - 4 x DB6502 + db840DVC sub + Pioneer 10" sub | LEDs throughout | 19" Audi 2015 RS4 rims

  5. #5
    Veteran Member Four Rings vce1232000's Avatar
    Join Date
    Jun 17 2013
    AZ Member #
    117368
    My Garage
    83 MK1 GTI Callaway Turbo stg II
    Location
    jersey city nj
    Items for Sale

    the bolts to make sure there tight. also @ transmission mount
    APR KO4, APR HPFP,RS4 LPFP Cntr,145 bar PRV, APR TP, TT DP, GFB DV+, AWE FMIC, BFI CC, AWE Exhaust, RS4 Exh tips, ST CO, 034 RSB,034 St Dnsty Mtr Mts, New Sth West Bst guage, B7 RS4 8 pot Calipers.Stop Tech slotted rotors.Goodridge SS brake lines frt & rr. Hawk HPS frt & rr. RS4 PS rack, RS4 Servotronic Relay,RS4 rims. S4 mirror caps,RS4 Mesh Style Grill,LED tail lites
    S4 Recaro Front & Rear seats. Led Interior Kit,United LED's fog lites
    2007 A4 Avant 2.0T Tiptronic 6spd

  6. #6
    Senior Member Three Rings
    Join Date
    Nov 07 2015
    AZ Member #
    364136
    My Garage
    2004 Jeep Wrangler Rubicon, 94 Z28
    Location
    Pennsylvania

    Log lpfp, check your fuel filter, if you are tuned make sure you have proper gap on your plugs and that you are running colder ones.

    Sent from my Pixel XL using Audizine mobile app
    2006 A4 6MT - JHM Stage 2 93 Oct flash | Cam Follower Conversion | JHM HFC | JHM Downpipe | B6 S4 Exhaust | JHM HPFP Internals | JHM Small Core FMIC | 034 RSB | Sway Bar Endlinks

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