let missfire on boost

[belly257]

erm ill start from the top, had my nova turbo on the road last summer (some of you may of met me at the png n w rolling rd) anyway over the winter i put a fmic on it and bigger boost pipes, enlarged top hat, 3inch exhaust from the turbo back, also has a phase 2 ecu, so took it for a spin today and big missfire wen car comes on boost? so thought ok changed the ecu back to standard and still a missfire, this is strange as it was running perfect last summer, anyone got any ideas? (sorry for the essay btw):)

[jackerts]

what plug gaps are you running fella?

[belly257]

what plug gaps are you running fella?

not to sure thing the 0.7 but not 100%, it was fine before though with them plugs, although i had a feeling it may of been something to do with them

[jackerts]

i closed mine to .6 when i was having this problem and all was good. Maybe try some RST plugs only cheap and ment to work well

[belly257]

i closed mine to .6 when i was having this problem and all was good. Maybe try some RST plugs only cheap and ment to work well
where can i get these plugs from? my motorfactors round here only sell ngk rubbish lol

[david dixon]

you haven't touched the acutator have you?

David.

[belly257]

you haven't touched the acutator have you?

David.

nope

[jackerts]

i run ngk platnum's in mine mate but they'll rush you over 30 a set. Do you have a boost gauge fitted?

[belly257]

i run ngk platnum's in mine mate but they'll rush you over 30 a set. Do you have a boost gauge fitted?
don't mind paying that if it will fix it lol, and yep ease boost on gets to about 4 or 5 psi and cuts boost out?

[blue_peg_16v]

he means ford escort/fiesta rs turbo plugs the about £8 a set have the right heat range and gapped at 0.6 are perfect in a let there what i run in my phase 3 i had the same probs you described before i switched plugs

[jackerts]

don't mind paying that if it will fix it lol, and yep ease boost on gets to about 4 or 5 psi and cuts boost out? boost seems low to be causing big problems, are you sure you havent got a boost leak on your new pipe work?

[belly257]

boost seems low to be causing big problems, are you sure you havent got a boost leak on your new pipe work?

yep checked the pipe work seems fine, and it might be abit more sometimes about 9 or 10 psi

[jackerts]

thats about the pressure i was having problems, try the plugs mate see how you get on

[belly257]

he means ford escort/fiesta rs turbo plugs the about £8 a set have the right heat range and gapped at 0.6 are perfect in a let there what i run in my phase 3 i had the same probs you described before i switched plugs
ngk? you got a part number?

[belly257]

what about these, ebay em or google
NGK BCP7EVX

[blue_peg_16v]

what about these, ebay em or google
NGK BCP7EVX

i run these at presentt

http://cgi.ebay.co.uk/Rs-Turbo-Cosworth-071-Spark-Plugs-Ford-/270644523360?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3f03abb160

and heres the ngk option

http://cgi.ebay.co.uk/Ford-Escort-RS-Turbo-4-x-NGK-Spark-Plugs-85-91-SP5430-/400087314284?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item5d270fef6c

[belly257]

i run these at presentt

http://cgi.ebay.co.uk/Rs-Turbo-Cosworth-071-Spark-Plugs-Ford-/270644523360?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3f03abb160

and heres the ngk option

http://cgi.ebay.co.uk/Ford-Escort-RS-Turbo-4-x-NGK-Spark-Plugs-85-91-SP5430-/400087314284?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item5d270fef6c
think i will go to motorfactors tommorow and get sum ngk rst sparkplugs

[Paul]

bcr8es

[w_wall_2001]

as above, has similar problem on mine, put rts ones in and gepped to 0.6 and never missed a beat since, on a halfords trade card they are £4.92 for 4 :thumb:

[belly257]

as above, has similar problem on mine, put rts ones in and gepped to 0.6 and never missed a beat since, on a halfords trade card they are £4.92 for 4 :thumb:

got the ngk plugs, gapped them at.6 no change:mad:

[w_wall_2001]

are the leads in good condition?

[belly257]

fixed it! was the fuel pump not giving engine enough fuel, got a top of the range bosch one, was £150!:wtf:

[w_wall_2001]

long as its sorted