s555555555
Member
Yo! Newbie here. Wanted to say hi to everyone. Got a used E92 335 since abt 3 months back 
Cheers
S
Cheers
S
Greetings
- Thread starter s555555555
- Start date
Re: Greetings
Hi S555555555,
welcome onboard...
* Previous ride S5?
cheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeers
s555555555;1013887 said:Yo! Newbie here. Wanted to say hi to everyone. Got a used E92 335 since abt 3 months back
Cheers
S
Hi S555555555,
welcome onboard...
* Previous ride S5?
cheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeers
s555555555
Member
Re: Greetings
Thanks guys, yeah looks aside, I brought into workshop a few times already. Nothing major though. Just being fussy...
Thanks guys, yeah looks aside, I brought into workshop a few times already. Nothing major though. Just being fussy...
s555555555
Member
Re: Greetings
Ah..my nick..Haha nope...nothing to do with Audi or wrx just a variation of my "ah beng pager code" back in those days
ac323;1013888 said:
Ah..my nick..Haha nope...nothing to do with Audi or wrx
just a variation of my "ah beng pager code" back in those dayss555555555
Member
Re: Greetings
Hi Bros, would like to seek some advice.
I installed jb4 about 1.5 mths back. Nine out of ten times this happens since installation.
When driving hard, after 5-10 mins, the car jerks and looses power, RPM drops to about 1.5 so i let go of the gas. When i accelerate again gently, once past RPM abt 1.5 the jerking comes back. the more i step, the more violent the jerks. When this happens i just crawl to a safe spot, off engine and restart and all is back to normal. Quite scary. Now i am just driving on map zero which essentially means on stock ecu, jb "switched off".
car has:
-pml installed performance exhaust
-dual cone air filter
-using either map 1 or 5 on the jb (recommended by ws)
to make things more tricky, once on the jb map, it hijacks the ECU and so no warning lights come up. So when i took it to the ws, the computer diagnosis does not detect any faults and they say it seems to drive normal. Does anyone have any experience or advice to share? Could you point me to something so i can maybe do more research?
thank you!
S
Hi Bros, would like to seek some advice.
I installed jb4 about 1.5 mths back. Nine out of ten times this happens since installation.
When driving hard, after 5-10 mins, the car jerks and looses power, RPM drops to about 1.5 so i let go of the gas. When i accelerate again gently, once past RPM abt 1.5 the jerking comes back. the more i step, the more violent the jerks. When this happens i just crawl to a safe spot, off engine and restart and all is back to normal. Quite scary. Now i am just driving on map zero which essentially means on stock ecu, jb "switched off".
car has:
-pml installed performance exhaust
-dual cone air filter
-using either map 1 or 5 on the jb (recommended by ws)
to make things more tricky, once on the jb map, it hijacks the ECU and so no warning lights come up. So when i took it to the ws, the computer diagnosis does not detect any faults and they say it seems to drive normal. Does anyone have any experience or advice to share? Could you point me to something so i can maybe do more research?
thank you!
S
Last edited by a moderator:
tatler
Well-Known Member
Re: Greetings
Hi Bro, 1stly, welcome on board, enjoy your stay! 2ndly, congratulations on a sweet fine ride. Now, the disaster starts.....well nothing bad actually but a few pointers to take note.
I am one who can exactly picture what you are trying to explain because my ride is same as yours & have JB4 installed as well.
Before installing JB4 2 months back, I didn't suffer the irritating jerks same as you described. (note - while driving hard)
After installing it together with dual cone filters, the same events happened at least 3 x. Went to Boss to have the engine diagnosed.......and guess what, the usual culprit turned up on board the computer results page >>>>>> High Pressure Fuel Pump ! They also shared their experience with other 335 customers over the years, the HPFP issue is a common issue.
FYI this is a common part that needs replacement for 335's manufactured in 2007 & 2008 some say 2009.
Another possibility told to me by them was, because JB4 demands your engine & parts to be in optimal running condition, to match up to its increased performance delivery, you gottta ensure these main parts have to be in the pink of health:
HPFP - high pressure fuel pump
Ignition Coils
Spark Plugs
So I have replaced those 3 parts & today the pick up feels like you're darting off instead from standstill, feels so much better, the various rpms seem to be stable & linear.
I did experience once 2 days ago though, that same choky, jerky feeling from the pedal & the engine. But other than that, I am monitoring the situation.
In summary, the parts I replaced, reduced the possible frequent recurrence, but it surfaced once again 1 x.
has any other bros on JB4 335i experienced similar events & managed to resolve the issue entirely?
Hi Bro, 1stly, welcome on board, enjoy your stay! 2ndly, congratulations on a sweet fine ride. Now, the disaster starts.....well nothing bad actually but a few pointers to take note.
I am one who can exactly picture what you are trying to explain because my ride is same as yours & have JB4 installed as well.
Before installing JB4 2 months back, I didn't suffer the irritating jerks same as you described. (note - while driving hard)
After installing it together with dual cone filters, the same events happened at least 3 x. Went to Boss to have the engine diagnosed.......and guess what, the usual culprit turned up on board the computer results page >>>>>> High Pressure Fuel Pump ! They also shared their experience with other 335 customers over the years, the HPFP issue is a common issue.
FYI this is a common part that needs replacement for 335's manufactured in 2007 & 2008 some say 2009.
Another possibility told to me by them was, because JB4 demands your engine & parts to be in optimal running condition, to match up to its increased performance delivery, you gottta ensure these main parts have to be in the pink of health:
HPFP - high pressure fuel pump
Ignition Coils
Spark Plugs
So I have replaced those 3 parts & today the pick up feels like you're darting off instead from standstill
, feels so much better, the various rpms seem to be stable & linear. I did experience once 2 days ago though, that same choky, jerky feeling from the pedal & the engine. But other than that, I am monitoring the situation.
In summary, the parts I replaced, reduced the possible frequent recurrence, but it surfaced once again 1 x.
has any other bros on JB4 335i experienced similar events & managed to resolve the issue entirely?
s555555555;1013976 said:
s555555555
Member
Re: Greetings
Thanks JJ. And Tatler, thanks for sharing your experience...much appreciated. I will go check those parts you mentioned. Actually i did ask workshops if its any typical problem parts that is the cause and after the computer diagnosis turned up clean, and they test drive, they told me: Bo tai ji leh...
Will update once I sort it out.
In the mean time any others who can share some pointers pls do.
Cheers
S
Thanks JJ. And Tatler, thanks for sharing your experience...much appreciated. I will go check those parts you mentioned. Actually i did ask workshops if its any typical problem parts that is the cause and after the computer diagnosis turned up clean, and they test drive, they told me: Bo tai ji leh...
Will update once I sort it out.
In the mean time any others who can share some pointers pls do.
Cheers
S
s555555555
Member
Re: Greetings
Don't know lah, don't want to jump to conclusions. Hope your problem doesn't resurface another time.
Don't know lah, don't want to jump to conclusions. Hope your problem doesn't resurface another time.
s555555555
Member
Re: Greetings
Thanks baby1M, sorry got so many 5s. S555 was taken up, s5555 also taken up so I just hold the 5 key a bit longer
Thanks baby1M, sorry got so many 5s. S555 was taken up, s5555 also taken up so I just hold the 5 key a bit longer
E92-Lighting
Well-Known Member
Re: Greetings
congrats and welcome aboard
congrats and welcome aboard
Je_taime
Well-Known Member
Re: Greetings
in fact u can also use the JB4 to see if there are other errors which can compliment the findings on the computer diagnosis thingy...
for the HPFP, it might not be a complete failure but an on and off thingy... maybe that gave you the "bo tai ji" reading with the computer diagnosis...
a mechanic told me that the pressure reading (via the com) can give a indication of health of the pump... the pressure may be lower than normal, but not low enough to throw a warning at the point of diagnosis... what is the magic number and how true, i dunno...
my 2 cents...
actually if i am not wrong, JB4 do not hijack the errors thrown by the ECU.. i.e. you will still see everything...s555555555;1014155 said:
in fact u can also use the JB4 to see if there are other errors which can compliment the findings on the computer diagnosis thingy...
for the HPFP, it might not be a complete failure but an on and off thingy... maybe that gave you the "bo tai ji" reading with the computer diagnosis...
a mechanic told me that the pressure reading (via the com) can give a indication of health of the pump... the pressure may be lower than normal, but not low enough to throw a warning at the point of diagnosis... what is the magic number and how true, i dunno...
my 2 cents...
s555555555
Member
Re: Greetings
Je_taime, thanks a lot for that. Very informative. I'll go try it this weekend...
Je_taime, thanks a lot for that. Very informative. I'll go try it this weekend...
s555555555
Member
Re: Greetings
Tatler, you should look at the link je_taime just posted too...
tatler;1014156 said:
Tatler, you should look at the link je_taime just posted too...
Red_Bean_Bun
Well-Known Member
Re: Greetings
Stock is best ....... Welcome.
Stock is best ....... Welcome.
s555555555
Member
Re: Greetings
thanks. ya lor and i still thought can zhng some more until faster than M :errrrrrr:
thanks. ya lor and i still thought can zhng some more until faster than M :errrrrrr:
