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ef missing 

 

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 Post subject: ef missing
Posted: Sat Nov 11, 2006 7:19 pm 
Parts Gopher
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Ride: ef falcon

Location: ayr
QLD, Australia

hey ive got an ef with a fresh rebuilt 6, its got a bit of head work, mild cam and full exhaust. but im having trouble with it missing. its got irridium platinum plugs, 10mm race leads and new coil packs. the injectors are about 9 months old and hav only had premium thru them, and the fuel filters been replaced 2 weeks ago. also sumtimes when i first start it, it runs really rough. im sort of thinking the fuel regulator or the pump. any ideas????
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Posted: Sat Nov 11, 2006 8:55 pm 
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Ride: EBII XR6 /ED XR6 /EF XR6

Power: 154 rwkw

Location: gold coast
QLD, Australia

try the coil pack
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Posted: Sat Nov 11, 2006 9:03 pm 
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Ride: ef falcon

Location: ayr
QLD, Australia

yeah i did, got it yesterday and it was runnin strong then it went sh*t again. ive also heard they play up if the pcv valve leaks.
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Posted: Mon Nov 13, 2006 12:59 pm 
Stock as a Rock
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Ride: EF Mont

Location: Hobart
TAS, Australia

I've got a similar problem. She misses / runs rough on me sometimes. I've just done new plugs but havent tried anything else just yet. Gonna go leads next then maybe get the coil pack looked at...

 

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Posted: Mon Nov 13, 2006 2:23 pm 
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Ride: ef falcon

Location: ayr
QLD, Australia

yeah im thinkin along the lines of the pump or regulator, it seems like a fuel problem. cos wen i cold start it, all u can smell is fuel and it choofs a bit of durry. and everytime ive replaced something on the ignition side of things it goes good for a few days and starts missing again. im gonna put it on the scan tool 2moro and check for any faults, see how it goes anyway.
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Posted: Mon Nov 13, 2006 9:23 pm 
Getting Side Ways
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Ride: ef fairmont

Location: orange
NSW, Australia

replace the cam angle sencer thay have a habit of s**t them selfs
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Posted: Mon Nov 13, 2006 9:40 pm 
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Ride: ef falcon

Location: ayr
QLD, Australia

ive changed my injectors over with an old set i had laying around and its only surging slightly between 1 and 2. so im guessing it was leaking injectors, still doesnt explain y it was missing tho. ill put it on the scan tool at work 2moro c wat comes up
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Posted: Mon Nov 13, 2006 9:43 pm 
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Ride: ef falcon

Location: ayr
QLD, Australia

the cam angle sensors the one in the dizzy hole isnt it, its just a fail safe if the crank agnle fails, im pretty sure
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Posted: Mon Nov 13, 2006 10:03 pm 
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Ride: BA XR6T

Location: perth
WA, Australia

freshly rebuilt motors dont run right for a bit - ECU has to relearn stuff and heck its definately not used to the extra amount of cleanliness.

replace the o2 sensor - did it to mine and it runs a treat and i was told it was the regulator and pump (650 - 700$ fitted from ford !!!)

o2 sensor is 90$.
wont show up on diag either haha.
hope some of this helps

 

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Posted: Mon Nov 13, 2006 10:13 pm 
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Ride: ef falcon

Location: ayr
QLD, Australia

thanks ill hav a look at it. the motors about 2 months old now, but yeah it didnt run too well for a few days, then i reset base idle and relearnt it. i checked the o2 sensor wen i put the motor in and it looked fine, but whose to say it isnt now lol. ur gettin ripped for that price for a regulator. give me 92 bucks and 20 mins and i'll fit it myself lol. u can also check the sensors on the fords, u gotta check the resistance. and i dunno at wat temp to check the o2 or the temp sender.
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Posted: Tue Nov 14, 2006 12:17 am 
Getting Side Ways
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ill second the cam angle sensor. i had exactly the same problems. got a mechanic to check it all and run the codes came back with a completly dead cam angle sensor. it will cause it run a little rough now and again and will cause idle problems.
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Posted: Tue Nov 14, 2006 2:30 pm 
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Ride: ef falcon

Location: ayr
QLD, Australia

yeah i just had it on diagnosis and it came up cam angle sensor, and isc cant control idle speed. but 4 out of 5 falcons ive put on there hav the cam angle sensor out of range and there running fine...
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Posted: Thu Dec 14, 2006 6:23 pm 
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Ride: BA Futura

Location: geelong
VIC, Australia

i had pretty much the same problem with my car.
instead of replacing things til it fixed itself i got told that the
PCV valves like to s**t themselfs causing wat your talking about
i would replace that first. for a good brand one your looking at
about $15 from bursons

 

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