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Old 21 Mar 2010, 07:09 PM   #1 (permalink)
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boost problems

hi there anyone help had a so call problem with my coil pack so replaced it that did not solve the nospark to 1 and 2 so changed the ecu that solved that now i have flat spots when in boost underload in high gears changed plugs still same doing my head in can anyone help
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Old 21 Mar 2010, 11:54 PM   #2 (permalink)
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Re: boost problems

Was the previous ecu mapped and what mods you running?
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Old 22 Mar 2010, 03:17 AM   #3 (permalink)
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Re: boost problems

full stainless dcat green filter baily dump valve general safe things but a had a dyno done and was running at a good 250bhp good every thing concering power and delivery seems like a bit ov a slight murmur under load in top gears 1st and 2nd pull ok but 3 4 5 boost gradually reset ecu cleaned boost sel and cheched for leaks else where checked engine light etc still stuk doin my blok in lol
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Old 23 Mar 2010, 07:47 AM   #4 (permalink)
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Re: boost problems

what year car?
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Old 24 Mar 2010, 07:46 PM   #5 (permalink)
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Re: boost problems

its a 2000 pain in the ass model
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Old 24 Mar 2010, 10:23 PM   #6 (permalink)
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Re: boost problems

Tis correct ECU (exact same model) and not been mapped or extra board soldered in ?
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Old 24 Mar 2010, 10:43 PM   #7 (permalink)
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Re: boost problems

no its a brand new ecu cant understand why its doing it
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Old 24 Mar 2010, 10:46 PM   #8 (permalink)
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Re: boost problems

think i've spotted the problem......the Bailey....well known for weak diaphrams,if you have the O/E,stick it on an give it a go..


also thinking about it,the spark may be blowing out,regap the plugs to 0.5,should help reduce the posibility of plug extinguishing
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Old 24 Mar 2010, 10:49 PM   #9 (permalink)
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Re: boost problems

thanks will try it
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Old 24 Mar 2010, 10:53 PM   #10 (permalink)
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Re: boost problems

maybe worth getting a boost gauge,if you've not already got one,can see if and where the boost starts to fluctuate and/or drop off..
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Old 24 Mar 2010, 11:03 PM   #11 (permalink)
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Re: boost problems

its like its got a air leak.. i have just sent it off to a garage today the cars bin off road for 3 months get it bk and now this there as bin that many tossers under it it could be anything pal
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Old 24 Mar 2010, 11:06 PM   #12 (permalink)
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Re: boost problems

defo sound like the baileys to me a mate had same prob with his,swapped it to mine,ran up the road and it basically blew apart,no power what so ever,on removal of it you could see it was totally shot,as i said stick O/E one on and see what happens..
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Old 24 Mar 2010, 11:13 PM   #13 (permalink)
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Re: boost problems

wud it not issss if it had gone had one go on my fiesta turbo? plus when the coil pack went and ecu a run it on 2 pots to get me home could that have anything to do with it????
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Old 24 Mar 2010, 11:23 PM   #14 (permalink)
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Re: boost problems

if the valve has closed you'll get no sound what so ever...,ecu may have gone into safe mode,to protect the engine,also look at cleaning the maf and check the 02 senor,both those can cause an misfire type problem and hesitance..
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Old 24 Mar 2010, 11:27 PM   #15 (permalink)
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Re: boost problems

ok thanks for that will look in to cheers
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