BFHOON Donating Members 1,932 Member For: 18y 8m 5d Gender: Male Location: nsw Posted 14/05/07 10:36 AM Share Posted 14/05/07 10:36 AM mine backfires on deceleration after a hard boost, every time.and its not little popps either. Link to comment Share on other sites More sharing options...
Chris xr6 Member 376 Member For: 20y 8m Location: Shire Posted 14/05/07 11:00 AM Share Posted 14/05/07 11:00 AM Yeah it sounds like a vaccum leak Link to comment Share on other sites More sharing options...
RAP1D Member Donating Members 3,739 Member For: 18y 6m 10d Gender: Male Location: Sydney NSW Posted 14/05/07 11:01 AM Share Posted 14/05/07 11:01 AM If an IC pipe comes off the motor still drives normal, no vac loss... just no boost Link to comment Share on other sites More sharing options...
Fat-Tony Member 5,364 Member For: 18y 8m 9d Posted 14/05/07 11:12 AM Share Posted 14/05/07 11:12 AM Hence why I am thinking its got to be something around the inlet runners ectI once refitted a plenum to a Honda Integra, where it was missing 2 bolts for the plenum chamber to bolt to the inlet runners, did exactly what is described above, with the exception I had no boost guage fitted and never actually drove the car. Link to comment Share on other sites More sharing options...
BALLBREAKER Member 427 Member For: 19y 5m 10d Gender: Male Posted 14/05/07 11:22 AM Share Posted 14/05/07 11:22 AM Mate maybe I can help,remove cross over over rocker cover u will see a hose that cames from brake boaster it has a joiner that has blown off,use clamps and to join back. & all will be fine. Link to comment Share on other sites More sharing options...
SCRIBR Yaris member Member 4,486 Member For: 18y 5m 8d Gender: Male Posted 14/05/07 11:33 AM Share Posted 14/05/07 11:33 AM Whats with all these back firing cars lately?The union rep just rang me and said it might be the new IR laws Link to comment Share on other sites More sharing options...
RAP1D Member Donating Members 3,739 Member For: 18y 6m 10d Gender: Male Location: Sydney NSW Posted 14/05/07 12:22 PM Share Posted 14/05/07 12:22 PM LOL Link to comment Share on other sites More sharing options...
cv8z Member 125 Member For: 18y 5m 10d Location: Brisvagas Posted 15/05/07 05:26 AM Author Share Posted 15/05/07 05:26 AM (edited) Ok guys/galsI have got it towed to my w/shop this morningStarted the car it did the same thing (shocking idel,no vacume)I reflashed the stock tune back into it and it idled fine (but hunted when holing revs or trying to accelerate)Fine looked like a edit faultI reflashed the performance tune back into it and it was ok (slight miss)Read the codes from the computer and there was a code saying "emergency throttle shut down"Easy possiable TPS or Stepper motor faultStill does not explain no vacume from the engine Any ideasps: checked the brake booster line (all is connected and very very minimal vacume at idle) Edited 15/05/07 05:30 AM by cv8z Link to comment Share on other sites More sharing options...
xr6 typhoon Good for nothing member Donating Members 619 Member For: 20y 5m 5d Location: Sydney Posted 15/05/07 05:37 AM Share Posted 15/05/07 05:37 AM I still think you need to take the cross-over pipe off and check the hose that runs across the back of the rocker cover. to the right rear of the rocker cover this hose has a plastic join that can blow apart when the car backfires Link to comment Share on other sites More sharing options...
xr6 typhoon Good for nothing member Donating Members 619 Member For: 20y 5m 5d Location: Sydney Posted 16/05/07 07:05 AM Share Posted 16/05/07 07:05 AM any progress? Link to comment Share on other sites More sharing options...
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