Shagonwagon01 Member 17 Member For: 11y 7m 9d Posted 20/04/13 04:14 PM Share Posted 20/04/13 04:14 PM My god my f*ckin sh*tty bf does the same thing!! Been trying to get to the bottom of it I originaly thought it was the fuel im running, not the case now I was told could be a blockage in the induction still not the case!Mine idles like sh*t then all of a sudden kicks back into normal its aost like its gasping for fuel or something?Does your engine light come on too after floggin it abit? Then dissapier after a couple days ? Link to comment Share on other sites More sharing options...
_Velocity_ Bronze Donating Members 2,768 Member For: 13y 6m 30d Gender: Male Location: Victoria Posted 20/04/13 06:23 PM Share Posted 20/04/13 06:23 PM Usually coils are most noticeable under WOT but won't cause rough idle. Sounds more like valve float. Maybe the turbo actuator's diaphragm has a split in it and is causing over boost under WOT. 1 Link to comment Share on other sites More sharing options...
Periklis Member 67 Member For: 14y 3m 14d Posted 21/04/13 02:57 AM Author Share Posted 21/04/13 02:57 AM This just does not make sense because it was happening before I threw a rod on my previous engine, this is now a new motor with a replaced turbo, and a replaced cat...... any ideas?? this topic seems to be so popular but not defintive answer... its killing me Link to comment Share on other sites More sharing options...
Periklis Member 67 Member For: 14y 3m 14d Posted 21/04/13 02:59 AM Author Share Posted 21/04/13 02:59 AM is it a good idea to just go put it on a dyno? ive literally run out of ideas.. Link to comment Share on other sites More sharing options...
_Velocity_ Bronze Donating Members 2,768 Member For: 13y 6m 30d Gender: Male Location: Victoria Posted 21/04/13 05:47 AM Share Posted 21/04/13 05:47 AM Is it your original head on a new block / bottom end or did you replace the entire engine? Link to comment Share on other sites More sharing options...
Periklis Member 67 Member For: 14y 3m 14d Posted 23/04/13 12:18 PM Author Share Posted 23/04/13 12:18 PM entire motor that is why I am so confused.. Link to comment Share on other sites More sharing options...
retro-xr6t Donating Members 95 Member For: 14y 10m 10d Gender: Male Posted 23/04/13 01:23 PM Share Posted 23/04/13 01:23 PM prob worth taking to a workshop and run some diagnostics. Link to comment Share on other sites More sharing options...
boost69 Donating Members 737 Member For: 19y 6m 5d Posted 23/04/13 11:45 PM Share Posted 23/04/13 11:45 PM So it backfires when you give it WOT?...if the car has a generic tune to get the boost up, then you difinitely need to throw it on a dyno. Link to comment Share on other sites More sharing options...
Wenier Donating Members 1,736 Member For: 14y 10m 6d Gender: Male Location: Christchurch, New Zealand Posted 24/04/13 04:15 AM Share Posted 24/04/13 04:15 AM When you say replaced cat, is it factory cat or aftermarket? Link to comment Share on other sites More sharing options...
spook Donating Members 180 Member For: 16y 7m 19d Gender: Male Posted 24/04/13 04:42 AM Share Posted 24/04/13 04:42 AM Check your fuel pressue. Mine had similar symptoms to yours but funnily enough only on hot days and with less than half a tank of fuel (pump was speed was eratic). Replaced pump - all good. Link to comment Share on other sites More sharing options...
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