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bf falcon bad idle/missfire/stall. 

 

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 Post subject: bf falcon bad idle/missfire/stall.
Posted: Sat Aug 16, 2014 9:47 pm 
Fordmods Newbie
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Age: 27

Posts: 2

Joined: 16th Aug 2014

Ride: 06 bf xr6 falcon

Location: rockhampton
QLD, Australia

hey guys my 06 bf falcon is having a few problems
it has a slight miss when idling in Drive.it seems to be idling very low 550rpm
i went to take off and it started chugging and then it stalls
but still revs up fine in park
i was started after i fitted my new cat pipe just before it happen so i could of bumped some thing?

whats some signs of a faulty TPS?
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 Post subject: Re: bf falcon bad idle/missfire/stall.
Posted: Sun Aug 17, 2014 7:30 pm 
Getting Side Ways
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Age: 45

Posts: 3440

Joined: 23rd Dec 2007

Gallery: 32 images

Ride: BA XR6T (mix of BA, BF and FG)

Location: Perth
WA, Australia

dobbsy wrote:
hey guys my 06 bf falcon is having a few problems
it has a slight miss when idling in Drive.it seems to be idling very low 550rpm
i went to take off and it started chugging and then it stalls
but still revs up fine in park
i was started after i fitted my new cat pipe just before it happen so i could of bumped some thing?

whats some signs of a faulty TPS?



It's a BF so it has a secondary oxy sensor behind the cat I believe, are both still there and hooked up?

If it wasn't doing it immediatly before the cat converter, than it's likely not related to the usual BA/BF not idling things.. Is the new cat much bigger or more free flowing than the original? If so you might need your tune adjusted to account for the change. (not sure though, but that advice might relate only to the turbo falcons.) If you have an ODB2 bluetooth adaptor and an android phone it might be worth checking your error codes... if it's got an oxy sensor related error, it will tell you so. (odb2 bluetooth adaptors are 7 dollars on ebay and work with any android phone. Torque is free to check error codes on android. ) If you have an iPhone you are out of luck unless you buy a much more expensive wireless Odb2 adaptor.

From memory to reset the computer in a BA/BF, you put the accelerator flat to the floor with the car off.. and then try to start it. it won't start, but after 10 seconds of turning over with your foot flat to the floor it will reset and try to relearn the idle etc. It's possible that the exhaust change needs to be accounted for by the computer. I doubt it will make much difference, but it's free and easy so you almost have to try it.
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