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Engine Miss/rumble?


xr6tee9

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  • Member
  • Member For: 11y 12d
  • Gender: Male
  • Location: adelaide

gday all, not really sure where to post this but im having a problem that is really beginning to annoy me.. xr6t bf2 seems to have a slight popping through exhaust in park at about 2200 to 2500rpm.. in drive under light acceleration it happens at precisely 1250rpm and is heard as a slight rumble through exhaust and a sluggish spot.. if I can hold it @ those rpm the tacho fluctuates approx 200rpm with speed staying same.. approx 60kmh.. but is hard to hold there with 6 speed zf in triptronic mode wanting to change gear at that speed.. from a standing start car performs great, boosts up, breaks traction etc, but from a rolling start around said speed it is sluugish then boosts up, surges, drops then surges again.. not sure but seems to be on gear change, does it with traction on or off.. I was thinking coils to start with but then they usually break down at higher rpm, plug gaps maybe? or wastegate?? no leaks in intercooler piping, throttle body could need a clean but was done about 6 months ago..

low rpm- could it be vct.?

im heading to see bruce in next week or 2 as it also has a 2 sec rattle at start up.. possibly chain guides..

Edited by xr6tee9
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  • Member For: 11y 12d
  • Gender: Male
  • Location: adelaide

heres is some numbers I found on them.. previous to bruce changing it had 42lb injectors.. numbers are 3R23AA one side, 0280156128 other side, at top fuel rail is 806.. colour is blue

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  • Member For: 11y 12d
  • Gender: Male
  • Location: adelaide

Well my research doesnt find this partno. But it does find it ending in a 3.. which seems to be standard injectors.. wtf..!

Correct me if im wrong..

Will be contacting bruce if this is indeed the case..

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  • Member For: 11y 10m 15d
  • Gender: Male
  • Location: Sydney/Canberra

heres is some numbers I found on them.. previous to bruce changing it had 42lb injectors.. numbers are 3R23AA one side, 0280156128 other side, at top fuel rail is 806.. colour is blue

Yeah mate they're the standard ones alright codes match up to the ones I pulled out of mine ages ago. Sounds like he downgraded you and charged ya thinking you wouldn't know any better.

The previous ones you had woulda been out of an F6 if they were 42lb. They also would have been green

Standard ones are about 20lb

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  • Member For: 11y 12d
  • Gender: Male
  • Location: adelaide

I suppose it is possible he has fitted redrilled/reflowed units.. ringing him tomorrow.. I have a dyno sheet for 369.8rwkw which contradicts they are standard..??

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