User Tag List

Page 4 of 6 FirstFirst ... 23456 LastLast
Results 61 to 80 of 105

Thread: MPS6 engine hesitation

  1. #61
    Join Date
    Jun 2009
    Location
    Newcastle
    Posts
    1,413

    Default

    Is that log on here @rayd?

  2. #62

    Default

    Quote Originally Posted by MPS2NV View Post
    Is that log on here @rayd?
    Yep it's in the zip file he uploaded

  3. #63
    Join Date
    Jun 2009
    Location
    Newcastle
    Posts
    1,413

    Default

    Might wait for the short version lol


  4. Default

    Uv9vTBH.jpg

    Here's gear 3 WOT

  5. #66

    Default

    Quote Originally Posted by pural001 View Post
    Uv9vTBH.jpg

    Here's gear 3 WOT
    Ye man lines 18-34 , look at your fuel pressure... That's not right @ WOT at all!

  6. #67
    Join Date
    Jun 2009
    Location
    Newcastle
    Posts
    1,413

    Default

    Your fuel pressure seems odd, goes down to fark all then recovers. Something is wrong. Where is the knock retard data?

  7. Default

    Quote Originally Posted by rayd View Post
    Ye man lines 18-34 , look at your fuel pressure... That's not right @ WOT at all!
    yeah =\
    Do you think that HPFP is the most likely culprit?

    Some other guys in another forum suggest I start with new sparkplugs since mine have done about 45,000km.
    I am looking at purchasing some Denso ITV22's. So I guess I will do one more test after installation and see where that leads me.

    Can faulty spark plugs cause that kind of drop in fuel pressure?

  8. Default

    Quote Originally Posted by MPS2NV View Post
    Your fuel pressure seems odd, goes down to fark all then recovers. Something is wrong. Where is the knock retard data?
    I took it out (To save screen real estate) because it didn't show a reading at all. It was 'zero' across the whole log in every single log that was done.

    Edit:
    Knock retard was 'Zero' in data logs for gears 2-3-4
    Knock retard showed figures of 0.35 in one or two lines in data logs for gears 5 and 6
    Last edited by pural001; 04-06-2013 at 09:39 PM.

  9. #70
    Join Date
    Apr 2010
    Location
    Canberra
    Posts
    9,459

    Default

    fark, fuel pump is crapping itself, no wonder you're having problems... should never go under 1600psi @ WOT, and even at idle, should still be in 400-450 range
    the pressure dies, AFR's go to hell, and throttle plate goes all funky, this is first step to causing a piston to appear outside your block, get new internals asap
    options here:
    http://www.ozmpsclub.com/forum/engin...-upgrades.html

    suggest contacting @EdgeAutosport.com asap to get some, if they're out, hit up rallysportdirect, they get a shipment in this wednesday
    **AUTOTECH INTERNALS IN STOCK** - Page 2 - Mazdaspeed Forums
    Last edited by SarcasticOne; 04-06-2013 at 09:39 PM.
    Newbie FAQ My Build Thread
    From stock, to GT3071, to substantially less modded, many lessons learned!
    3" HTP | 100 Cel DP | Autotech HPFP | AP V3 - Self Tuned on E20 | JBR RSB | CPE S2 REM | JBR Shifter Bushings

  10. #71
    Join Date
    Jun 2009
    Location
    Newcastle
    Posts
    1,413

    Default

    Ok, just trying to pic up on a zoom zoom boom theory, it's worth monitoring at all times.

  11. #72
    Join Date
    Jun 2009
    Location
    Newcastle
    Posts
    1,413

    Default

    Sounds zzb to me.

  12. #73
    Join Date
    Apr 2010
    Location
    Canberra
    Posts
    9,459

    Default

    my advice, get those fuel pump internals shipped asap, drive the car as little as possible, if you HAVE to drive it, baby it as much as possible...
    get them installed, and then check fuel pressures again...

  13. Default

    Thanks sarcasticone, do you think getting new spark plugs will do anything?

  14. #75

    Default

    You are incredibly lucky...More lucky than you will ever know.

    Personally I would not drive that car at all until you get your fuel pump upgraded.

    That is a recipe for catastrophe in your log.

    Changing your plugs wont hurt and get the NGK plugs over the Denso's.

  15. Default

    Quote Originally Posted by LittleredMPS View Post
    Personally I would not drive that car at all until you get your fuel pump upgraded.
    Okay, I can make do without a car for a while.

    Quote Originally Posted by LittleredMPS View Post
    Changing your plugs wont hurt and get the NGK plugs over the Denso's.
    What's better about the NGK's?

  16. #77
    Join Date
    Apr 2010
    Location
    Canberra
    Posts
    9,459

    Default

    Quote Originally Posted by LittleredMPS View Post
    You are incredibly lucky...More lucky than you will ever know.

    Personally I would not drive that car at all until you get your fuel pump upgraded.

    That is a recipe for catastrophe in your log.

    Changing your plugs wont hurt and get the NGK plugs over the Denso's.
    this ^
    spark plugs will cost an extra $40 on top of the $400 for autotech internals (or whatever else you get)
    may as well grab them
    but your #1 priority is getting the HPFP fixed asap...

    - - - Updated - - -

    if you havent already, go buy a lotto ticket
    Newbie FAQ My Build Thread
    From stock, to GT3071, to substantially less modded, many lessons learned!
    3" HTP | 100 Cel DP | Autotech HPFP | AP V3 - Self Tuned on E20 | JBR RSB | CPE S2 REM | JBR Shifter Bushings

  17. #78

    Default

    The Denso's have had intermittent premature failure issues. The NGK's seem to be more reliable allround.

  18. #79

    Default

    Quote Originally Posted by LittleredMPS View Post
    The Denso's have had intermittent premature failure issues. The NGK's seem to be more reliable allround.
    Lol my NGKs lasted all of 2 months.
    Going back to densos next week , they lasted almost 40,000kms

  19. Default

    Quote Originally Posted by SarcasticOne View Post
    this ^
    spark plugs will cost an extra $40 on top of the $400 for autotech internals (or whatever else you get)
    may as well grab them
    but your #1 priority is getting the HPFP fixed asap...

    - - - Updated - - -

    if you havent already, go buy a lotto ticket
    lol I'm pretty sure I already hit the jackpot with my car not exploding on me.

    Are places like mazda able to fit the upgraded internals to the hpfp or do i have to take it somewhere more specialized?

Page 4 of 6 FirstFirst ... 23456 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •